bluuebunny/crossref_metadata_2025 huggingface dataset:
Textual construction of the hearing-impaired students’ recount texts: A case of students with special needs in writing to mean
Authors: Gunawan Wawan , Wirza Yanty , Holik Nici Azhari
Published: October 2020

Being cohesive in writing for the hearing-impaired students is very crucial, serving as an alternative means of expressing ideas without using sign language in communicating with people in general. This study aims to analyze the textual structure of the hearing-impaired students’ recount texts to instantiate how they structure language in communication. This study focused on investigating the choice of theme and thematic progression patterns as an instantiation of making meanings among the hearing-impaired students as a minority group of students with special needs. The data were 36 recount texts of high and low achiever students collected from three educational levels: elementary, junior high, and senior high schools. Following a qualitative approach to data collection and analysis, this study relied on Systemic Functional Linguistics as the main conceptual framework for investigating types of theme and thematic progression patterns, and how these two elements showed the features of writing to mean among the hearing-impaired students. In terms of theme choices, the findings indicate that low achiever hearing-impaired students employed more marked themes with a lack of ability in writing to mean. In terms of thematic progression, theme reiteration pattern was the most frequently employed pattern, indicating a strong intention to the topic. The study informs that the textual description of the hearing-impaired students’ writings could help the teachers understand what and how to teach to improve their writing to mean.
Seed-fruit relationships in fleshy fruits: Role of hormones. A review
Authors: Balaguera-López Helber Enrique , Fischer Gerhard , Magnitskiy Stanislav
Published: October 2020

Seeds are known to have significant biological importance in nature, and they have high economic value in agriculture. This review discusses the physiological, biochemical, and hormonal aspects involved in the seed-fruit relationship, highlighting the main implications that seeds have on fruit set and growth, development, and abscission of some fleshy fruits. Fleshy fruits, with the exception of some parthenocarpic species, require pollination and double fertilization for seed formation. This contributes to the stimulation of hormone synthesis for auxins, gibberellins, cytokinins, and brassinosteroids. These hormones are required for seed formation and, in turn, for fruit development; and they determine fruit set, final fruit size, fruit shape and quality characteristics in some fruits. This knowledge is necessary for successful management of the cultivation of species producing fleshy fruits.
Design and Analysis of Low Power Energy Efficient Braun Multiplier
Authors: Dr. Bhushan Bandre
Published: October 2020

Designing of Braun multipliers using various hybrid full adder circuits are described in this paper. In DSP and communication systems, multipliers are the main power consuming elements. Dynamic power dissipation contributes a lot to power consumption in CMOS logic. Braun multipliers employing Row bypassing techniques are designed to minimise the switching activities which aids in reducing dynamic power consumption. Full adders constitute a most vital part in multipliers. In this paper, Braun multiplier is designed using three different hybrid full adders .Area and power consumption of the resulting circuits are compared and analysed. The Braun multipliers are implemented and simulated using Tanner spice.
Modified Golomb-Rice Algorithm for Color Image Compression
Authors: Mr. Rahul Sharma
Published: October 2020

The memory required to store the color image is more. We have reduced the memory requirements using Golomb-rice algorithm. Golomb-rice algorithm consists of the following two steps. In Golomb-Rice algorithm the first step is to compress the image using discrete wavelet transform. By using DWT compression the 8 × 8 image is converted into m × n sub-windows and it is converted into raster file format for producing m × n-1 differential data. Encoding is done by using Golomb-Rice coding.  After encoding, the process length, code word and size are calculated by using GR coding.In the second step decoding is done by GR coding based on the obtained length and code word. After that decoded image is decompressed in order to get the original image by using the inverse discrete wavelet transform.
Customer Satisfaction Analysis based on Customer Relationship Management
Authors: Dr. Antino Marelino
Published: October 2020

This research paper deals with Customer Relationship Management effects on customer satisfaction. it is one of the strategies which is critical which needs to be deployed in the organization so that competition is improved in the market. There are many customer relationship management elements which help in studying this those are service, development, management, quality, behavior which is one of the most important element. It is one of the biggest weapons for fighting in this competitive environment internally and externally. In today's world, all the organization is an emphasis on winning the minds of customers and make them satisfied by putting all the efforts of customer relationship management. The increase in the customer will be reflecting only when there is customer satisfaction in the business between the companies. With the increase in the technology and industries, the growth is rapid and competition is also taking at a fast pace. In this paper, the surveys are done and hypotheses results are being carried out to show the positive relationship between variables taken for the study..
Object Detection and Sorting using IoT
Authors: Mr. Dharmesh Dhabliya, Ms. Ritika Dhabalia
Published: October 2020

Color based object sorting has a significant impact in food and processing Industries. Hand picking process in sorting the huge number of objects in industry is very common and laborious task, and time consuming as well, which needs many labors and this conventional method is prone to error. The proposed work aims to replace the hand-picking process by Industrial Internet of Things. The goal of the technique is to sort and count the objects in to different bins accord to their color. A Color sensor, TCS 230 will identify the object and with the help of motors they are made to drop into different bins. The identification of the object is made with the help of frequency concept. As it known that different colors have different wave lengths, so are the different frequencies (f=c/λ). For each frequency, the motor rotates to different angles and thus container is attached to motor is also made to rotate to a certain angle, and the object is made to drop into the bin by a jerk. This action details regarding number of objects manufactured are sent to the IoT server, where the vendor and customer will know the details remotely. This proposed work finds a wide range of usage in fruit industry (to pick the unripen fruit), in candy industry, in grain industry (to remove the black stones from the grains), in recycling industry.
Analysis and Modeling of Physical Stratum for Power Line Communication
Authors: Prof. Madhuri Zambre
Published: October 2020

