Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 13 de 13
Filtrar
1.
Global Spine J ; 13(3): 659-667, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33840238

RESUMO

STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Thoracic ossified ligamentum flavum (TOLF) has been reported to present with varying degrees of neuro-deficit and multiple factors have been purported to affect its outcome. Purpose of study was to analyze factors affecting outcome and impact of ultrasonic osteotome (UO). METHODS: We retrospectively reviewed patients treated for thoracic myelopathy secondary to OLF between 2010 and 2017. 77 patients with complete clinico-radiological records and 2 years follow-up were included. Initial 45 patients, conventional high-speed burr (HSB-group A) was used for decompression. In others, UO was used in combination with HSB (group B). Myelopathy was graded using modified Japanese orthopaedic association grading pre-operatively and each postoperative visit. At final follow-up, recovery rate was calculated. Radiological details including location, morphology, dural ossification, signal change and spinal ossifications were recorded. RESULTS: Mean mJOA at presentation and final follow-up were 4.3±1.8 and 7.6±1.9 respectively (p = 0.001). HRR was 49.9±23 at final follow-up. A significant reduction in dural tear (12.5%; 29%) and surgical time (125.8±49.5; 189.4±52.5) were observed in group B (p = 0.00). However, there was no statistically significant difference (p = 0.18) in recovery rates between groups A (44.8±26.1) and B (52.8±24.3). Symptom duration (p = 0.00), severity of myelopathy (p = 0.04) and cord signal changes on MRI (p = 0.02) were important predictors of outcome. CONCLUSION: Use of UO significantly reduced operative time and dural tears, although resulted in similar recovery rate as compared with HSB. Pre-operative severity of myelopathy, symptom duration and presence of cord signal change were the most significant predictors of outcome.

2.
Global Spine J ; 13(1): 122-132, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33567929

RESUMO

STUDY DESIGN: A retrospective study. OBJECTIVE: To identify the prevalence and characteristics of ossified posterior longitudinal ligament (OPLL) in the cervical spine and its association with other spinal ligament ossifications. METHOD: This study is a retrospective review of whole spine CT scans of polytrauma patients from 2009 to 2018. Patients were screened for cervical OPLL (C-OPLL), thoracolumbar OPLL, thoracic ossified ligamentum flavum (OLF), cervical and thoracolumbar ossified anterior longitudinal ligament (C-OALL AND T-L OALL), ossified nuchal ligament (ONL) and, diffuse idiopathic skeletal hyperostosis (DISH) using CT scans. Their prevalence and distributions were assessed using statistical tools. Chi-square tests were used to determine statistical association between the categorical parameters. RESULTS: Out of 2500 patients, 128 had C-OPLL with a prevalence rate of 5.12% with mean age of 55.89 year. The most commonly affected level was C5, followed by C6, and C4. The segmental OPLL was highest in number (77.7%), followed by localized type (14.8%). While the prevalence rate of thoracic OPLL was 0.56%, OLF was 9.9%. Ossifications that coexisted along with C-OPLL were thoracic OPLL (7.81%), thoracic OLF (36.71%), cervical OALL (29.68%), thoracolumbar OALL (37.5%), DISH (27.34%) and, ONL (7.03%). CONCLUSION: Our study indicated a prevalence rate of 5.12% for C-OPLL with a predominance of segmental OPLL (77.7%). Among these patients, approximately 36% had coexisting thoracic OLF. In patients with symptomatic OPLL induced cervical myelopathy, MRI analysis of whole spine with relevant CT correlation may help in detecting additional ossification sites of compression.

