cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.14289020
title: SPLIT-TYPE FRACTURES OF THE SPINE: A NEW MINIMALLY INVASIVE PERCUTANEOUS TECHNIQUE

description: ABSTRACT Objective: This research presents a biomechanical analysis performed in the lumbar spine of a porcine animal model, considering a minimally invasive technique for the treatment of split fractures. Methods: Porcine spines were used to perform compression tests, considering three different approaches. Three groups were defined in order to verify and validate the proposed technique: a control group (1); spines with split fractures (2); and a treatment group (3). For the first group (control), spines were axially compressed until any kind of fracture occurred, in order to verify the strength of the structure. In the second group, split fractures were created to obtain the mechanical failure pattern of the model. In the third group, the split fractures were submitted to the proposed treatment, to verify the resistance achieved. The three groups were compared by means of axial compression tests. Statistical analysis was performed by ANOVA. Results: The control group (intact spine) and the treated split fracture group presented similar results (p&gt;0.05), differing from the results for the untreated split fracture group (p&lt;0.05). Conclusions: The tests performed in order to determine the behavior and strength of the lumbar spine when subjected to axial compression provided positive data for the development of a minimally invasive technique capable of restoring split fractures of the spine. Level of evidence III; Experimental research.
DOI: 10.6084/m9.figshare.14289018
title: IMPORTANCE OF RADIOGRAPHY IN ORTHOSTATISM IN THE CONDUCT OF THORACOLOMBAR TRANSITION FRACTURES

description: ABSTRACT Objective: To evaluate the importance of radiography in the orthostatic position in the initial assessment of patients with thoracolumbar transition fractures and whether this image changes the surgical indication. Methods: Medical records and imaging tests of patients treated for thoracolumbar transition fractures from June 2018 to June 2019 were evaluated. Trauma patients between 18 and 60 years of age with fractures of T10 to L3 who had been indicated for conservative treatment were included. Cases of fractures considered unstable were excluded. Radiographs were taken with the patient in the supine position (supine X-ray), computed tomography (CT), and orthostatic radiography (orthostatic X-ray). Segmental kyphosis and degree of wedging were evaluated. The measurements were compared using the Wilcoxon test. The McNemar test was used to assess changes in conduct according to the criteria for surgical indication (kyphosis ≥ 25 ° and wedging ≥ 50%). Results: Fifty patients were evaluated, nine of whom (18%) were indicated for a change of conduct according to the orthostatic examinations and were submitted to surgical treatment. Vertebral kyphosis increased by 40.6% (p &lt;0.001). The wedging increased by 25.62% (p &lt;0.0001). Conclusion: Eighteen percent of the total number of patients who did not present instability criteria in radiographs in the supine position satisfied at least one of these criteria when the orthostatic X-ray was performed. Level of evidence 3B; Retrospective case series study.
DOI: 10.6084/m9.figshare.14289017
title: INTEROBSERVER REPRODUCIBILITY ASSESSMENT OF THE NEW AOSPINE CLASSIFICATION FOR SUBAXIAL CERVICAL LESIONS

description: ABSTRACT Objective: To evaluate the interobserver agreement of the new AOSpine classification for subaxial cervical fractures. Methods: A descriptive study, which11 traumatic lesions of the subaxial cervical spine (through radiographic and tomographic images), were evaluated by 16 observers being: 6 senior surgeons, 4 fellows in spinal surgery and 6 physicians residents in Orthopedics and Traumatology by the new AOSpine classification, with subsequent statistical analysis of the results. An agreement analysis was performed using the Kappa coefficient, both individually and in combination, with an interpretation of the index performed using the standardized model for Landis and Koch. To determine the level of significance of the analyzes, values less than 0.05 were considered statistically significant. Results: In general, the level of agreement among the examiners was considered reasonable. The lesions “A0 (F3)”, “A4 (F3)”, “B1”, “B3”, “B3 (F3)”, “C”, “C (F3)” and “F3”showed a low level of agreement between the examiners. The level of reasonable agreement was obtained between fractures “A0”, “A1”, “A4”, “B2” and “C (F4)”. The only fracture that presented a moderate level of agreement was the “C (F4 BL)” lesion. This result indicates that the referred injury was the fracture of the subaxial column that presented the best level of agreement among the 16 examiners in the present study. Conclusions: The results of the study indicate an intermediate agreement of the new AOSpine classification for subaxial cervical lesion and point to the need to carry out studies that seek to evaluate this new classification in order to better evaluate its strengths and weaknesses, contributing for its improvement. Level of evidence III; Diagnostic study - investigation of a diagnostic test.
DOI: 10.6084/m9.figshare.14289013
title: NONSPECIFIC SPONDYLODISCITIS IN ADULTS: RETROSPECTIVE STUDY