In recent days, power line communication is one of the emerging technologies for high data rates (data transmitted at high speed). It is also cost effective and dependable channel. It is used in many applications such as home automation, broadband internet access, car embedded systems etc. Orthogonal Frequency Division Multiplexing dependent PLC physical layer is presented in this work. It is measured in terms of BER employing MATLAB 2013a. Here, multipath channel model is employed for the purpose of simulation because of the unavailability of a primary PLC channel.
Design and Analysis of Low Power Hybrid Braun Multiplier using Ladner Fischer Adder
Authors: Prof. Shweta Jain
Published: October 2020

Multiplier is important in many DSP systems and in many hardware blocks. Multiplier are used in various DSP application like digital filtering, digital communication. This needs parallel array multiplier to attain high speed for execution and better performance. A specific array multiplier is implemented known as Braun design. Braun multiplier is the one which is a kind of parallel multiplier. It contains different CSA count of AND gates. Braun multiplier employing Ripple Carry Adder is developed here having high speed PPA. It will reduce the delay and implemented using Tanner EDA tool.
Smart Monitoring of the Status of Driver Using the Dashboard Vehicle Camera
Authors: Dr. S. Praveen Chakkravarthy
Published: October 2020

One of the potential approaches to lessen the quantity of mishaps in rush hour gridlock is to follow the driver's condition. In this paper, a new driver observing calculation, which works on a video caught from the camera situated in the instrument board in the vehicle, is introduced. The calculation analyzes the nearness of the driver's head in each edge and checks whether the driver has bizarrely long closed eyes, regardless of whether the driver looks sideways, and whether the driver's head has dropped for quite a while. The calculation is tried utilizing ten unique recordings recorded under various light conditions. The calculation for the most part accomplishes superior, while for a few lighting conditions a specific calculation redesigning would be vital to keep up an elevated level of precision.
Segmental spinal dysgenesis
Authors: Mushkin A. Y. , Ulrich E. V. , Elyakin D. V.
Published: October 2020

Segmental spine dysgeusia is a rare variant of vertebral abnormality that is characterized by severe stenosis of spinal canal, severe spine deformity, spine instability accompanied by congenital isolated spine malformation. Optimum method for the treatment is an early operation directed to simultaneous elimination of spine cord stenosis, deformity correction and restoration of spine stability. The results of examination, technique and surgical outcome are presented for a 2 years and 7 months child with segmental spine dysgeusia.
Biological osteosynthesis in fractures of the trochanteric region of the femur
Authors: Rublenik I. M. , Vasyuk V. L. , Shayko-Shaykovskiy A. G.
Published: October 2020

New interlocking metal-polymeric fixative of the seventh generation for closed osteosynthesis in trochanteric fractures is elaborated and introduced into practice. The strength of the bonefixative system is calculated. The suggested fixative and the technique of its use meet the criteria of biologic (low invasive) osteosynthesis, provides the possibility to perform surgery via small skin incisions and thus minimizes the risk of intra- and post-operative complications.
Surgical treatment of lateral instability of the metacarpophalangeal joint of the first finger
Authors: Korshunov V. F , Skvortsova M. A.
Published: October 2020

Examination and treatment results of 27 patients with lateral instability of metacarpal-phalanx thumb joint were presented. The indication to operation and technique of surgical intervention in dependence on the terms from injury moment, presence or absence of instability, value of passive lateral deviation angle were detected. Surgical technique for the treatment of complete tears of collateral ligaments of metacarpal-phalanx thumb joint was petfected. In 22 patients follow up period ranged from 6 to 12 months. Excellent results were achieved in 13 (59%o), good in 7 (32%)), satisfactory in 2 (9%) patients.
Morphological characteristics of the anterior cruciate ligament of the knee joint in case of its damage (experimental study)
Authors: Taylashev M. M. , Benemanskiy V. V.
Published: October 2020

The changes in ACL after its detachment from the external femur condylar were studied in a rabbit model. It was shown that changes were of phase nature, ligament stumps with wound contraction gradually retracted and atrophied by 45 post-injury day. In isolated ACL injuries with developed joint instability menisci are easily damaged. That confirmed the critical role of ACL in provision of knee stability and testified the necessity of early ligament suturing. Posttraumatic hemosynovitis spontaneously stopped during the first 2 weeks (acute period). Morphologically that period showed marked fibroplastic process that signified the transition of acute period to subacute one (within 2 following weeks). Four weeks after injury the process got into chronic phase with morphologic picture of marked destruction and degeneration of collagen fibers of ACL stump.
The induced bioelectrical activity of the muscles of the lower extremities in patients with gonarthrosis
Authors: Shein A. P. , Sizova T. V. , Chikorina N. K. , Makushin V. D. , Chegurov O. K.
Published: October 2020