3.
Asian Spine J ; 17(1): 156-165, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35785912

RESUMO

STUDY DESIGN: Retrospective cohort. PURPOSE: The current study was planned to evaluate deformity characteristics, assess relationship between morphology of syrinx/Arnold Chiari malformation (ACM) and deformity, analyze effect of posterior fossa decompression (PFD), and evaluate outcome. OVERVIEW OF LITERATURE: Scoliosis in ACM-I and syringomyelia (SM) is uncommon, and deformity characteristics differ from those seen in idiopathic scoliosis. METHODS: Data regarding patients, who underwent PFD for ACM-I presenting with SM and scoliosis between January 2009 and December 2018, were retrospectively collected. Only patients with 2-year follow-up were included. Sagittal/coronal deformity and sagittal spinopelvic parameters were examined. Symmetry and extent of tonsillar descent, as well as morphology (configuration/variation) and extent of syrinx were determined. RESULTS: A total of 42 patients (20 females; age: 14.2±5.8 years) were included; 35 patients (83.3%) had atypical curves. Mean preoperative coronal Cobb was 57.7°±20.9°; and 12 (28.6%) had significant coronal imbalance. Tonsillar descent was classified as grade 1, 2, and 3 in 16 (38.1%), 11 (26.2%), and 15 (35.7%) patients; 35 patients (83.3%) had asymmetric tonsillar descent; 17 (40.4%), 3 (7.1%), 16 (38.1%), and 6 (14.4%) had circumscribed, moniliform, dilated, and slender syrinx patterns; and 9 (21.4%), 12 (28.6%), and 21 (50%) of syrinx were right-sided, left-sided, and centric. There was no significant relationship between side of tonsillar dominance (p =0.31), grade of descent (p =0.30), and convexity of deformity. There was significant association between side of syrinx and convexity of scoliosis (p =0.01). PFD was performed in all, and deformity correction was performed in 23 patients. In curves ≤40°, PFD alone could stabilize scoliosis progression (p =0.02). There was significant reduction in syrinx/cord ratio following PFD (p <0.001). CONCLUSIONS: ACM-I+SM patients had atypical curve patterns in 83% of cases, and the side of syrinx deviation correlates with scoliosis convexity. Syrinx shrinks significantly following PFD. PFD may not stabilize scoliosis in curves >40°.

4.
Indian J Orthop ; 56(12): 2160-2168, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36507215

RESUMO

Introduction: Riluzole, a benzothiazole sodium channel blocker is acknowledged as a neuroprotective agent in spinal cord injury (SCI). Most of this evidence is based on pre-clinical studies and its effectiveness in clinical setting is undetermined, heretofore. Methods: A prospective, randomised-controlled study was conducted between April 2019 and March 2020 at a tertiary-level centre. Patients aged 18-65 years with sub-axial cervical spine injury, who presented within 72 h of injury with incomplete neuro-deficit, were included. They were randomised into groups A (riluzole was administered) and B (no adjuvants). All patients were followed up at 6 weeks/3/6/12 months, and clinical [ASIA motor/sensory scores/grade, SCIM3, and NRS (neuropathic pain)] and radiological evaluation was performed. Results: Twenty-three and 20 patients were included in groups A and B. Two in group A were females, while others were males (p = 0.49). Mean age in groups A and B was 47.7 ± 14.8 and 51.2 ± 14.1 years (p = 0.44). Five patients died prior to 6th-week follow-up. Among the others, there was significant improvement in all neurological parameters in both groups (post-injury vs 1-year; motor score: p < 0.001, sensory score: p < 0.001, SCIM3: p < 0.001, NRS: p < 0.001). In both groups, initial significant improvement was noticed even at the 6th-week follow-up, which further continued until the end of 1 year. There was no statistically significant difference between groups A and B with respect to these neurological parameters (motor: p = 0.15, sensory: p = 0.39, SCIM3: p = 0.68, NRS: p = 0.06). Conclusion: Administration of riluzole did not significantly improve neurological outcome/neuropathic pain in our cohort. Nevertheless, both our groups demonstrated an overall improvement in neurological outcome at 1 year, as compared with immediate post-injury status.