description: ABSTRACT Objective To describe the epidemiological and clinical characteristics of patients with pyogenic spondylodiscitis treated in a Brazilian hospital. Methods This is a retrospective study of patients diagnosed with nonspecific spondylodiscitis. Patients of both sexes, above 18 years of age with a minimum follow-up time of 6 months were included. Epidemiological, laboratory, and clinical data were analyzed. Results Nine patients were included. The mean age was 64 years, with seven men (77.7%) and two women (22.2%). All patients evaluated had back pain. The most affected location was the lumbar spine (44.4%). Only three patients (33.3%) had fever and five (55%) had constitutional symptoms. The mean duration of symptoms before diagnosis was 2.5 (± 1.5) weeks. Only four patients (44.4%) had positive cultures. As for neurological status, five patients (55.5%) presented neurological change. At the end of treatment, two patients improved one level in the Frankel score and two patients improved two levels. The main indication for surgery was neurological deficit (55.5%). Two of the patients evaluated died as a result of an infectious condition. Conclusions Less than half of the patients with pyogenic spondylodiscitis had fever or constitutional symptoms. Back pain was present in all cases. In less than half of the patients it was possible to isolate the responsible microorganism. Most patients underwent surgical treatment, although not all improved from the neurological deficit. Level of evidence II; Retrospective study.
DOI: 10.6084/m9.figshare.14289011
title: IMPACT OF THE GRADE OF DEGENERATIVE LUMBAR DISEASE ON THE OCCURRENCE OF SPINAL DEFORMITY

description: ABSTRACT Objective: To evaluate the impact of the severity of degenerative lumbar disease (DLD) on the occurrence of spinal deformity, as well as on the choice of treatment, whether conservative or surgical. Methods: This is a retrospective analysis of a prospective database. One hundred and thirty patients with low back pain and/or pain radiating to the lower limbs were included in the study and were graded on a DLD scale that considers total spine (panoramic) X-ray findings. The rates of adult spinal deformity (ASD) for the different degrees of the DLD scale were compared using the Chi-square test. The choice of treatment type, conservative or surgical, was also compared among the degrees of the DLD scale using Fisher's exact test. Results: The ASD rate was zero in grade 0 patients, 24% in grade I, 35% in grade II and 44% in grade III (P = 0.02). Grade III patients were more likely to be diagnosed with ASD (OR = 2.22; P &lt;0.05; 95% CI = 0.90-5.45) compared to the other DLD grades. Only 7.7% of the patients were chosen for surgical treatment and there was no difference by the DLD scale grade. Conclusion: There was correlation between the DLD grading scale and the occurrence of ASD, with at least twice the chance of this diagnosis in DLD scale grade III as compared to the other grades. The treatment of choice was conservative in a very small number of patients analyzed, with no difference between the different grades of the DLD grading scale. Level of Evidence III; Retrospective analysis of prospective database (cohort).
DOI: 10.6084/m9.figshare.14289009
title: ADAPTATION AND TRANSCULTURAL VALIDATION OF THE BRAZILIAN VERSION OF THE BACK PAIN FUNCTIONAL SCALE

