cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.20013457
title: Lenke 1 and 5: changes in sagittal balance

description: OBJECTIVE: To assess in a cross-sectional study whether there are changes in sagittal balance in patients with adolescent idiopathic scoliosis Lenke types 1 and 5 compared with patients without pathology of the spine and compare the values of the parameters of normal subjects with the parameters found in the literature. METHODS: We measured the values of the parameters of sagittal balance of 21 patients with scoliosis and 14 patients without scoliosis in panoramic radiographs or simply collected data previously measured from the medical records. We compared the mean values of normal subjects, the mean values found in the literature, and the means between normal subjects and patients with scoliosis. For this, we used the Student t test. RESULTS: Using a confidence interval of 5% (p &lt; 0.05) and the Student t test we obtained statistical significance in the comparison of two parameters of sagittal balance between normal subjects and patients with scoliosis. We observed similarities in the measurements of the average parameters of normal subjects with regard to the work already published. CONCLUSIONS: The adolescent idiopathic scoliosis causes changes in two parameters of sagittal balance with statistical significance but suggests changes in all other parameters. As for comparison with previously published work, the results were similar.
DOI: 10.6084/m9.figshare.20013457.v1
title: Lenke 1 and 5: changes in sagittal balance

description: OBJECTIVE: To assess in a cross-sectional study whether there are changes in sagittal balance in patients with adolescent idiopathic scoliosis Lenke types 1 and 5 compared with patients without pathology of the spine and compare the values of the parameters of normal subjects with the parameters found in the literature. METHODS: We measured the values of the parameters of sagittal balance of 21 patients with scoliosis and 14 patients without scoliosis in panoramic radiographs or simply collected data previously measured from the medical records. We compared the mean values of normal subjects, the mean values found in the literature, and the means between normal subjects and patients with scoliosis. For this, we used the Student t test. RESULTS: Using a confidence interval of 5% (p &lt; 0.05) and the Student t test we obtained statistical significance in the comparison of two parameters of sagittal balance between normal subjects and patients with scoliosis. We observed similarities in the measurements of the average parameters of normal subjects with regard to the work already published. CONCLUSIONS: The adolescent idiopathic scoliosis causes changes in two parameters of sagittal balance with statistical significance but suggests changes in all other parameters. As for comparison with previously published work, the results were similar.
DOI: 10.6084/m9.figshare.20013460
title: Lumbar alterations in magnetic resonance: correlation between Modic and Pfirrmann classifications

description: OBJECTIVE: To evaluate the relationship of sex and age with Modic and Pfirrmann classifications and verify the relationship between the two classifications in the group of patients studied. METHODS: 300 magnetic resonance scans (MRI) of the lumbar segment of the patients were evaluated; each lumbar segment (L1-L2, L2-L3, L3-L4, L4-L5 and L5-S1) was assessed according to Modic and Pfirrmann classifications. RESULTS: The type III of Pfirrmann was the most prevalent, whereas Modic was absent on most levels analyzed. The Modic signal was present mainly in the lower levels (L4-L5 and L5-S1) and in females. CONCLUSION: There is a strong correlation between the changes of the endplate and intervertebral discs, evidenced by changes in MRI. The relationship between Pfirrmann and Modic classifications is statistically higher the greater the disc degeneration.
DOI: 10.6084/m9.figshare.20013461
title: Standardization of dynamic RX for preoperative planning in adolescent idiopathic scoliosis

description: OBJECTIVE: To compare X-rays usually performed in supine with lateralization with those in lateral decubitus with fulcrum at the apex of the primary curve caused by cushion, in order to monitor the achievement of improvement patterns of correction in preestablished deformities for the preoperative surgical planning. METHODS: Comparison of radiographic studies in the preoperative supine with lateralization and lateral decubitus with cushion performing fulcrum at the apex of the major curve in patients with adolescent idiopathic scoliosis. RESULTS: Curves varied in AP between 76° e 40° and were corrected in supine with lateralization to the average of 21° observing that when carried out with fulcrum with cushion in lateral decubitus the curves were corrected to 15° on average with higher discrepancy in values among the most rigid curves. CONCLUSIONS: It was verified that on flexible curves the cushions did not produce satisfactory corrections in primary curves. In more rigid curves and in collaborative patients, greater effectiveness on the correction of deformity in main curves was obtained with cushions producing local fulcrum for a better preoperative planning on correction of deformities.
DOI: 10.6084/m9.figshare.20013461.v1
title: Standardization of dynamic RX for preoperative planning in adolescent idiopathic scoliosis

