cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.20013949.v1
title: LOSS OF CORRECTION AFTER VERTEBRECTOMY FOR TREATMENT OF SPINAL DEFORMITIES

description: ABSTRACT Objective: To evaluate the loss of correction after treatment of spine deformities with the technique of isolated posterior vertebrectomy. Methods: Twenty-one patients were followed-up for three years after surgery with panoramic X-rays, CT scans, SF-36 and Oswestry questionnaires. We evaluated the loss of correction, CAGE subsidence and the evolution of the pelvis-T1 angle during follow-up. The correlation among the radiographic changes and functional and quality of life scores was also assessed. Results: All patients had some degree of loss of correction and subsidence of CAGE, especially in the first year of follow-up. Such losses exerted negative impact on the function, pain and self-image of the patients. Factors such as the stiffness of the fusion mass and size of implant used appear to have contributed to the occurrence of subsidence, regardless of age and bone mineral density. Conclusions: The use of spacers with larger cross-sectional diameter and more rigid rods can reduce the overloading on the anterior column of Denis, reducing the subsidence and loss of correction. Additional stabilization strategies such as the use of orthoses postoperatively can also be useful, and should be evaluated in subsequent studies.
DOI: 10.6084/m9.figshare.20013950
title: POSTURAL PROFILE OF CLASSICAL BALLERINAS FROM THE VALE DO SÃO FRANCISCO REGION OF BRAZIL

description: ABSTRACT Objective: The study aimed to determine the association between postural changes and practice of classical ballet among ballerinas from Integrated Administrative Region of Development (RIDE) in Polo Petrolina/PE and Juazeiro/BA. Methods: Cross-sectional observational study with 19 classical ballerinas aged over 15 years and at least 5 years of uninterrupted classical ballet practice. The anthropometric assessment included measurements of total body mass, height and body mass index (BMI). Postural evaluation was performed using the photogrammetric method with help of Posturograma(r) and SAPO(c) software. Results: The mean age was 25.3±11.7 years and the mean BMI was 21.4±2.9 kg/m². Approximately 74% of classical ballerinas had normal anthropometric profile. The postural profile of the classical ballerinas showed inclination and protrusion of the head, trunk rotation, rectification of cervical lordosis, increased thoracic kyphosis, increased lumbar lordosis, pelvic inclination and anteversion. Conclusion: The practice of ballet led to changes in body alignment of the classical ballerinas evaluated. The results points out to the need of postural re-education in order to contribute for the kinetic-functional balance of classical ballet practitioners.
DOI: 10.6084/m9.figshare.20013953
title: COMPUTED TOMOGRAPHY MORPHOMETRIC ANALYSIS OF THE VERTEBRAE C7 AND T1

description: ABSTRACT Objective: The anatomical study of the vertebrae C7 and T1 of the cervicothoracic junction aimed to evaluate quantitatively, by axial computerized tomography (CT), the linear and angular dimensions of the anatomical laminae of the vertebrae of the cervicothoracic junction C7 and T1 in adults over 18 years. Methods: We retrospectively analyzed 49 CT of the cervical and thoracic spine (C7 and T1) of individuals over 18 years, of both sexes. We also evaluated the length and thickness of the laminae, as well as spinolaminar angle in axial sections of C7 and T1 at the point of least thickness between the inner cortical layers. The variables were correlated with age groups and sex of the individuals. Statistical analysis was performed using the t test and the results were considered significant when p&lt;0.05. Results: After analyzing tomographic measurements of 49 patients, it was found that men had greater laminae thickness than women, both in C7 and T1, with 71% of C7 laminae and 92% of T1 laminae thicker than 5mm, and 97% of C7 laminae and 100% of T1 thicker than 4mm. The mean spinolaminar angle was 56.40 degrees in C7 and 57.31 degrees in T1. Conclusion: This study brings important anatomical information about the cervicothoracic junction C7 and T1 in the Brazilian population, showing that fixation of C7 and T1 with intralaminar screws is anatomically possible.
DOI: 10.6084/m9.figshare.20013953.v1
title: COMPUTED TOMOGRAPHY MORPHOMETRIC ANALYSIS OF THE VERTEBRAE C7 AND T1