description: ABSTRACT Objective: The Back Pain Functional Scale (BPFS) was designed to evaluate the functional state of individuals with low back pain. The scale consists of twelve items, covering functional aspects of the daily life activities of these individuals. The final score is calculated by summing the responses to each item, the values of which range from 0 to 5, obtaining a total result of 0 to 60 points. Methods: The validation process was developed in accordance with the World Health Organization (WHO) protocol, covering translation, back translation, semantic equivalence, evaluation by specialists from previous stages, pre-test of the tool, and final version. Subsequently, the final version was applied in a sample of 90 individuals and the data obtained were subjected to descriptive statistical analysis, factorial analysis, evaluation of internal consistency, and correlation with other validated tools. Results: The tool was adapted to Brazilian Portuguese, making use of terms to approximate the language of everyday expressions. The final version presented results similar to those from the original version, as demonstrated by the factorial analysis, the internal consistency (Cronbach's alpha: 0.990), and the strong correlation with tools validated for the Portuguese language. Conclusion: The Brazilian version of BPFS proved to be easy to apply and understand, and presented high internal consistency and construct validity similar to that of the original instrument. Level of evidence 1B; Study of adaptation of a valid score.
DOI: 10.6084/m9.figshare.14289008
title: CORRELATION BETWEEN CHRONIC LOW BACK PAIN AND FEMALE SEXUAL FUNCTION

description: ABSTRACT Objective To correlate chronic low back pain with female sexual function. Methods This is a cross-sectional study. Thirty-two women aged between 18 and 44 years old, with body mass index (BMI) between 18.5 kg/m2 and 29.9 kg/m2, with a medical diagnosis of chronic low back pain and sexually active in the last six months were selected. The patients underwent a physical therapy evaluation and responded to two questionnaires: the Roland-Morris Disability Questionnaire and the Female Sexual Quotient (QS-F). Pearson’s correlation test was used to assess the impact of chronic low back pain on sexual activity. Results The mean age was 30.31 years old (±.7.10) and the mean BMI was 24.54 Kg/m2 (±3.06). The mean Roland-Morris Disability Questionnaire score was 5.2 ( ± 3.28), indicating that the patients did not have significant disability. The mean QS-F score was 60.37 (±14.48), classified as “unfavorable to normal”. The correlation test showed a low correlation between chronic low back pain and female sexual function (r = 0.027). Conclusion There was a low correlation between chronic low back pain and female sexual function in the study population, but the moderate correlation between the “comfort” domain and the Roland-Morris Disability Questionnaire score was significant. Level of evidence II ; Cross-sectional clinical study.
DOI: 10.5281/zenodo.4633898
title: CESM climatological 2D ocean forcing gx1

description: Forcing file derived from CESM-LE pi control run (Kay et al. 2015). Monthly mean climatological Q-flux and mixed-layer depth for slab ocean model runs (oceanmixed_ice = .true.) Metadata available from ncdump -h.
DOI: 10.6084/m9.figshare.14289005
title: CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS

description: ABSTRACT Objective To present a new principle for correction of the sagittal plane of the spine through the convergent or divergent placement of monoaxial pedicle screws in this plane, associated with compression or distraction, to provide lordotizing or kyphotizing leverage force. Method A statistical mechanical study of twenty-eight fixations in synthetic spine segments was performed. In fifteen pieces, pedicle screws were applied to the ends of the segments with positioning convergent to the center of the fixation. They were attached to the straight rods and subjected to compression force. The other thirteen segments were fixed with pedicle screws in a direction divergent to the center of the fixation, attached to the straight rods, and subjected to distraction force. Results To create kyphosis in the 15 synthetic segments of the spine, the mean pre-fixation Cobb angle was - 0.7° and the mean post-fixation angle was +15°. To create lordosis in the 13 segments, the mean pre-fixation Cobb angle was +1° and the mean post-fixation angle was +18°. The difference was confirmed by statistical mechanical tests and considered significant. However, there is no relevant difference between the mean angles for lordosis and kyphosis formation. Conclusions It was concluded that the correction of the sagittal plane of the spine by applying the new instrumentation method is efficient. A statistical mechanical test confirmed that the difference in Cobb degrees between pre- and post-fixation of the synthetic spine segments was considered significant in the creation of both kyphosis and lordosis. Level of evidence II C; Statistical mechanical study of synthetic spine segments.
DOI: 10.6084/m9.figshare.14289004
title: CLINICAL ANALYSIS OF PATIENTS WITH LOW BACK PAIN IN THE EMERGENCY DEPARTMENT