description: OBJECTIVE: To compare X-rays usually performed in supine with lateralization with those in lateral decubitus with fulcrum at the apex of the primary curve caused by cushion, in order to monitor the achievement of improvement patterns of correction in preestablished deformities for the preoperative surgical planning. METHODS: Comparison of radiographic studies in the preoperative supine with lateralization and lateral decubitus with cushion performing fulcrum at the apex of the major curve in patients with adolescent idiopathic scoliosis. RESULTS: Curves varied in AP between 76° e 40° and were corrected in supine with lateralization to the average of 21° observing that when carried out with fulcrum with cushion in lateral decubitus the curves were corrected to 15° on average with higher discrepancy in values among the most rigid curves. CONCLUSIONS: It was verified that on flexible curves the cushions did not produce satisfactory corrections in primary curves. In more rigid curves and in collaborative patients, greater effectiveness on the correction of deformity in main curves was obtained with cushions producing local fulcrum for a better preoperative planning on correction of deformities.
DOI: 10.6084/m9.figshare.20013466
title: Anticipation of vertebral pedicle breach through dynamic surgical guidance

description: OBJECTIVE: To determine the effectiveness of a pedicle probe to anticipate an impending breach and allow redirection during placement of a pilot pedicle hole. METHODS: Purposely four cortical wall sites were drilled: medial and lateral pedicle wall, and lateral and anterior wall of the vertebral body. The surgeon stopped probing when the sound changed, suggesting abutment against the cortical wall ("anticipation" of impending breach). A fluoroscopy image was then obtained. The surgeon then advanced the PediGuard through the cortex until the sound changed, indicating a breach. In the second part of the study three probes were used: 1) DSG (PediGuard) with curved tip with electronics ON; 2) DSG with electronics OFF; 3) standard Lenke probe. After the images were taken, the operating surgeon (blinded to x-rays) was instructed to redirect and continue drilling into the vertebral body. RESULTS: The surgeon accurately anticipated 60 of 75 (80%) of the breaches, 17 of 19 (89%) in the medial pedicle wall. In the second part of the study the DSG with electronics ON was superior to the DSG with electronics OFF as well as the standard Lenke probe (100% vs. 90% vs. 79%, p = 0.0191). CONCLUSION: Successful redirection by passing the pedicle probes into the vertebral body without a breach after anticipation of an impending pedicle wall breach occurred in 100% of the drillings when done with the DSG with the electronics ON vs only 84% when there was no electronic feedback.
DOI: 10.6084/m9.figshare.20013466.v1
title: Anticipation of vertebral pedicle breach through dynamic surgical guidance

description: OBJECTIVE: To determine the effectiveness of a pedicle probe to anticipate an impending breach and allow redirection during placement of a pilot pedicle hole. METHODS: Purposely four cortical wall sites were drilled: medial and lateral pedicle wall, and lateral and anterior wall of the vertebral body. The surgeon stopped probing when the sound changed, suggesting abutment against the cortical wall ("anticipation" of impending breach). A fluoroscopy image was then obtained. The surgeon then advanced the PediGuard through the cortex until the sound changed, indicating a breach. In the second part of the study three probes were used: 1) DSG (PediGuard) with curved tip with electronics ON; 2) DSG with electronics OFF; 3) standard Lenke probe. After the images were taken, the operating surgeon (blinded to x-rays) was instructed to redirect and continue drilling into the vertebral body. RESULTS: The surgeon accurately anticipated 60 of 75 (80%) of the breaches, 17 of 19 (89%) in the medial pedicle wall. In the second part of the study the DSG with electronics ON was superior to the DSG with electronics OFF as well as the standard Lenke probe (100% vs. 90% vs. 79%, p = 0.0191). CONCLUSION: Successful redirection by passing the pedicle probes into the vertebral body without a breach after anticipation of an impending pedicle wall breach occurred in 100% of the drillings when done with the DSG with the electronics ON vs only 84% when there was no electronic feedback.
DOI: 10.6084/m9.figshare.20013467
title: Fusion via transpsoas lateral approach: considerations and initial results