description: ABSTRACT Objective: The anatomical study of the vertebrae C7 and T1 of the cervicothoracic junction aimed to evaluate quantitatively, by axial computerized tomography (CT), the linear and angular dimensions of the anatomical laminae of the vertebrae of the cervicothoracic junction C7 and T1 in adults over 18 years. Methods: We retrospectively analyzed 49 CT of the cervical and thoracic spine (C7 and T1) of individuals over 18 years, of both sexes. We also evaluated the length and thickness of the laminae, as well as spinolaminar angle in axial sections of C7 and T1 at the point of least thickness between the inner cortical layers. The variables were correlated with age groups and sex of the individuals. Statistical analysis was performed using the t test and the results were considered significant when p&lt;0.05. Results: After analyzing tomographic measurements of 49 patients, it was found that men had greater laminae thickness than women, both in C7 and T1, with 71% of C7 laminae and 92% of T1 laminae thicker than 5mm, and 97% of C7 laminae and 100% of T1 thicker than 4mm. The mean spinolaminar angle was 56.40 degrees in C7 and 57.31 degrees in T1. Conclusion: This study brings important anatomical information about the cervicothoracic junction C7 and T1 in the Brazilian population, showing that fixation of C7 and T1 with intralaminar screws is anatomically possible.
DOI: 10.6084/m9.figshare.20013952
title: DYNAMIC MAGNETIC RESONANCE IMAGING: PRELIMINARY PRESENTATION OF A TECHNIQUE

description: ABSTRACT Objective: To evaluate morphometric variations of the cervical spine in patients with cervical spondylotic myelopathy (CSM) using dynamic magnetic resonance imaging (MRI) in neutral, flexion and extension positions. Methods: This is a prospective study of patients with CSM secondary to degenerative disease of the cervical spine. The morphometric parameters were evaluated using T2-weighted MRI sequences in the sagittal plane in neutral, flexion and extension position of the neck. The parameters studied were the anterior length of the spinal cord (ALSC), the posterior length of the spinal cord (PLSC), the diameter of the vertebral canal (DVC) and the diameter of the spinal cord (DSC). Results: The ALSC and PLSC were longer in flexion than in extension and neutral position, with statistically significant difference between the flexion and extension position. The DVC and the DSC were greater in flexion than in extension and neutral position, however, there was no statistically significant difference when they were compared in the neutral, flexion and extension positions. Conclusion: Dynamic MRI allows to evaluate morphometric variations in the cervical spinal canal in patients with cervical spondylotic myelopathy.
DOI: 10.6084/m9.figshare.20013955
title: TRANSFORAMINAL CERVICAL NERVE ROOT BLOCK: OUTCOMES AND COMPLICATIONS

description: ABSTRACT Objectives: To investigate the effect and complications after transforaminal injection for cervicobrachialgia caused by cervical disc herniation. Methods: We retrospectively reviewed all patients undergoing fluoroscopy-guided transforaminal injection for radiculopathy caused by cervical disc herniation. During the last seven years, 57 patients (39 female, 18 male, mean age 45.6 years) experiencing cervical radiculopathy underwent cervical foraminal block guided by fluoroscopy by postero-lateral approach. The position of the needle was verified after injection of a small amount of contrast. A glucocorticosteroid was injected after 0.5 ml of 2% lidocaine. Results: The local with the highest prevalence of procedures was C6 root (31 procedures); 14 patients underwent C7 block, 7 had C5 block, and 5 in C4. Eight patients (14%) had complications (3 syncopes, 3 transient hoarseness, one patient had worsening of symptoms and one patient had soft tissue hematoma). In total, 42.1% were asymptomatic after the procedure and therefore did not require surgery after the procedure. Other 57.9% had transient improvement, became asymptomatic for at least 2 months but required surgery due to the recurrence of symptoms. Conclusion: Cervical foraminal block for cervical disc herniation is a safe way to avoid surgery. Some patients still need surgery after the procedure, but the temporary improvement in symptoms gives the patient some relief while awaiting surgery.
DOI: 10.6084/m9.figshare.20013955.v1
title: TRANSFORAMINAL CERVICAL NERVE ROOT BLOCK: OUTCOMES AND COMPLICATIONS