5.
J Clin Orthop Trauma ; 32: 101984, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35996383

RESUMO

Background: Different adjuvant local-antibiotic techniques are described in management of surgical-site infections (SSIs). Antibiotic-laden polymethyl methacrylate (PMMA) spacers have been used in peri-prosthetic infections. However, their role in treatment of spinal SSIs is not well-recognised. Methods: After approval from Institutional Review Board, we retrospectively evaluated the data of patients aged≥18 years, who were treated for SSIs of lumbo-sacral region (2010-2019). Among them, those who underwent treatment with the placement of cement beads (temporarily/permanently) were identified. This approach was utilised for post-surgical spondylodiscitis patients with significant, associated infection or abscess involving the paraspinal musculature. Only those with≥2 years' follow-up, were included.Patient demographic details, site of infection, details regarding laboratory/radiological investigations, management-protocol followed, pathogen grown, antibiotics used (their dosage and duration of use), complications encountered and outcome were recorded. Results: 13 patients [4 males, age:57.3 ± 12.4 years] were included. Seven had co-morbidities. One had upper-lumbar involvement, one sacral and others had lower-lumbar (L4/distally) disease. While 7 had recent-onset infection (≤2 months since primary surgery), 6 had chronic infection. In 2, 8, 2, and 1 patients, primary surgery was microdiscectomy, TLIF, PLF, and adult-deformity surgery, respectively.Nine underwent two-staged intervention and 4 underwent single procedure. Eleven had PMMA beads, while 2 underwent calcium sulphate bead insertion. Culture grew E coli in 3, Pseudomonas in 2; and E fecalis, K pneumoniae, MSSA and MRSA in one patient each. In 4 patients, beads were not removed. All patients underwent 2 weeks of parenteral antibiotics, followed by 8-12 weeks of oral medications. There was complete remission in all patients, except one who required additional VAC therapy. Conclusion: Local antibiotic-laden bead application is an effective adjuvant strategy (along with debridement and systemic antibiotics) for the treatment of spinal SSI, where there is substantial infection involving the paraspinal musculature. It is cost-effective and often necessitates second procedure for bead removal.

6.
World Neurosurg ; 167: e350-e359, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35961591

RESUMO

BACKGROUND: Although most osteoporotic vertebral fractures (OVFs) heal conservatively, the most crucial undesirable outcome of conservative treatment is the failure to unite. There is paucity of literature on prevalence and risk factors of pseudarthrosis. METHODS: A prospective study involving patients (aged ≥50 years) undergoing conservative treatment of osteoporotic thoracic/lumbar fractures without neurodeficits was performed. Patients were followed for a minimum of 6 months and classified into 3 groups based on fracture healing: group 1, healing without collapse; group 2, healing with collapse; and group 3, pseudarthrosis. An assessment of all clinicoradiologic parameters at the time of injury and at each follow-up was performed and compared among patients belonging to the groups. RESULTS: A total of 77 patients (90 fractures) were studied. Sixty-six (73.3%), 16 (17.8%), and 28 (8.9%) fractures were classified under groups 1, 2, and 3, respectively. Mean ages in groups 1, 2, and 3 were 67.9 ± 9.1, 70.4 ± 7.6 and 72.3 ± 7.9 years (P = 0.08). Sex distribution was 62:15 (female/male). Seventy-three fractures (81.1%) occurred at the thoracolumbar junction. Stiff spine, ambulatory status, comorbidities, bone mineral density, and injury level were not associated with pseudarthrosis/collapse (P > 0.05). Male sex was associated with pseudarthrosis (P = 0.03). Based on regression analysis, initial vertebral height loss (radiography; P = 0.028), segmental Cobb (radiography; P = 0.019), vertebral comminution (computed tomography; P = 0.032), posterior ligamentous complex injury (magnetic resonance imaging; P = 0.048), and marrow change pattern (T2-weighted magnetic resonance imaging, Kanchiku classification; P = 0.037) were correlated with poorer outcome. Patients with pseudarthrosis had higher visual analog scale score (P = 0.04; final follow-up). CONCLUSIONS: Of OVFs, 8.9% developed pseudarthrosis. Male sex, severity of postinjury vertebral deformation (vertebral loss, kyphosis, comminution, and marrow changes) and presence of posterior ligamentous complex injury are risk factors for pseudarthrosis.


Assuntos
Fraturas por Osteoporose , Pseudoartrose , Fraturas da Coluna Vertebral , Humanos , Masculino , Feminino , Estudos Prospectivos , Pseudoartrose/diagnóstico por imagem , Pseudoartrose/complicações , Coluna Vertebral/patologia , Fraturas da Coluna Vertebral/complicações , Fraturas da Coluna Vertebral/diagnóstico por imagem , Fraturas da Coluna Vertebral/patologia , Fraturas por Osteoporose/diagnóstico por imagem , Fraturas por Osteoporose/cirurgia , Fraturas por Osteoporose/complicações , Vértebras Lombares/lesões , Vértebras Torácicas/lesões , Resultado do Tratamento
7.
Eur Spine J ; 31(12): 3743-3747, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35567631