Comparative evaluation of functional lower limb muscle status depending on gonarthrosis severity and technique of surgical intervention was performed using the results of stimulation electromyography (M-responses). Data obtained showed that the changes of evoked bioelectrical activity in lower limb muscles depend to a great degree on the initial status (gonarthrosis grade) than on the technique of surgical intervention.
The study of autoantibodies to collagen of various types in the blood serum of patients with degenerative-dystrophic diseases of the hip joints
Authors: Buylova T. V. , Puchenkina E. V. , Lebedev M. Y.
Published: October 2020

The level of autoantibody (AAB) to collagen was studied in serum of patients with degenerative dystrophic hip joint diseases: deforming coxarthrosis of I, II, III degree, aseptic necrosis of femur head of III, TV degree and cystic remodeling of articular ends of II, III degree. In 123 patients level of AAB to general determinants of collagens was detected using reaction of passive hemagglutination. In 24% of patients high diagnostically significant of AAB titers to collagen were determined. Correlation of AAB level and general determinants of various collagen types as well as the type of articular pathology were studied. In 62 patients AAB level to collagen of I, II, III and IV types was detected using solid phase immunoenzyme analysis. High level of AAB to collagen of I, II types was shown. In patients with aseptic necrosis reliable increase of AAB level to collagen of I (osseous) type and marked tendency to the increase of AAB level to collagen of II (cartilagenous) type was detected. In patients with cystic remodeling reliable increase of AAB level to collagen of II type and tendency to the increase of AAB level to collagen of I type was observed. Strong correlation between AAB level to collagen of II type and clinical manifestations of pathology was determined.
Restorative treatment for pathological fracture of the acetabulum in a patient with neurofibromatosis
Authors: Afaunov A. A. , Afaunov A. I. , Akhtem Y. D. , Mishagin A. V.
Published: October 2020

Skeletal pathology as a manifestation of type I neurofibromatosis is relatively rare in 1520% of patients, and each case of neurofibromatosis bears the stamp of individual uniqueness [1, 2]. Among the indications of the involvement of bone structures in the destructive process, we did not find a description of a pathological fracture of the acetabulum and methods for restoring the support ability of the pelvis and hip in this disease.
The first experience of reconstructive microsurgical operations in patients with traumatic spinal cord disease
Authors: Mironov S. P. , Stepanov G. A. , Grishin I. G. , Golubev V. G. , Natsvlishvili Z. G. , Russkikh S. V. , Karpov I. N. , Khokhrikov G. I. , Kapyrina M. V. , Eskin N. A.
Published: October 2020

The results of microsurgical operation on revascularization and reinnervation of spinal cord performed in 17 patients with traumatic spinal cord disease are presented. Surgical technique was elaborated at CITO. Examination methods are described. Complex program of preoperative management, intraoperative anesthesiologic provision, infusion-transfusion support and postoperative management of patients has been elaborated. This program promotes the homeostasis and optimum functioning of microanastomoses.
Supporting neoarthrosis as an alternative to re-endoprosthetics and arthrodesis in case of purulent processes in the hip joint area
Authors: Malovichko V. V. , Urazgildeev Z. I. , Tsykunov M. B.
Published: October 2020

The experience in treatment and rehabilitation of 100 patients with suppuration following total hip replacement and 60 patients with chronic osteomyelitis of proximal femur and acetabulum is presented. Patients age ranged from 10 to 84 years. Removal of unstable metallic constructions (implant or fixator) and radical resection fistulosequestrnecrectomia by Girdlestone were performed in all patients. In postoperative period the complex program for the elimination of purulent process and rehabilitation measures were carried out. That program foresaw active and expedient control for compensation of the affected joint function. In all patients purulent inflammatory process was eliminated, weight-bearing hip joint neoarthosis with satisfactory function was formed. According to authors opinion the formation of weight-bearing neoarthrosis is an adequate alternative to both revision joint replacement and arthrodesis in purulent process in proximal femur and acetabulum.
Radionuclide scintigraphy in monitoring reparative processes in irradiated bone replants
Authors: Kurilchik A. A. , Bizer V. A. , Perekhrest M. A. , Kudryavtseva G. T.
Published: October 2020

The remodeling of irradiated bone re-implant placed into simultaneously irradiated bed was studied by scintigraphy method using 99Tc-labeled drug (TcLD) (perfoteh). The data obtained were compared with data of radiologic control. The study included 11 patients with osteogenic sarcoma who were operated on after chemo-radiotherapy course. The peculiarities of operation were as follows. Resected bone with tumor was irradiated by single 60 G dose, after that the bone was re-implanted. It was revealed that 1 month postoperatively TcLD retention in contact zone of bone fragments was 22.5 times higher as compared with the symmetric zone of healthy bone. Remodeling peak was observed 1.52 months after operation. Over that interval TcLD retention decreased gradually and by 18 months the contact zone was not detected on scintigrams. According to the data of radiologic control the peak of remodeling took place at 68 months after operation. The study showed that irradiated re-implant preserved mechanical stiffness and worked as a biologic prosthesis while substituting the newly formed bone. Scintigraphy is an additional method the earlier assessment of reparative processes in extracorporal irradiated reimplant as compared to the assessment of radiologic control.
One-stage operations for multiple and associated trauma
Authors: Litvina E. L. , Skoroglyadov A. V. , Gordienko D. I.
Published: October 2020