description: ABSTRACT Objectives: To investigate the effect and complications after transforaminal injection for cervicobrachialgia caused by cervical disc herniation. Methods: We retrospectively reviewed all patients undergoing fluoroscopy-guided transforaminal injection for radiculopathy caused by cervical disc herniation. During the last seven years, 57 patients (39 female, 18 male, mean age 45.6 years) experiencing cervical radiculopathy underwent cervical foraminal block guided by fluoroscopy by postero-lateral approach. The position of the needle was verified after injection of a small amount of contrast. A glucocorticosteroid was injected after 0.5 ml of 2% lidocaine. Results: The local with the highest prevalence of procedures was C6 root (31 procedures); 14 patients underwent C7 block, 7 had C5 block, and 5 in C4. Eight patients (14%) had complications (3 syncopes, 3 transient hoarseness, one patient had worsening of symptoms and one patient had soft tissue hematoma). In total, 42.1% were asymptomatic after the procedure and therefore did not require surgery after the procedure. Other 57.9% had transient improvement, became asymptomatic for at least 2 months but required surgery due to the recurrence of symptoms. Conclusion: Cervical foraminal block for cervical disc herniation is a safe way to avoid surgery. Some patients still need surgery after the procedure, but the temporary improvement in symptoms gives the patient some relief while awaiting surgery.
DOI: 10.6084/m9.figshare.20013956
title: THORACIC DISC HERNIATION: SURGICAL DECOMPRESSION BY POSTERIOR APPROACH A LA CARTE

description: ABSTRACT Objectives: To present the clinical and radiographic results of patients with thoracic disc herniation treated by the posterior approach, according to location and type of hernia (à la carte). Methods: We evaluated thirteen patients (14 hernias) treated by the posterior approach. Eight (61.5%) patients were male and the mean age was 53 years (34-81). Clinical evaluation was performed by the Frankel and JOA modified scales. All the patients underwent the posterior approach, which was performed by facetectomy, transpedicular approach, transpedicular + partial body resection, costotransversectomy or costotransversectomy + reconstruction with CAGE. Results: The mean follow-up was 2 years and 6 months (11-77 months). Of the 14 operated hernias, six (43%) were lateral, 2 (14%) paramedian, and 6 (43%) central. Seven were soft (50%) and seven were calcified. The transfacet approach was carried out in 5 cases (36%), transpedicular in 1 case (7%), transpedicular + partial body resection in 4 (29%), costotransversectomy in 3 (21%), and costotransversectomy + CAGE in one case (7%). The majority of patients with lateral hernia (5/6) were subjected to transfacet decompression and in cases of central and paramedian hernias, all patients underwent decompression, which is more extensive. Conclusions: The posterior approach is safe and effective, and the best approach must be chosen based on location and type of the herniation and the surgeon's experience.
DOI: 10.6084/m9.figshare.20013956.v1
title: THORACIC DISC HERNIATION: SURGICAL DECOMPRESSION BY POSTERIOR APPROACH A LA CARTE

description: ABSTRACT Objectives: To present the clinical and radiographic results of patients with thoracic disc herniation treated by the posterior approach, according to location and type of hernia (à la carte). Methods: We evaluated thirteen patients (14 hernias) treated by the posterior approach. Eight (61.5%) patients were male and the mean age was 53 years (34-81). Clinical evaluation was performed by the Frankel and JOA modified scales. All the patients underwent the posterior approach, which was performed by facetectomy, transpedicular approach, transpedicular + partial body resection, costotransversectomy or costotransversectomy + reconstruction with CAGE. Results: The mean follow-up was 2 years and 6 months (11-77 months). Of the 14 operated hernias, six (43%) were lateral, 2 (14%) paramedian, and 6 (43%) central. Seven were soft (50%) and seven were calcified. The transfacet approach was carried out in 5 cases (36%), transpedicular in 1 case (7%), transpedicular + partial body resection in 4 (29%), costotransversectomy in 3 (21%), and costotransversectomy + CAGE in one case (7%). The majority of patients with lateral hernia (5/6) were subjected to transfacet decompression and in cases of central and paramedian hernias, all patients underwent decompression, which is more extensive. Conclusions: The posterior approach is safe and effective, and the best approach must be chosen based on location and type of the herniation and the surgeon's experience.
DOI: 10.6084/m9.figshare.20013958.v1
title: RESULTS OF TREATMENT OF ACUTE LUMBAR DISC HERNIATION WITH TRANSFORAMINAL NERVE ROOT BLOCK