RESUMO

PURPOSE: To discuss the effect of posterior instrumented deformity correction and fusion on the progressive endochondral ossification of anterior vertebral body in a patient with congenital kyphosis secondary to type 1 vertebral anomaly. METHODS: A 15-year-old male patient presented with a progressively worsening congenital TL kyphosis of 52° magnitude secondary to a posterior hemivertebra. His pre-operative antero-posterior vertebral height ratio (APVHR) and anterior vertebral body defect ratio (AVBDR) on CT were 38% and 49%, respectively. He underwent posterior instrumented deformity correction with multilevel type 1 Schwab osteotomies and fusion. RESULTS: Over the next 3 years, his serial imaging revealed progressive endochondral ossification and gradual increase in the dimensions of the vertebral body. At the final follow-up, there was a significant restoration of the deficient anterior vertebral body, and the final APVHR and AVBDR were 81% and 90%, respectively. CONCLUSIONS: Restitution of posterior column integrity through stabilization can mitigate the compressive stresses across anterior column. Over a period of time, forces restraining the growth of anterior vertebral apophysis are alleviated, and the vertebra can potentially re-grow to near-normal dimensions in pediatric population. This phenomenon could be well-demonstrated in our patient during follow-up. LEVEL OF EVIDENCE I: Diagnostic: individual cross-sectional studies with the consistently applied reference standard and blinding.


Assuntos
Cifose , Anormalidades Musculoesqueléticas , Fusão Vertebral , Masculino , Criança , Humanos , Adolescente , Vértebras Torácicas/diagnóstico por imagem , Vértebras Torácicas/cirurgia , Estudos Transversais , Radiografia , Resultado do Tratamento , Cifose/diagnóstico por imagem , Cifose/etiologia , Cifose/cirurgia , Fusão Vertebral/métodos , Anormalidades Musculoesqueléticas/complicações , Estudos Retrospectivos
8.
Int Orthop ; 46(3): 597-603, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35020025

RESUMO

PURPOSE: Although the guidelines for surgical indications in spinal tuberculosis (TB) are well-established, ambiguity still exists in deciding between posterior-only stabilization and global reconstruction in thoracic and thoracolumbar (TL) disease especially in patients with borderline vertebral destruction. The current prospective, randomized study was thus planned to compare safety and efficacy of these two surgical interventions. METHODS: Patients, aged between 18 and 65 years, with spinal TB involving thoracic and TL spine with pre-operative vertebral body loss (VBL) between 0.5 and 1 were randomly allocated into two groups [groups A (who underwent posterior-only stabilization) and B (global reconstruction through a single-stage all-posterior approach). Patient's demographic data, clinical, intra-operative and post-operative details were recorded. Minimum follow-up period was two years. Neurological assessment was performed using ASIA impairment scale. Functional outcome measurements included VAS and ODI scores (pre-operative and final follow-up). Radiological measurements included Cobb's angle, kyphosis correction, loss of correction, angle loss rate and fusion time. RESULTS: Fifty-eight patients (groups A and B = 29 each) were included. Mean age in groups A and B was 48.3 ± 16.5 years and 51.2 ± 11.7 years. Mean surgical duration was significantly shorter in group A (119.9 ± 14.1 minutes; p = 0.0001). Mean follow-up duration was 35.5 ± 6.4 months. There was no statistically significant difference in neurological outcome at final follow-up between the groups (p > 0.05). Group A demonstrated significantly better ODI at final follow-up (13.8 ± 2.9 vs 16.2 ± 4.1; p = 0.02). Immediate post-operative correction (6.8° ± 5.6) and maintenance of kyphosis correction at final follow-up [loss of correction (2.1° ± 1.7) and angle loss rate (16.3 ± 14.9%)] were marginally better in group B (p > 0.05). Mean fusion time in groups A and B was 7.8 ± 1.5 and 8.4 ± 1.6 months (p > 0.05). A sub-group analysis in group B between autograft and metallic cages for anterior reconstruction did not show significant difference in radiological outcome (p > 0.05). CONCLUSION: All-posterior surgeries (posterior-only stabilization or global reconstruction) represent an effective approach in the management of TB disease affecting thoracic and TL vertebrae. For a pre-operative VBL between 0.5 and 1, clinical (including neurological), functional and radiological outcomes following both these surgeries (posterior-only stabilization and global reconstruction) are comparable.