The question of the performance of one step operation in patients with concomitant and multiple trauma from the point of view of the choice of surgical intervention time, sequence and type of operation is considered. The advantages of one step operation include: one narcosis, one postoperative period, decrease of the risk of posttraumatic and postoperative complications, easing of treatment and nursing at intensive care unit as well as earlier rehabilitation. Criteria for the detection of the surgery time, sequence and type of operative intervention for individual patient with polytrauma were elaborated. Between 1998 and 2002,282 one-step operations (71 emergency operations (within 5 hours after trauma),135 urgent operations (within the first 3 days after trauma) and 76 delayed operations (within 1014 days after trauma)) were performed at Moscow clinical Hospital #1 named after N.I. Pirogov.
Biological internal osteosynthesis at the present stage
Authors: Lazarev A. F. , Solod E. I.
Published: October 2020

Progressive direction in the development of inner osteosynthesis is the preservation of blood circulation in fracture zone, use of minimum operative approach and closed reposition. Authors have summarized the known principles of biological osteosynthesis and gave their opinion on problem. The experience in use of lightly invasive technique of osteosynthesis and AO implants are analyzed basing on 335 patients with fractures of various localization. Possibilities of active postoperative rehabilitation were shown. Original techniques of lightly invasive transcutaneous osteosynthesis with primary and secondary strained pins in periarticular fractures are given. Special attention is paid to the necessity of drug correction of bone quality in the postoperative period.
Treatment of open fractures of the leg
Authors: Gordienko D. I. , Skoroglyadov A. V. , Litvina E. A. , Mitish V. A.
Published: October 2020

Results of treatment of 112 patients were analyzed. All patients were treated at the Moscow Clinical Hospital named after N.I. Pirogov during the period from 1998 to 2002. Fifty-four patients had I and II type,38 IIIA,14 IIIB and 6 patients IIIC type of fractures by Gustilo classification. Tactics of treatment was defined by patients general condition and the degree of soft tissue injury. In fractures of I and II type primary UTN osteosynthesis was preferable; in fractures of IIIA type primary osteosynthesis with AO rod device or Piless device followed by final UTN osteosynthesis were performed. In fractures of IIIB type osteosynthesis was carried out using device. To all patients with fractures of IIIC type the limb amputation was performed. Healing by first intention took place in fractures of I and II type. In fractures of IIIA and IIIB type the open management of wound with following closure during sequential debridement was preferred. When tibia necrosis developed, the resection in fractures zone with following early defect substitution by Ilizarov technique was carried out.
Tactics of complex prevention and treatment of purulent-septic complications in clinical traumatology
Authors: Sergeev S. V. , Ezmekna S. , Zelenshna L. I. , Novozhilova E. A. , Golubeva V. L. , Suvorova I. A. , Yurina T. M. , Zagorodniy N. V. , Abdulkhabirov M. A. , Koshevarova O. V.
Published: October 2020

The results of prevention and treatment of purulent and septic complications are presented. There were 21 patients with closed and open fractures and 21 patients with post-traumatic purulent complications and trauma sequelae. Thirteen patients had multiple and concomitant injuries. Treatment included the combination of surgical and conservative methods of fracture stabilization, antibiotic therapy as well as detoxication by efferent methods and immunocorrection.
Specialized medical care for children with injuries and diseases of the musculoskeletal system in the pediatric field hospital
Authors: Rozinov V. M. , Petlakh V. I. , Yandiev S. S. , Burkin I. A. , Shabanov V. E.
Published: October 2020

The results of traumatologic and orthopaedic care rendered to children at Pediatric Field Hospital in Chechen Republic during the period from April 16,2001 to July 6,2002 were analyzed. Within that period 4061 outpatient consultations were conducted,447 patients were treated at the hospital,554 surgical interventions were performed and 33 patients were consulted in the leading clinics of the Russian Federation by means of telemedical technologies. All patients had injuries and diseases of loco-motor system. The experience of Pediatric Field Hospital is indicative of the efficacy of the presented model of the organization of specialized orthopaedic and traumatologic care under conditions of nonfunctioning regional public health.
Mistakes and complications in the conservative treatment of congenital hip dislocation in children
Authors: Malakhov O. A. , Levanova I. V. , Kralina S. E. , Sharpar V. D.
Published: October 2020

Retrospective analysis of treatment of 183 patients, aged 1 month-18 months, with congenital hip dislocation was performed. 146 patients had failed hip reduction. It was detected that in 134 cases (91.8%) inadequate treatment and/or wrong management and behavior of parents took place. Failed treatment with Frejka pillow, abductive splint, Pavlic device, functional plaster bandage, closed reduction were considered. Main mistakes in application of those methods as well as violation of treatment tactics were described. It was shown that repeated failed femoral head reductions were unfavorable factors for the following development of hip joint.
Conservative treatment of children with congenital hip dislocation
Authors: Bakhteeva N. K. , Vinokurov V. A. , Norkin I. A. , Persova E. A.
Published: October 2020