description: OBJECTIVE: To present some technical considerations about interbody fusion by direct lateral retroperitoneal transpsoas approach and its initial results. METHODS: Non-randomized prospective study of 14 patients undergoing interbody fusion via lateral approach, with evaluation of initial results and complications. RESULTS: We collected and analyzed data from 14 patients with a total of 27 levels operated. The average operative time was 146 minutes and blood loss was on average less than 50 ml. Ten patients required supplemental percutaneous fixation with pedicle screws. VAS scores for the lumbar region and lower limbs and ODI had significant improvement in the postoperative period. There was an associated case of postoperative infection and thromboembolism that required reoperations. CONCLUSION: This technique has revolutionized the care of patients requiring fusion of T6-7 to L4-5. Following the five basic steps and using intraoperative monitoring, this technique is safe and reproducible with encouraging clinical results and low rate of serious complications.
DOI: 10.6084/m9.figshare.20013467.v1
title: Fusion via transpsoas lateral approach: considerations and initial results

description: OBJECTIVE: To present some technical considerations about interbody fusion by direct lateral retroperitoneal transpsoas approach and its initial results. METHODS: Non-randomized prospective study of 14 patients undergoing interbody fusion via lateral approach, with evaluation of initial results and complications. RESULTS: We collected and analyzed data from 14 patients with a total of 27 levels operated. The average operative time was 146 minutes and blood loss was on average less than 50 ml. Ten patients required supplemental percutaneous fixation with pedicle screws. VAS scores for the lumbar region and lower limbs and ODI had significant improvement in the postoperative period. There was an associated case of postoperative infection and thromboembolism that required reoperations. CONCLUSION: This technique has revolutionized the care of patients requiring fusion of T6-7 to L4-5. Following the five basic steps and using intraoperative monitoring, this technique is safe and reproducible with encouraging clinical results and low rate of serious complications.
DOI: 10.6084/m9.figshare.20013469
title: Lumbopelvic fixation: a surgical alternative for lumbar stability

description: OBJECTIVE: Lumbopelvic fixation is a valid surgical option to achieving great stability in cases where it is particularly demanded, such as in patients with poor quality bone, degenerative scoliosis, and revision surgeries with modern materials and techniques. It enables simple integration of the iliopelvic systems with the rest of the spinal structure, maintaining hemorrhagia at acceptable levels, as well as surgery time. METHODS: We analyzed a case series of 15 patients of our center, who required major construction and/or presented poor quality bone. RESULTS: A total of 15 patients was studied, of which 12 (80%) were women and three (20%), men. Nine (60%) of these were revision surgeries, maintaining a surgery time of 5 hours (±1 h), with average blood loss of 1380 ml (±178 ml). All the patients received six to eight transpedicular screws, including iliac screws, and in all cases, a bone graft was inserted. CONCLUSION: Lumbopelvic fixation in patients with characteristics associated with osteopenia and osteoporosis, and in major instrumentations, particularly revision surgeries, three-dimensional correction is achieved, constructing a strong, stable pelvic base that is very useful, in patients with fragile surgical anatomy, for changes of implant or extensive decompression, provided the arthrodesis technique is adequate and with the insertion of a sufficient bone graft, and obviously, taking care to maintain the sagittal balance.
DOI: 10.6084/m9.figshare.20013469.v1
title: Lumbopelvic fixation: a surgical alternative for lumbar stability

description: OBJECTIVE: Lumbopelvic fixation is a valid surgical option to achieving great stability in cases where it is particularly demanded, such as in patients with poor quality bone, degenerative scoliosis, and revision surgeries with modern materials and techniques. It enables simple integration of the iliopelvic systems with the rest of the spinal structure, maintaining hemorrhagia at acceptable levels, as well as surgery time. METHODS: We analyzed a case series of 15 patients of our center, who required major construction and/or presented poor quality bone. RESULTS: A total of 15 patients was studied, of which 12 (80%) were women and three (20%), men. Nine (60%) of these were revision surgeries, maintaining a surgery time of 5 hours (±1 h), with average blood loss of 1380 ml (±178 ml). All the patients received six to eight transpedicular screws, including iliac screws, and in all cases, a bone graft was inserted. CONCLUSION: Lumbopelvic fixation in patients with characteristics associated with osteopenia and osteoporosis, and in major instrumentations, particularly revision surgeries, three-dimensional correction is achieved, constructing a strong, stable pelvic base that is very useful, in patients with fragile surgical anatomy, for changes of implant or extensive decompression, provided the arthrodesis technique is adequate and with the insertion of a sufficient bone graft, and obviously, taking care to maintain the sagittal balance.
DOI: 10.6084/m9.figshare.20013472
title: Vertebral fractures in patients treated for femur proximal third fractures

description: OBJECTIVE: To investigate the prevalence of fractures of the vertebral bodies in patients with femur proximal third fracture. METHODS: Cross-sectional study conducted at Hospital de Clínicas, Unicamp, SP, Brazil, between May and December 2012, which referred the patients with proximal femur fracture to radiographs of the spine. Fractures were evaluated according to number, severity and localization, applying the Genant index. RESULTS: Of the 15 subjects who completed the study, 14 had fractures of the vertebral bodies. The most commonly affected level was T8. There was no increased prevalence of fractures at the apex of the thoracic kyphosis and lumbar lordosis. CONCLUSION: There is strong epidemiological association between femur proximal third fractures and fractures of vertebral bodies caused by insufficiency.
DOI: 10.6084/m9.figshare.20013472.v1
title: Vertebral fractures in patients treated for femur proximal third fractures

description: OBJECTIVE: To investigate the prevalence of fractures of the vertebral bodies in patients with femur proximal third fracture. METHODS: Cross-sectional study conducted at Hospital de Clínicas, Unicamp, SP, Brazil, between May and December 2012, which referred the patients with proximal femur fracture to radiographs of the spine. Fractures were evaluated according to number, severity and localization, applying the Genant index. RESULTS: Of the 15 subjects who completed the study, 14 had fractures of the vertebral bodies. The most commonly affected level was T8. There was no increased prevalence of fractures at the apex of the thoracic kyphosis and lumbar lordosis. CONCLUSION: There is strong epidemiological association between femur proximal third fractures and fractures of vertebral bodies caused by insufficiency.
DOI: 10.6084/m9.figshare.20013473.v1
title: Incidence and functional evolution of traumatic injuries of the spine

description: OBJECTIVE: To determine the incidence and functional outcome of traumatic injuries of the spine in the period from January 1, 2013 to December 31, 2013, at the General Hospital "Dr. Rafael Pascacio Gamboa", state of Chiapas, México. METHODS: A retrospective, cross-sectional, descriptive, observational study, where all patients seeking medical and surgical care in the emergency department and inpatient unit for a traumatic spinal injury were included, regardless of age or sex. RESULTS: A sample of 60 patients, of whom 43 were male (71.7%) and 17 females (28.3%), with an average age of 35 was obtained. As for the cause of the injury, falls were the leading cause (61.7%) followed by motor vehicle accidents (35%) and finally, assaults (3.3%). In this sample, 21% had associated injuries being the most common (7.3%) the thoracic trauma. The most common site of injury was the thoracic spine, followed by the lower cervical and finally the thoracolumbar ones. We found that 70% of patients had partial or complete neurological injury, with complete spinal cord transection (Frankel A) being the most frequent lesion in 53%. CONCLUSION: The incidence in our series is similar that the reported in developing countries which have sociocultural problems similar to ours. The same applies to the etiology of these lesions, which is closely linked to social and economic activity in each country or region.
DOI: 10.6084/m9.figshare.20013473
title: Incidence and functional evolution of traumatic injuries of the spine

description: OBJECTIVE: To determine the incidence and functional outcome of traumatic injuries of the spine in the period from January 1, 2013 to December 31, 2013, at the General Hospital "Dr. Rafael Pascacio Gamboa", state of Chiapas, México. METHODS: A retrospective, cross-sectional, descriptive, observational study, where all patients seeking medical and surgical care in the emergency department and inpatient unit for a traumatic spinal injury were included, regardless of age or sex. RESULTS: A sample of 60 patients, of whom 43 were male (71.7%) and 17 females (28.3%), with an average age of 35 was obtained. As for the cause of the injury, falls were the leading cause (61.7%) followed by motor vehicle accidents (35%) and finally, assaults (3.3%). In this sample, 21% had associated injuries being the most common (7.3%) the thoracic trauma. The most common site of injury was the thoracic spine, followed by the lower cervical and finally the thoracolumbar ones. We found that 70% of patients had partial or complete neurological injury, with complete spinal cord transection (Frankel A) being the most frequent lesion in 53%. CONCLUSION: The incidence in our series is similar that the reported in developing countries which have sociocultural problems similar to ours. The same applies to the etiology of these lesions, which is closely linked to social and economic activity in each country or region.
DOI: 10.6084/m9.figshare.20013475
title: Reproducibility analysis of the stability and treatment of vertebral metastatic lesions

description: OBJECTIVES: To investigate the reproducibility among spine surgeons in defining the treatment of vertebral metastatic lesions, taking into account the mechanical stability of injuries. METHODS: Twenty cases of isolated vertebral metastatic lesions were presented to ten experts. Their opinion was then asked about the stability of the lesion, as well as their treatment option. RESULTS: The interobserver Kappa coefficient obtained both for stability analysis as to the decision of the treatment was poor (0.334 and 0.248, respectively). CONCLUSIONS: Poor interobserver reproducibility was observed in deciding the treatment of vertebral metastatic lesions when considering the stability of the lesions.
DOI: 10.6084/m9.figshare.20013475.v1
title: Reproducibility analysis of the stability and treatment of vertebral metastatic lesions

description: OBJECTIVES: To investigate the reproducibility among spine surgeons in defining the treatment of vertebral metastatic lesions, taking into account the mechanical stability of injuries. METHODS: Twenty cases of isolated vertebral metastatic lesions were presented to ten experts. Their opinion was then asked about the stability of the lesion, as well as their treatment option. RESULTS: The interobserver Kappa coefficient obtained both for stability analysis as to the decision of the treatment was poor (0.334 and 0.248, respectively). CONCLUSIONS: Poor interobserver reproducibility was observed in deciding the treatment of vertebral metastatic lesions when considering the stability of the lesions.
DOI: 10.6084/m9.figshare.20013478.v1
title: Treatment of vertebral pathological fractures by percutaneous vertebroplasty

description: OBJECTIVE: To evaluate a consecutive series of patients undergoing vertebroplasty for pain control, according to results and complications in the short and medium follow-up. METHODS: Retrospective analysis of medical records of 26 patients undergoing vertebroplasty from January 2007 to December 2010. Patients were evaluated by the questionnaire of assessment of low back pain (Oswestry Index) and the visual analog pain scale (VAS) on the day before surgery, on the second day and 12 months after the procedure. RESULTS: Significant improvement of pain symptoms within 48 hours after surgery was reported in 22 patients (91.6%), two patients (8.32%) showed moderate improvement. Of the 22 patients with significant pain relief, 21 (95.4%) maintained the benefit and one (4.6%) had intense pain (new fracture in the body of L1) at a mean follow up of 12 months. Regarding the Oswestry Index, preoperative average was 52.9%. On the second day and 12 months after surgery this average was 23.6% and 24.5%, respectively; good results according to this index. Two patients were excluded from the study due to incomplete medical records. CONCLUSION: Despite the small sample size and short follow-up, the results of vertebroplasty were effective for the relief of pain symptoms and were safe as regards the risks of complications.