Assuntos
Fusão Vertebral , Tuberculose da Coluna Vertebral , Adolescente , Adulto , Idoso , Humanos , Vértebras Lombares/cirurgia , Pessoa de Meia-Idade , Estudos Retrospectivos , Fusão Vertebral/efeitos adversos , Vértebras Torácicas/cirurgia , Resultado do Tratamento , Tuberculose da Coluna Vertebral/cirurgia , Adulto Jovem
9.
Spine Deform ; 10(2): 343-350, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34669167

RESUMO

PURPOSE: To analyse the progression of disc degeneration in distal unfused lumbar segments in post-operative Adolescent Idiopathic Scoliosis (AIS) patients; and to evaluate pre-operative and post-operative radiological parameters associated with progressive disc degeneration. METHODS: A retrospective study of patients, who underwent surgery for AIS between 2006 and 2013 at a tertiary-care spine hospital, was conducted. Only patients aged between 11 and 18 years, who underwent deformity correction surgery with pedicle screw-only constructs, minimum of 6.5 year follow-up, and complete radiological data, and were included. On plain radiographs, coronal cobb's angle (CCA), apical translation, lower instrumented vertebra tilt (LIV tilt), LIV-Sacral angle, and sagittal spinal and pelvic parameters were measured. Disc degeneration was assessed on Magnetic Resonance Imaging (MRI) using Pfirrmann's grading. Total endplate score (TEPS) and facet degeneration (by Fujiwara's grading) were also measured. Based on the difference in progression of disc degeneration, patients were classified as Pfirrmann's grade static (PGS) and Pfirrmann's grade progressive (PGP) groups. Comparison of all pre- and post-operative parameters was made between PGS and PGP groups, and statistically analyzed. Functional evaluation was performed using SRS-22 score. RESULTS: A total of 58 patients were finally included. The mean follow-up was 9.1 years. 43 (74.1%) and 15 (25.9%) patients were classified under PGS and PGP groups, respectively. Among the15 patients in PGP group, selected LIV was L4 in 8, L3 in 3, L1 in 3, and L2 in 1. Among them, 11 patients (73.3%) progressed from grade 1 to grade 2. In the remaining 4 (26.6%), Pfirrmann's grade progressed to ≥ 3. The progression of disc degeneration did not correlate with age or sex distribution (p = 0.3), pre-operative and post-operative TEP scores (p = 032), pre-operative disc or facet degeneration (p = 0.52), number of unfused spinal segments (p = 0.56), pre-operative or post-operative coronal (p = 0.42), or sagittal spinal (p = 0.27) or pelvic parameters (p = 0.14). The final functional outcome (SRS-22) was not significantly different between PGS and PGP groups (p = 0.67). CONCLUSION: 74% of AIS patients demonstrated no signs of progressive disc degeneration at an average follow-up of 9.1 years. 26% (15/58) of AIS patients demonstrated progressive disc degeneration, among whom, degeneration progressed by only 1 Pfirrmann's grade in 74% (11/15). In the remaining four patients, disc degeneration progressed to Pfirrmann's grades 3 or greater. There was no correlation between higher grades of disc degeneration and lower instrumented vertebra (LIV) or functional outcomes scores (SRS-22).


Assuntos
Degeneração do Disco Intervertebral , Escoliose , Fusão Vertebral , Adolescente , Criança , Humanos , Degeneração do Disco Intervertebral/diagnóstico por imagem , Degeneração do Disco Intervertebral/cirurgia , Vértebras Lombares/diagnóstico por imagem , Vértebras Lombares/cirurgia , Estudos Retrospectivos , Escoliose/diagnóstico por imagem , Escoliose/cirurgia , Fusão Vertebral/métodos
10.
Spine Deform ; 10(2): 401-410, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34665447