description: ABSTRACT Objective To describe the daily practice in an emergency service and to provide relevant data for future studies about the treatment of low back pain from the perspective of emergency medicine. Methods Analysis of hospital records and review of medical records. Results 2,434 patients were attended between January 1 and December 31, 2017 with the complaint of low back pain. Radiographs of the spine were performed in 15.7% of patients and computerized tomography scans in 7.6%. Eighty-five patients required hospitalization, with a mean hospital stay of 8.3 days. The rate of use was 52.7% for tricyclic or antiepileptic drugs and 12% for strong opioids among hospitalized patients. Conclusions A high prevalence of low back complaints was observed in the emergency care service (4.6% of total emergency room visits during the year), with low hospitalization potential. The rates of hospitalization and tomographic examinations were higher than those observed in similar studies, with a lower proportion of radiograph and strong opioid use as compared with the same studies. The paucity of national and international data for more in-depth comparisons makes clear the need for further studies and development of new recommendations specifically targeting this subset of patients. Level of evidence IV; Prognostic studies.
DOI: 10.6084/m9.figshare.14289002
title: A COMPARISON OF THE TOMITA AND TOKUHASHI SCORES IN SPINAL METASTASIS

description: ABSTRACT Objective To compare Tokuhashi and Tomita scores in patients with epidural spinal metastasis who underwent surgical treatment. Methods A retrospective evaluation of 103 patients with spinal metastasis and epidural compression who underwent surgical treatment. An analysis was performed of agreement between the survival rates observed in the study sample and the survival rate estimated by the Tomita and Tokuhashi scales. Results The overall accuracy was 39.03% for the Tomita scale and 61.75% for the Tokuhashi scale. Fair agreement (0.38 weighted Cohen’s Kappa coefficient) was observed between patient survival and the Tokuhashi score, and slight agreement (0.25 weighted Kappa coefficient) for the Tomita score. The agreement for both scales was higher for patients with less than six months’ survival, with general accuracy of 79.17% for the Tomita and 70.59% for the Tokuhashi scoring system. Conclusion There was fair and slight agreement between the Tokuhashi and Tomita scores with patient survival group. The agreement was higher for patients with less than six months’ survival. Level of evidence III; Comparative retrospective study.
DOI: 10.6084/m9.figshare.14288997
title: EVALUATION OF LOW BACK PAIN IN PATIENTS WHO UNDERWENT BARIATRIC SURGERY

description: ABSTRACT Objective Low back pain is an extremely common condition that can affect up to 84% of people at some point in life. It affects patients of both sexes, mainly between 30 and 50 years of age, and has a great impact on the quality of life, in addition to placing a significant demand on health services. Obesity is considered as an important risk factor for the development of low back pain since the change in body fat distribution causes changes in the locomotor system and especially in the spine. Methods The study makes a comparative, retrospective analysis of patients who underwent bariatric surgery through questionnaires to assess the improvement in their quality of life and low back pain. The data were submitted to a statistical analysis and the results compared to the literature data. Results As a result, there was a statistically significant improvement in quality of life in relation to weight loss; the greater the weight reduction, the better the quality of life and the younger the patient, the better their quality of life. Conclusions When asked about low back pain, 70.7% of patients classified it as moderate to severe. Level of evidence III; Comparative retrospective.
DOI: 10.6084/m9.figshare.14288996
title: MINIMALLY INVASIVE LUMBAR ARTHRODESIS AND PERCUTANEOUS PEDICLE SCREWS: A SYSTEMATIC REVIEW