description: ABSTRACT Objective: To determine the efficacy of anesthetic transforaminal nerve root block in patients with sciatica secondary to lumbar disc herniation through a prospective observational study. Methods: The study included 176 patients from a private clinic undergoing transforaminal injection performed by a single spinal surgeon. The patients were assessed after two weeks, three months and six months regarding to the improvement of the pain radiating to the lower limbs. In case of persistent symptoms, patients could choose to perform a new nerve root block and maintenance of physical therapy or be submitted to conventional microdiscectomy. Results: By the end of six-month follow-up of the 176 patients, 116 had a favorable outcome (95 after one block and 21 after two blocks), and only 43 required surgery. Conclusion: The results of our study suggest a positive effect of transforaminal block for the treatment of sciatica in patients with lumbar disc herniation.
DOI: 10.6084/m9.figshare.20013958
title: RESULTS OF TREATMENT OF ACUTE LUMBAR DISC HERNIATION WITH TRANSFORAMINAL NERVE ROOT BLOCK

description: ABSTRACT Objective: To determine the efficacy of anesthetic transforaminal nerve root block in patients with sciatica secondary to lumbar disc herniation through a prospective observational study. Methods: The study included 176 patients from a private clinic undergoing transforaminal injection performed by a single spinal surgeon. The patients were assessed after two weeks, three months and six months regarding to the improvement of the pain radiating to the lower limbs. In case of persistent symptoms, patients could choose to perform a new nerve root block and maintenance of physical therapy or be submitted to conventional microdiscectomy. Results: By the end of six-month follow-up of the 176 patients, 116 had a favorable outcome (95 after one block and 21 after two blocks), and only 43 required surgery. Conclusion: The results of our study suggest a positive effect of transforaminal block for the treatment of sciatica in patients with lumbar disc herniation.
DOI: 10.6084/m9.figshare.20013959
title: IN WHICH PATIENTS IS IT POSSIBLE TO PERFORM STANDALONE LATERAL LUMBAR INTERBODY FUSION WITHOUT CAGE SUBSIDENCE?

description: ABSTRACT Objective: To identify the factors related to the non-occurrence of cage subsidence in standalone lateral lumbar interbody fusion procedures. Methods: Case-control study of single level standalone lateral lumbar interbody fusion (LLIF) including 86 cases. Patients without cage subsidence composed the control group (C), while those in the subsidence group (S) developed cage subsidence. Preoperative data were examined to create a risk score based on correlation factors with S group. The proven risk factors were part of an evaluation score. Results: Of the 86 cases included, 72 were in group C and 14 in group S. The following risk factors were more prevalent in group S compared to C group: spondylolisthesis (93% vs 18%; p&lt;0.001); scoliosis (31% vs 12%; p=0.033); women (79% vs 38%; p=0.007); older patients (average 57.0 vs 68.4 years; p=0.001). These risk factors were used in a score (0-4) to evaluate the risk in each case. The patients with higher risk scores had greater subsidence (p&lt;0.001). Scores ≥2 were predictive of subsidence with 92% sensitivity and 72% specificity. Conclusions: It was possible to correlate the degree of subsidence in standalone LLIF procedures using demographic (age and gender) and pathological (spondylolisthesis and scoliosis) data. With a score based on risk factors and considering any score &lt;2, the probability of non-occurrence of subsidence following standalone LLIF (negative predictive value) was 98%.
DOI: 10.6084/m9.figshare.20013959.v1
title: IN WHICH PATIENTS IS IT POSSIBLE TO PERFORM STANDALONE LATERAL LUMBAR INTERBODY FUSION WITHOUT CAGE SUBSIDENCE?

description: ABSTRACT Objective: To identify the factors related to the non-occurrence of cage subsidence in standalone lateral lumbar interbody fusion procedures. Methods: Case-control study of single level standalone lateral lumbar interbody fusion (LLIF) including 86 cases. Patients without cage subsidence composed the control group (C), while those in the subsidence group (S) developed cage subsidence. Preoperative data were examined to create a risk score based on correlation factors with S group. The proven risk factors were part of an evaluation score. Results: Of the 86 cases included, 72 were in group C and 14 in group S. The following risk factors were more prevalent in group S compared to C group: spondylolisthesis (93% vs 18%; p&lt;0.001); scoliosis (31% vs 12%; p=0.033); women (79% vs 38%; p=0.007); older patients (average 57.0 vs 68.4 years; p=0.001). These risk factors were used in a score (0-4) to evaluate the risk in each case. The patients with higher risk scores had greater subsidence (p&lt;0.001). Scores ≥2 were predictive of subsidence with 92% sensitivity and 72% specificity. Conclusions: It was possible to correlate the degree of subsidence in standalone LLIF procedures using demographic (age and gender) and pathological (spondylolisthesis and scoliosis) data. With a score based on risk factors and considering any score &lt;2, the probability of non-occurrence of subsidence following standalone LLIF (negative predictive value) was 98%.
DOI: 10.6084/m9.figshare.20013961.v1
title: PATIENTS WITH SPINAL METASTASIS SUBMITTED TO NEUROLOGICAL DECOMPRESSION AND STABILIZATION

description: ABSTRACT Objective: To analyze retrospectively the surgical outcomes of a group of patients with bone metastases and multiple myeloma in the spine, which underwent neurological decompression and arthrodesis using pedicle screws, by isolated posterior approach, to check whether the operated patients present clinical improvement regarding the pain and neurological deficit compared to the preoperative period. Methods: This is a retrospective, cross-sectional study of case series, that analyzed data from medical records of patients with bone metastases in the spine who underwent surgical treatment between January 2007 and February 2011. Results: Of the 42 patients in the sample, according to the Kolmogorov-Smirnov test (p=0.000) there was improvement in pain with respect to the preoperative, with 33 patients (78.6%) reporting improvement and only 9 (21.4%) maintaining the initial pain complaints. Of the 25 patients available for evaluation of neurological improvement (≠ Frankel E) 9 patients (36%) had some kind of improvement postoperatively, and no operated patient presented neurological worsening, indicating statistical significance according to the Kolmogorov-Smirnov test (p = 0.000). It was also observed statistical correlation (p=0.042) between Frankel functional score postoperatively and pain relief, using the chi-square test. Conclusions: Surgical treatment for patients with spinal metastasis through arthrodesis with pedicle instrumentation and decompression may have significant clinical benefits, especially as regards the improvement in pain symptoms and improved neurological function.
DOI: 10.6084/m9.figshare.20013961
title: PATIENTS WITH SPINAL METASTASIS SUBMITTED TO NEUROLOGICAL DECOMPRESSION AND STABILIZATION

description: ABSTRACT Objective: To analyze retrospectively the surgical outcomes of a group of patients with bone metastases and multiple myeloma in the spine, which underwent neurological decompression and arthrodesis using pedicle screws, by isolated posterior approach, to check whether the operated patients present clinical improvement regarding the pain and neurological deficit compared to the preoperative period. Methods: This is a retrospective, cross-sectional study of case series, that analyzed data from medical records of patients with bone metastases in the spine who underwent surgical treatment between January 2007 and February 2011. Results: Of the 42 patients in the sample, according to the Kolmogorov-Smirnov test (p=0.000) there was improvement in pain with respect to the preoperative, with 33 patients (78.6%) reporting improvement and only 9 (21.4%) maintaining the initial pain complaints. Of the 25 patients available for evaluation of neurological improvement (≠ Frankel E) 9 patients (36%) had some kind of improvement postoperatively, and no operated patient presented neurological worsening, indicating statistical significance according to the Kolmogorov-Smirnov test (p = 0.000). It was also observed statistical correlation (p=0.042) between Frankel functional score postoperatively and pain relief, using the chi-square test. Conclusions: Surgical treatment for patients with spinal metastasis through arthrodesis with pedicle instrumentation and decompression may have significant clinical benefits, especially as regards the improvement in pain symptoms and improved neurological function.
DOI: 10.6084/m9.figshare.20013962.v1
title: TRUNK MOBILITY AFTER MINIMALLY INVASIVE ONE-LEVEL LUMBAR INSTRUMENTATION

description: ABSTRACT Objective: To evaluate the impact of a minimally invasive lumbar one-level fixation on trunk mobility and quality of life compared with the preoperative condition in 26 consecutive patients. Methods: The following data were collected preoperatively and postoperatively for the statistical analysis: maximal trunk extension and flexion angles, Visual Analog Scale of pain and Oswestry Disability Index scores. Results: There was improvement in all variables. Statistical significance was observed in trunk extension, pain, and Oswestry Disability Index. Although mobility in trunk flexion was higher in average values after surgery, this difference was not statistically demonstrated. Conclusion: Minimally invasive one-level lumbar fixation does not cause reduction of trunk flexibility in comparison to the mobility before surgery.