RESUMO

PURPOSE: Congenital spinal deformities (CSD) are uncommon; and usually present during early childhood. Rarely, patients have been reported to present with neglected CSD in association with myelopathy. The current study reports the largest series of patients with neglected CSD and major neuro-deficit; and discusses their long-term outcome. METHODS: We retrospectively analysed patients with CSD who presented with myelopathy and underwent surgical management between January 2008 and January 2018. Only patients who had complete clinico-radiological records and completed minimum 2-year follow-up were included. Neurology was graded according to American Spinal Injury Association Impairment, Nurick and modified Japanese Orthopaedic Association scores. Radiological details like deformity type, location, magnitude, and underlying anomaly were recorded. A comparative analysis of parameters between pre-operative and final follow-up periods was performed. RESULTS: Thirty three (age = 21.1 ± 11.9 years) patients with CSD and myelopathy were included. Mean duration since myelopathy was 5.2 ± 6.2 months. Thirty (91%) patients presented with kyphosis or kyphoscoliosis; and 18 had upper thoracic-level lesion (12 and 3 with mid- or low-thoracic and lumbar lesions). 16 (48.5%) and 12 (36.4%) presented with types 1 and 3 anomalies, respectively. Mean pre-operative mJOA and Nurick grades were 8.8 ± 2.4 and 3.4 ± 0.7. Based on ASIA score, 2, 5, 21 and five patients presented with grades A, C, D and E, respectively. All patients underwent surgeries from posterior-only approach. Mean follow-up was 4.7 ± 2.6 years. In kyphoscoliosis group, coronal and sagittal Cobb improved by 23.8° and 25.9°, respectively. Mean deformity improved by 19.6° and 15.6° in scoliosis and kyphosis groups, respectively. Neurological status improved in 5, remained stable in 23 and deteriorated in five patients. Mean mJOA and Nurick grades at final follow-up was 8.3 ± 3.1and 3.4 ± 0.9. CONCLUSION: Major neurological deficit is a rare complication of neglected CSD. In our series, such a presentation was observed in patients with kyphotic or kyphoscoliotic deformities, type 1 or 3 vertebral anomalies and proximal thoracic vertebral lesions. Surgery can be valuable in these patients, as it not only stabilises deformity, but also provides the best chance of preventing neuro-deterioration.


Assuntos
Cifose , Escoliose , Adolescente , Adulto , Criança , Pré-Escolar , Humanos , Cifose/congênito , Cifose/cirurgia , Estudos Retrospectivos , Fatores de Risco , Escoliose/complicações , Escoliose/diagnóstico por imagem , Escoliose/cirurgia , Resultado do Tratamento , Adulto Jovem
11.
Asian Spine J ; 14(4): 475-488, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32493003

RESUMO

STUDY DESIGN: Multicenter validation study. PURPOSE: To evaluate the inter-rater reliability of Rajasekaran's kyphosis classification through a multicenter validation study. OVERVIEW OF LITERATURE: The classification of kyphosis, developed by Rajasekaran, incorporates factors related to curve characteristics, including column deficiency, disc mobility, curve magnitude, and osteotomy requirements. Although the classification offers significant benefits in determining prognosis and management decisions, it has not been subjected to multicenter validation. METHODS: A total of 30 sets of images, including plain radiographs, computed tomography scans, and magnetic resonance imaging scans, were randomly selected from our hospital patient database. All patients had undergone deformity correction surgery for kyphosis. Twelve spine surgeons from the Asia-Pacific region (six different countries) independently evaluated and classified the deformity types and proposed their surgical recommendations. This information was then compared with standard deformity classification and surgical recommendations. RESULTS: The kappa coefficients for the classification were as follows: 0.88 for type 1A, 0.78 for type 1B, 0.50 for type 2B, 0.40 for type 3A, 0.63 for type 3B, and 0.86 for type 3C deformities. The overall kappa coefficient for the classification was 0.68. Regarding the repeatability of osteotomy recommendations, kappa values were the highest for Ponte's (Schwab type 2) osteotomy (kappa 0.8). Kappa values for other osteotomy recommendations were 0.52 for pedicle subtraction/disc-bone osteotomy (Schwab type 3/4), 0.42 for vertebral column resection (VCR, type 5), and 0.30 for multilevel VCRs (type 6). CONCLUSIONS: Excellent accuracy was found for types 1A, 1B, and 3C deformities (ends of spectrum). There was more variation among surgeons in differentiating between one-column (types 2A and 2B) and two-column (types 3A and 3B) deficiencies, as surgeons often failed to recognize the radiological signs of posterior column failure. This failure to identify column deficiencies can potentially alter kyphosis management. There was excellent consensus among surgeons in the recommendation of type 2 osteotomy; however, some variation was observed in their choice for other osteotomies.