description: ABSTRACT A systematic review of the literature was performed in order to organize, evaluate, and select evidences available about the safety and efficacy of minimally invasive percutaneous arthrodesis with percutaneous pedicle screws in the treatment of patients with degenerative disc disease (and other spinal pathologies) as compared to conventional arthrodesis. PubMed, EMBASE and Cochrane Library databases were consulted to locate clinical trials and case reports/case series published in English between 2014 and 2019. After selection according to the inclusion/exclusion criteria, 21 of the 197 articles identified were chosen for a complete reading and used for the present review. Although the level of evidence of most of the studies included made the demonstration of efficacy and superiority among the surgical techniques reviewed difficult, the findings related to the minimally invasive procedure indicate a safe and reliable approach for the treatment of lumbar diseases. Level of evidence II; Systematic review of literature.
DOI: 10.6084/m9.figshare.14288994
title: AGGRESSIVE VERTEBRAL HEMANGIOMAS – CASE SERIES AND LITERATURE REVIEW

description: ABSTRACT Objectives To present a series of aggressive hemangiomas of the institution, with a review of the management options described in the literature. Methods This is a retrospective survey of aggressive vertebral hemangiomas treated by the service in the last 10 years, with histological confirmation of the diagnosis and a minimum follow-up of 1 year. The case analysis and literature review were conducted with emphasis on treatment options for these injuries. Results Seven cases were found, three with pain and four with severe neurological deficits. Two patients were treated with open decompression, one with open decompression and cementation, one with open decompression and arthrodesis, one with biopsy and cementation, one with percutaneous biopsy, and one with open biopsy followed by decompression surgery. All patients underwent radiotherapy. There was a significant regression of presentation deficits, but one patient developed an irreversible deficit during treatment. There were no recurrences or late complications in the follow-up period. Conclusions Surgical decompression in patients with significant neurological deficit is a point of consensus in the literature. Subtotal resection followed by radiation therapy was effective in treating deficits and controlling pathology. Cases manifesting pain only can be managed with minimally invasive techniques, whether or not they are followed by radiotherapy. Level of evidence IV; Therapeutic study of case series.
DOI: 10.6084/m9.figshare.14288993
title: FACET JOINT DEGENERATION IN PATIENTS WITH LUMBAR DISC HERNIATION AND PROBABLE DETERMINING FACTORS

description: ABSTRACT Objective To evaluate facet joint degeneration following surgical treatment in patients with lumbar disc herniation, seeking to correlate it with possible determining factors. Methods Cross-sectional observational study, which analyzed medical records, radiographs and magnetic resonance images of 287 patients with lumbar disc herniation treated surgically at the Spine Surgery Service of the Hospital Ortopédico de Passo Fundo. Information about age and sex was collected. In the imaging exams, the following variables were evaluated: facet joint angulation and its tropism, measured by the Karacan method, sacral slope and lumbar lordosis, measured by the Cobb method, arthrosis of the interfacetary joints, measured by the Weishaupt classification, and intervertebral disc degeneration, measured by the Pfirrmann classification. Results A statistically significant relationship was observed between facet joint degeneration and age (p = 0.002), and also between facet joint degeneration and sacral slope (p = 0.038). No correlation was found between facet joint degeneration and lumbar lordosis (p = 0.934). It was found that the most degenerated facet joints were those that had the greatest facet joint asymmetry (tropism). However, the mean degree of facet tropism did not increase homogeneously with the progression of the joint degeneration score (p = 0.380). Conclusion It was verified that there are, in fact, a multiplicity of factors related to the degree of facet joint degeneration in the low lumbar spine. Additional studies, correlated with the asymmetry of the facet joints, would be important to elucidate better preventive management of this degeneration, aiming to avert secondary low back pain and sciatica with advancing age. Level of evidence II; Retrospective study.