Long-term results of conservative treatment of 612 children (710 joints) with congenital hip dislocation showed that the highest complication rate was detected in Lorenz procedure. Authors suggest the device to reduce hip dislocation without traumatization but with preservation of joint movement during treatment. Movements rotating the hip inside promote epiphysis centration into acetabulum that decreases the risk of dystrophic process development. In 91.4% of cases excellent and good results were achieved in children over 4 months who were treated using that device in combination with physiotherapy. Rational tactics for conservative treatment of congenital hip dislocation was elaborated. Authors believe that the suggested treatment complex allows to delay by 10-15 years the early coxarthrosis development in children and adolescents.
The concept of the use of artificial correction of movements in orthopedics, traumatology and prosthetics
Authors: Vitenzon A. S. , Petrushanskaya K. A.
Published: October 2020

Principles and methods of artificial movement correction (AMC) with muscle electrostimulation during pathologic gait were considered. It was shown that the most important peculiarity of AMC was phase conformity of artificial and natural irritation as well as construction of muscles at movement. Electrostimulation in M zone, when muscle activity at movement is the maximum one, is obligatory. The main functions of AMC were detected: i.e. therapeutic, diagnostic and prognostic. Indications and contraindications for FMC application as well as technological operation were determined. Clinical and instrumentation evaluation of AMC results in certain pathologic changes of loco-motor system, i.e. crus stump, III degree of scoliotic deformity, non-union and pseudoarthrosis of bone crus is given.
Experimental model of hereditary spinal deformity
Authors: Zaydman A. M. , Borodin P. M. , Rusova T. V. , Korel A. V. , Sakharov A. V.
Published: October 2020

Model of spine deformity-like SheuermannMau disease was obtained by crossing of two lines of mice with known genetic defects. Results of morphologic and ultrastructural studies permitted to extra-polate the obtained data, with certain prudence, on clinical manifestations of investigated pathology and to explain the main pathogenic mechanisms of process development.
The use of plastic material "perfoost" in the clinic of pediatric bone pathology
Authors: Snetkov A. I. , Lekishvili M. V. , Kasymov M. A. , Ilina V. K. , Batrakov S. Y. , Vasiliev M. G. , Avakyan A. M. , Pavlov R. P. , Fazilova A. A.
Published: October 2020

Osseous-plastic material Perfoost demineralized lyophilized perforated allografs- was elaborated at CITO in 1997. Study of mechanical characteristics showed that Perfoost grafts had high plasticity. Mechanical stiffness allowed to use that material for substitution of marginal bone defects. Study in vitro showed high efficacy of cloning that was indirect evidence that demineralized allografts had osteoinductive properties. Between 19982002 at the Department of bone pathology for children and adolescents 121 patients, aged 118, with primary tumor, tumor-like diseases and systemic inherited skeleton pathology were operated on with Perfoost. Follow up period ranged from 1 years to 4 years 10 months. In vast bone defects demineralized allografts were used in combination with frozen cortical implants and metallosteosynthesis. Restoration of bone tissue was achieved in the period from 8 to 12 months. In patients with fibrous dysplasia who underwent extensive bone resection, the time of bone restoration increased by 16 months. Good and satisfactory results were observed in 98,3% of patients.
Experience in the treatment of skeletal trauma associated with craniocerebral injuries in children
Authors: Yakhyaev Y. M. , Gadzhimirzaev G. A.
Published: October 2020

Experience in treatment of 125 children with limb fractures combined with craniocerebral injuries is presented. Algorithm of diagnostic measures to improve the quality of diagnosis was elaborated. Seventy one patients (56.8%) were treated conservatively: 54 patients with skeletal traction,6 patients with adhesive plaster traction,11 with plaster of Paris traction. Fifty four patients (43.2%) underwent surgical treatment: 25 patients had intramedullar osteosynthesis,24 patients fixation of fragments by pins,5 patients by Ilizarov device. Long term results were assessed at 17 years follow-up. Results showed the efficacy of osteosynthesis in relation to skeletal traction. However, at early posttraumatic period when craniocerebral injury is extremely severe, surgical treatment should be limited by skeletal traction and plaster of Paris immobilization. Use of early osteosynthesis gives the decrease of hospitalization term by 7.8 day and fixation terms by 10.2 day.
Successful replacement of an infected bone defect in a child with a biocompatible composite material
Authors: Krasnoyarov G. A.
Published: October 2020

Treatment of post-traumatic osteomyelitis of long bones in children is a difficult task. Elimination of a purulent-necrotic focus, stabilization of bone fragments, and creation of optimal conditions for continued bone growth are the main factors in achieving a good anatomical and functional result [7]. The problem becomes much more complicated when, after the removal of large bone sequesters, a defect is formed that requires replacement.
Condition of Vertebral Arteries in Experimental Modelling of Low Cervical Vertebrae Dislocation
Authors: Vetrile S T , Yundin S V , Krupatkin A I , Kolesov S V , Ogarev E V , Vetrile S T , Yundin S V , Krupatkin A I , Kolesou S V , Ogarev E V
Published: October 2020

Condition of vertebral arteries in experimental modeling of cervical vertebrae dislocations at C3-C6 level was studied on 20 section-blocks of cervical spine. Vertebral arteries were contrasted and cervical block was fixed using external fixation device. Various types of dislocation and subluxation under X-ray control were produced. Thus, it was possible to observe dynamic picture of vertebral arteries deformation in traumatic cervical vertebrae dislocation. To confirm the results of angiography the cut up of frozen section-blocks in sagittal plane and in vertebral arteries projection as well as visual control (photography of vertebrae dislocation steps) were performed. Results of experimental study allowed to detect peculiarities of vertebral arteries deformations in cervical vertebrae dislocation and to determine the correlation between the degree of vertebrae dislocation and severity of extracranial vertebral artery deformation. It enables to predict the degree of hemodynamic disorders in the system of vertebral arteries, to determine the role of vascular factor in cervical spine injury and to use the differentional approach to the choice of treatment tactics using routine roentgenography.
New Means for Evaluation of Volumetric Microhemodynamics of Loco-Motor System Tissues with Laser Doppler Flowmetry
Authors: Krupatkin A I , Golubev V G , Panov D E , Merkulov M V , Yulov V V , V Sidorov V , Krupatkin А , Golubev V G , Panov D E , Merkulov M V , Yulov V V , Sidorov V V
Published: October 2020

Twenty eight volunteers and 46patients (18 with old complete anatomic rupture of n. medianus (CARN), 14 with intratrancal neuroma after failed priamary suture, 14 with partial anatomic nerve lesion (PANL)) were examined using laser doppler flowmetry (LDF) of fingers skin in red (R) and infrared (IR) diaposons and wavelet-analysis of oscillations of microvascular blood flow. Formulae for calculation of indicis of local volumetric total (VTBF), nutritious (NVBF), shunting (VSBF) microvascular cutaneous blood flow, resistence to blood inflow anf outflow, microvascular pressure were suggested. Reliable positive correlation of temperature with NVBF and VTBF in red diapason was shown. The advantages of volumetric LDF parameters in old CARN were demonstrated. In old CARH and In intratrancal neuroma the decrease of VTBF with deficit of NVBF was noted. Correlation between VTBF in red and infrared diaposons enabled to assess the distribution of cutaneous blood flow in vertical plane. This methods allows to detect the causes of nutritious blood flow disturbance and to choose the correction tecnique. The advantages of LDF-indicis are its uninvasiveness, innocuity, possibilities to perform dynamic control and obtain information.
Revascularizing and Decompressive Effect of Subchondral Spongiosotomy with Muscle Implantation in Deforming Gonarthrosis (Experimental Study)
Authors: Dubrovin G M , Kovalev P V , Dubrovin G M , Kovalyov P V
Published: October 2020

Spongiosotomy with implantation of the marginal portion of the m. tibialis anterior into the zone of trepanation foramen was suggested for the treatment of deforming arthrosis with hypertensive endosteal syndrome. To study revascularising and decompressive effect of the surgery experimental study in 28 dogs was performed. There three groups of animals, 8 dogs in each group: two first groups were control, third group - test one. Deforming gonarthrosis was reproduced in all animals. Animals from group II were subjected to subchondral spongiosotomy, dogs from group III - spongiosotomy with muscle implantation. The study of the intraosseous pressure dynamica and morphologic examination of microsamples confirmed the efficacy of the suggested method and allowed to recommend its use in clinical practice.
Total Hip Replacement in Severe Sequelae of Its Injury
Authors: Buachidze O Sh , Voloshin V P , Zubikov B C , Onoprienko G A , Martynenko D V , Buachidze O Sh , Voloshin V P , Zubikov V S , Onoprienko G A , Martynenko D V
Published: October 2020

Experience of the orthopaedic and trauma clinic of the Moscow Regional Scientific Research Clinical Institute in large joints replacement is presented. Hip replacement was performed to 458 patients with sequelae of the joint injury. Depending on the severity of hip joint injury all patients were subdivided into 2 groups. In the first group of patients joint replacement was performed by standard technique, in the second group of patients certain technical modifications were required. Use of special implant constructions and methods to supplement standard techniques was considered in relation to concrete anatomic and functional changes. The results of large joints replacement were successful in 96% of cases with maximum observation period of 21 years.
Reduction of Toxic Effect of Methyl Methacrylate on Human Cells in Culture Containing Sodium Hypochlorit
Authors: Eropkina E M , Mamaeva E G , Eropkin M Yu , Mashkov V M , Eropkina E M , Mamaeva E G , Eropkin M Yu , Mashkov V M
Published: October 2020

The effect of sodium hypochlorite (SH) upon toxic response of cultured human fibroblasts to methyl methacrylate (MMA) which is a part of bone cement «Polacris» has been studied. Toxic effect of MMA in clinically adequate concentrations demonstrated dose-dependant suppression of total activity of mitochondrial enzymes and that was one of the showings of stress at the cellular level. MMA:SH mixture in volume ratio 1:1 and 10:1 caused reliable reduction of toxic effect on cultured cells as compared with pure MMA of the similar concentration. On the contrary, MMA: SH mixture in volume ratio 1:10 resulted in true decrease of fibroblasts viability as compared with the state of cells in presence of pure MMA. Thus it was shown that chemical experimental in vitro inactivation of MMA could be achieved only when MMA concentration was either higher or equal to SA concentration. That provided the reduction of metabolic disturbances in cells.
Destruction of Implants after Extraosseous Osteosynthesis of Long Bones Fractures
Authors: Bondarenko A V , Peleganchuk V A , Pacnonova E A , Pechenin S A , Bondarenko A V , Peleganchuk V A , Raspopova E A , Pechenin S A
Published: October 2020

The results of treatment of 337 patients, aged from 15 to 75 years, with femur (175 patients), shin (41), arm (76) and forearm (45) fractures were analyzed. Open injuries were present in 42 (12,5%) and closed ones in 295 (87,5%) patients. According to AO classification type A fractures were diagnosed in 146 (43,3%), type В - in 103 (30,6%), type С - in 88 (26,1%) patients. In all patients osteosynthesis with plates and fixing screws was performed. In 37(11%) patients destruction of the implant took place. The dependence of that complication on the pattern of injury and type of fracture is detected: in open and comminuted fractures the rate of implant destruction was reliably higher. Mechanical destruction of the internal fixation system was presented by two variants: either break of a plate in the zone of the most intensive stress and a screw, or bone destruction in the site of screw insertion. In all cases of implant destruction the nonunion of fractures due to devitalization or absence of intermediate fragments was observed.
New Method for Posttraumatic Elbow Contracture Correction
Authors: Mironov S P , Tsykunov M B , Oganesyan O V , Seleznev N V , Eremushkin M A , Kuroles V K , Mironov S P , Tsykunov M B , Seleznev N V , Eremushkin M A , Kuroles V K
Published: October 2020

New method for elbow function restoration in posttraumatic contracture using apparatus complex «Raduga-CITO» is suggested. This complex enables to set, control and monitor the indicators of motion. Elaborated computer program provides accurate determination of articular angle values, the rate of articular ends movement, forces of articular surfaces interrelation by 6 main vectors and monitoring of these kinesiologic and dynamic patterns in real time. The program allows to determine adequate algorithm movement in elbow joint and thus to optimize the conditions for elbow function restoration in posttraumatic contractures. The method has been used in 17 patients with posttraumatic elbow contractures and good short term results have been achieved in all patients.
Use of "Material for Osteoplasty» in Pediatric Orthopaedics: Assessment of the Efficacy and Study of Biologic Processes
Authors: Malakhov O L , Belykh S I , Berchenko G N , Kozhevnikov O V , Saltykova V G , Ivanov A V , Malakhov O O , Krasnoyarov G A , Malakhov O A , Belykh S I , Berchenko G N , Kozhevnikov O V , Saltykova V G , Ivanov A V , Malakhov O O , Krasnoyarov G A
Published: October 2020

New composite «material for osteoplasty» was used for the treatment of 70 children, aged from 1.5 to 15 years, with various orthopaedic pathology. "Material" consists of defatted spongy and cortical-spongy bone matrix soaked with copolymer containing bioactive drugs as well as fetal bone tissue. Preliminary testing showed that the suggested implants were of high firmness. To assess the stimulating effect of "material for osteoplasty" upon the process of bone tissue reparative regeneration, monitoring of regional microcirculation by ultrasound Doppler mapping was used in complex with other methods. Osteoconductive and osteoinductive characteristics of the implants were observed in 76% of cases. The results of ultrasound Doppler mapping showed good correlation with the morphologic picture.
Use of «LitAr» Material for Substitution of Fingers and Forearm Bone Defects
Authors: Krasnov A F , Litvinov S D , Tseytlin M D , Kapishnikov A V , Krasnov A F , Litvinov S D , Tseitlin M D , Kapishnikov A V
Published: October 2020

Plastic hydroxyapatite collagenic material «LitAr» was used for the treatment of wrist and fingers bone defects in 23 patients. In 11 patients the defects resulted from degenerative dystrophic lesions and benign tumors, in 12 patients - posttraumatic genesis. Biotransformation of plastic material was controlled by X-ray and objective assessment was performed using computer analysis of X-ray films a posteriori. It was detected that lysis of composite «LitAr» took place within twenty days followed by substitution bone defect with newly formed bone structures. Newly formed bone met functional requirements of wrist and fingers.
Long-Term Results of Surgical Treatment for Benign Thoracic and Lumbar Spine Tumors in Adults
Authors: Balberkin A V , Morozov A K , Shavyrin D A , Balberkin A V , Morozov A K , Shavyrin D A
Published: October 2020

Oncologic and orthopaedics results of surgical treatment of 32 patients with benign tumors of the thoracic and lumbar spine were analyzed. Tumors were manifested by the following nosologic forms: hemangioma, giant cell tumor, osteoid osteoma, osteoblastoma. Follow up period was from 2 to 16 years, at the time of results evaluation all patients were alive. It was shown that the following factors were responsible for the impairment of treatment results: late diagnosis, surgical treatment at nonspecialized clinics, widely spread tumor, severe neurologic disorders, spine deformity in the postoperative period.
Reconstruction of Chest in Metastatic Lesion of Sternum
Authors: Burlakov A S , Makhson A N , Burlakov A S , Makhson A N
Published: October 2020

Technique of chest reconstruction after sternum resection in its metastatic lesion is presented. This technique includes three methods of reconstructive surgery. For pleura defect closure greater omentum on a vascular pedicle is used. Bony frame is reconstructed using special fast hardening plastic plates. These plates are produced during surgical intervention. Whole construction is covered by vascularized thoraco-dorsal muscular-cutaneous flap. The application of that technique enabled to successfully perform radical operation in 3 with severe metastatic lesions.
Stability of Injured Spine in Relation to Bending Loads under Conditions of Transpedicular Osteosynthesis (Experimental Study)
Authors: Afaunov A. A , Usikov V. D , Afaunov A. I , Dunaev I. M
Published: October 2020

Study of T9—L3 spinal segment blocks using anatomic preparations has showed that in instable injury of T12 the rigidity of T11—L1 segments under conditions of transpedicular osteosynthesis with four screws spinal system is on average 25% and 14.7% lower than the normal rigidity of the intact T11—L1 segments in relation to bending kyphotic loads and lateral bending loads, respectively. The rigidity of synthesized spinal segments to lateral bending loads is 1.9 times lower than the rigidity to sagittal bending loads. With use of metalwork the rigidity indices of the synthesized spinal segments are on average 1.2 times higher as compared with the rigidity of the intact spine.
Mechanism of Craniovertebral Ligamentous System Injuries and Their Effect on Spinal Arteries Blood Flow (Experimental Study)
Authors: Kolesov S. V
Published: October 2020

In 22 anatomic preparations of the cervical spine block various injuries of the ligamentous system were simulated and the evaluation of their effect upon the spinal arteries blood flow was per­formed. It has been shown that within craniovertebral segment the alar and transverse ligaments play the basic stabilizing role. Bending rotative, straightening rotative and bending mechanisms of injury may cause different volume of ligamentous system injuries. Three types of injuries have been detected: unilateral injury of the alar ligament, unilateral injury of the alar injury in combination with the transverse ligament injury and bilateral injury of the alar ligaments in combination with the transverse ligament injury. Injury of the upper cervical spine ligamentous structures results in the development of spine instability; especially in instability of atlantoaxial junction that causes dynamic compression of spinal arteries at atlantoaxial segment rotation.
Restoration of Active Extension of Fore­arm in Patients with Cervical Spinal Cord Injury at C5-C6 Level
Authors: Golubev V. G , Baskov A. V , Lisitskiy I. Yu , Boev M. V , Mershed Kh. I
Published: October 2020

Surgical reconstruction of upper extremity function in patients with high tetraplegia is presented. Five patients with sequelae of cervical spinal cord injury at C5-C6 level were operated on. Seven reconstructive operations were performed. Surgery consists of m. biceps brachii transposition to m. triceps brachii through the medial end of the humerus. First clinical experience is discussed.
Arterial Embolization in Patients with Tumors and Tumor-Like Diseases of Loco-Motor System
Authors: Mironov S. P , Balberkin A. V , Morozov A. K , Natsvlishvili Z. G , Kolondaev A. F , Khokhrikov G. I , Baranetskiy A. L , Buklemishev Yu. V
Published: October 2020

Reendovascular occlusion of pathologic vessels responsible for the blood supply of highly vascu­larized tumors of the femur, large pelvic bones, spine and tumor-like foci was used in 20 patients. High efficacy of the method was demonstrated. Marked reduction of the pathologic blood flow resulted in the decreased blood loss during organ saving operations for malignant tumors. Improvement of bone tissue structure in aneurismal cyst and pelvic bones hemangioma was accompanied by manifest positive clinical dynamics. At palliative treatment of patients with inoperable and metastatic tumors rapid and significant reduction of pain syndrome was noted.
Treatment for Gunshot Fractures of Upper Extremity Long Bones with Nerve Injuries
Authors: Evloev R. Yu , Reshetin В. N , Urazgildeev Z. I
Published: October 2020

The treatment results of gunshot fractures with nerve trunk injuries of upper extremity bones were summarized for the period from 1995 to 2000. Thirty patients had the injury at the level of humeral segment, 15 patients — at the level of forearm and 4 patients were with injuries of the elbow joint. The debridement and extrafocal osteosynthesis with early, i.e. 4 weeks after trauma, surgical interventions on bone fragments and nerve trunks were performed. In anatomically safe nerve trunk, neurolysis and bone fragment compression using special device were carried out. In nerve injury, resection of bone fragment ends with following stable osteosynthesis and perineural suturing of nerve was performed. In fractures of forearm bones with large defect of nerve trunk the autografting of nerve was done. In early postoperative period complex drug therapy was prescribed. After fracture healing physiotherapy, massage and exercise therapy was started. Long-term results showed that 82% of patients had positive outcomes. Duration of treatment using suggested tactics was shorter in comparison with traditional multy-step method.
Adhesive Disease of the Knee Joint
Authors: Kozhevnikov E. V
Published: October 2020

The study of anatomic specimens showed that in the knee joint synovial fluid moves along morphologically conditioned canals in both horizontal and vertical direction. Injuries and degenerative-dystrophic diseases cause the formation of adhesions in the canals («adhesive disease» of the knee joint). Arthroscopic examination of the knee joint revealed «adhesive disease» in 64 (17.3%) out of 370 examined patients. Arthroscopic resection or dissection of the adhesions resulted in the elimination of blockades, contractures and pain syndrome.