12.
World Neurosurg ; 140: 180-187, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32437983

RESUMO

BACKGROUND: Hirayama disease (HD) is a rare focal amyotrophy, commonly reported in adolescent Asian males and characterized by unilateral or asymmetric distal upper extremity weakness. This disease exhibits an indolent course of progression over the initial 3-4 years, followed by a stage of stabilization. The diagnosis is confirmed by demonstration of enhanced posterior epidural space and dynamic spinal cord compression on cervical flexion magnetic resonance imaging. Diffusion tensor imaging (DTI) is a functional imaging modality, which can potentially be utilized in the diagnosis of HD. CASE DESCRIPTION: We hereby report 2 young male patients who had presented to us with bilateral asymmetric upper extremity weakness. In both patients, magnetic resonance imaging of cervical spine revealed spinal cord atrophy or myelomalacia, anterior displacement of posterior thecal sac, and T2 hyperintense posterior epidural space, all of which were more evident in flexed position. On DTI, we could observe reduced fractional anisotropy in cervical flexion, as compared with neutral. CONCLUSIONS: DTI tractography and reduced fractional anisotropy in cervical flexion can serve as potential indicators for the diagnosis of HD. Large-scale studies in the future are necessary to identify the potential role of this modality in surgical decision-making and in the assessment of prognosis in patients with HD.


Assuntos
Compressão da Medula Espinal/diagnóstico por imagem , Medula Espinal/diagnóstico por imagem , Atrofias Musculares Espinais da Infância/diagnóstico por imagem , Adolescente , Imagem de Tensor de Difusão , Humanos , Imageamento por Ressonância Magnética , Masculino
13.
Eur Spine J ; 26(12): 3178-3186, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28593383

RESUMO

PURPOSE: (1) To analyze peculiarities of presentation and prognosis of tubercular spondylodiscitis (TBS) in elderly. (2) To assess if associated co-morbidities and risks lead to poorer outcome (3) To observe if different management strategy needs to be implemented in them. METHODS: Retrospective analysis of 66 consecutive elderly TBS patients (>60 years) treated conservatively or surgically between January 2010 and July 2013 was performed. Details regarding clinical presentation (general health, ambulatory status, co-morbidities), neurological status, medical or surgical complications and outcome measurements [visual analog score, clinico-radiological evidence of healing and lumbar lordosis in lumbar (L) or lumbo-sacral (LS) or focal kyphosis in thoracic (T) or thoraco-lumbar (TL) disease] were analysed. RESULTS: Of 66 patients (mean age 67.9 years), 85% had at least one medical co-morbidity and only 45% were community ambulators. Mean delay in presentation was 132 days and lumbar disease was commonest. 35% had neuro-deficit. Most patients had stage 2 (38%) or 3 (42.4%) disease. 19 patients were conservatively managed, while others underwent surgery. Significant complications occurred in 23 patients, most common being liver dysfunction (9 patients). Five patients (8%) expired during treatment: three succumbed to multi-focal tubercular disease, while two expired secondary to medical illnesses. Mean loss of lordosis in conservatively treated (CG) L/LS disease was 8°, while lordosis was restored by 11.6° in operative group (OG). In T/TL disease, sagittal alignment correction by 12.6° was observed in OG as against 5.7° kyphotic collapse in CG patients. 92% patients were cured with no recurrences. The final VAS scores in operative and conservative groups were not significantly different (OG 1.4 ± 0.6, CG 1.9 ± 0.7). CONCLUSION: TBS in elderly differed from that in younger by having a higher co-morbidities, later presentation, higher neuro-deficit, greater mortality and increased complications. Nevertheless, in those who survived, clinico-radiological outcomes of both conservative and surgical treatments were good.


Assuntos
Discite , Tuberculose Osteoarticular , Adulto , Idoso , Comorbidade , Discite/complicações , Discite/epidemiologia , Discite/fisiopatologia , Humanos , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Tuberculose Osteoarticular/complicações , Tuberculose Osteoarticular/epidemiologia , Tuberculose Osteoarticular/fisiopatologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA