Research Topics
| Vedat DevirenSummaryAffiliation: University of California Country: USA Publications
| Collaborators
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Detail Information
Publications
The effects of rod contouring on spinal construct fatigue strengthColleen Lindsey
Department of Orthopaedic Surgery, University of California, Berkeley, CA, USA
Spine 31:1680-7. 2006..Contouring tended to lower the fatigue life of both the Ti6Al4V and CpTi constructs. CONCLUSION: Intraoperative rod contouring using a French Bender significantly reduces the fatigue life of titanium spinal constructs...
Minimal invasive anterolateral transthoracic transpleural approach: a novel technique for thoracic disc herniation. A review of the literature, description of a new surgical technique and experience with first 12 consecutive patientsVedat Deviren
Department of Orthopaedic Surgery, University of California, San Francisco, CA 94193, USA
J Spinal Disord Tech 24:E40-8. 2011..A retrospective review of a case series...- Anterior instrumented arthrodesis for adult idiopathic scoliosisVedat Deviren
Department of Orthopedic Surgery, University of California, San Francisco School of Medicine, San Francisco, CA 94143, USA
Neurosurg Clin N Am 18:273-80. 2007..Good results can be obtained in well-selected patients with a rigid instrumentation system and anterior structural grafts... - Anterior arthrodesis with instrumentation for thoracolumbar scoliosis: comparison of efficacy in adults and adolescentsVedat Deviren
Department of Orthopaedic Surgery, University of California, San Francisco, CA 94143, USA
Spine (Phila Pa 1976) 33:1219-23. 2008..A retrospective review was performed of adult and adolescent patients who underwent anterior spinal fusion for thoracolumbar idiopathic scoliosis; radiographic and clinical outcomes were compared... - Predictors of flexibility and pain patterns in thoracolumbar and lumbar idiopathic scoliosisVedat Deviren
Department of Orthopaedic Surgery, University of California San Francisco, 94143, USA
Spine (Phila Pa 1976) 27:2346-9. 2002..A retrospective evaluation of radiographs in patients with idiopathic scoliosis was undertaken to assess predictors of flexibility... - The impact of standing regional cervical sagittal alignment on outcomes in posterior cervical fusion surgeryJessica A Tang
Department of Neurological Surgery, University of California, San Francisco, San Francisco, California 94143, USA
Neurosurgery 71:662-9; discussion 669. 2012..Positive spinal regional and global sagittal malalignment has been repeatedly shown to correlate with pain and disability in thoracolumbar fusion... - Biomechanical analysis of osteotomy type and rod diameter for treatment of cervicothoracic kyphosisJustin K Scheer
Biomechanical Testing Facility, Orthopaedic Trauma Institute, San Francisco General Hospital, San Francisco, CA, USA
Spine (Phila Pa 1976) 36:E519-23. 2011..Biomechanical laboratory research... - Surgical site infection in spinal surgery: description of surgical and patient-based risk factors for postoperative infection using administrative claims dataAmir Abdul-Jabbar
Department of Orthopaedic Surgery, University of California, San Francisco, CA 94143, USA
Spine (Phila Pa 1976) 37:1340-5. 2012..Retrospective analysis... - Biomechanical analysis of cervicothoracic junction osteotomy in cadaveric model of ankylosing spondylitis: effect of rod material and diameterJustin K Scheer
Biomechanical Testing Facility, Orthopaedic Trauma Institute, San Francisco General Hospital, San Francisco, California 94110, USA
J Neurosurg Spine 14:330-5. 2011..This study characterizes the structural stability of various posterior fixation techniques across the cervicothoracic junction in spines with AS, specifically considering the effects of posterior rod diameter and material type... - Can a novel rectangular footplate provide higher resistance to subsidence than circular footplates? An ex vivo biomechanical studyMurat Pekmezci
Department of Orthopedic Surgery, Orthopedic Trauma Institute, University of California San Francisco, San Francisco, CA 94110, USA
Spine (Phila Pa 1976) 37:E1177-81. 2012..Ex vivo biomechanical evaluation using cadaveric vertebral bodies... - Clinical outcome of deep wound infection after instrumented posterior spinal fusion: a matched cohort analysisJames M Mok
Department of Orthopaedic Surgery, University of California, San Francisco, CA 94143 0728, USA
Spine (Phila Pa 1976) 34:578-83. 2009..Retrospective case control study... - Reoperation after primary fusion for adult spinal deformity: rate, reason, and timingJames M Mok
Department of Orthopedic Surgery, University of California, San Francisco, CA 94143 0728, USA
Spine (Phila Pa 1976) 34:832-9. 2009..Retrospective cohort study of consecutive patients undergoing primary fusion with segmental fixation for adult spinal deformity... - Biomechanical analysis of Goel technique for C1-2 fusionJon Park
Department of Orthopaedic Surgery, University of California, San Francisco, USA
J Neurosurg Spine 14:639-46. 2011..The goal of this study was to quantify changes in multiaxial rigidity of the combined Goel-Harms technique with the addition of C1-2 intraarticular spacers... - Extravasation of rhBMP-2 with use of postoperative drains after posterolateral spinal fusionJames M Mok
Department of Orthopaedic Surgery, University of California, San Francisco, CA 94143 0728, USA
Spine (Phila Pa 1976) 33:1668-74. 2008..Prospective measurement of rhBMP-2 from drains in a cohort of patients undergoing posterolateral spinal fusion... - Impact of spinopelvic alignment on decision making in deformity surgery in adults: A reviewChristopher P Ames
Department of Neurological Surgery, University of California, San Francisco, USA
J Neurosurg Spine 16:547-64. 2012..In this review the authors describe the proper analysis of spinopelvic alignment for surgical planning. Online videos supplement the text to better illustrate the key concepts... - Outcome and complications of long fusions to the sacrum in adult spine deformity: luque-galveston, combined iliac and sacral screws, and sacral fixationArash Emami
University of California, San Francisco, USA
Spine 27:776-86. 2002..Otherwise, they recommend using iliac fixation, although there is a higher rate of painful hardware, requiring removal... - Operative management of degenerative scoliosis: an evidence-based approach to surgical strategies based on clinical and radiographic outcomesSigurd H Berven
Department of Orthopedic Surgery, University of California, San Francisco, CA 94143 0728, USA
Neurosurg Clin N Am 18:261-72. 2007.... - Management of fixed sagittal plane deformity: outcome of combined anterior and posterior surgerySigurd H Berven
University of California, San Francisco Medical Center, CA 94143, USA
Spine 28:1710-5; discussion 1716. 2003..The subset of patients with preoperative regional hypolordosis of the lumbar spine has better outcomes than those with preoperative lumbar lordosis in the physiologic range... - Percutaneous plasma decompression alters cytokine expression in injured porcine intervertebral discsConor W O'Neill
Department of Radiology, University of California at San Francisco, San Francisco, CA 94143, USA
Spine J 4:88-98. 2004..Clinical data suggest discectomy may also help patients with contained discs and no clear neural compromise. However, the mechanisms of clinical efficacy are uncertain, and consequently bases for treatment optimization are limited... - Studies in the modified Scoliosis Research Society Outcomes Instrument in adults: validation, reliability, and discriminatory capacitySigurd Berven
Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA
Spine (Phila Pa 1976) 28:2164-9; discussion 2169. 2003..Observational study of patients with scoliosis and matched controls... - Technique of cervicothoracic junction pedicle subtraction osteotomy for cervical sagittal imbalance: report of 11 casesVedat Deviren
Department of Orthopaedic Surgery, University of California, San Francisco, California 94143, USA
J Neurosurg Spine 15:174-81. 2011..This study details the cervicothoracic PSO technique in 11 cases and correlates clinical kyphosis (chin-brow to vertical angle [CBVA]) with radiographic measurements... - Pedicle screw fixation of the thoracic spine: an in vitro biomechanical study on different configurationsVedat Deviren
Orthopaedic Biomechanics Laboratory, San Francisco General Hospital, University of California San Francisco, California, USA
Spine 30:2530-7. 2005..On the other hand, when anterior column release has been performed or instability exists before surgery, segmental pedicle screw fixation may be necessary to achieve adequate stability... - Biomechanical analysis of revision strategies for rod fracture in pedicle subtraction osteotomyJustin K Scheer
Biomechanical Testing Facility, Orthopaedic Trauma Institute, San Francisco General Hospital, San Francisco, California 94110, USA
Neurosurgery 69:164-72; discussion 172. 2011..Pseudoarthrosis after pedicle subtraction osteotomy (PSO) can require revision surgery due to posterior rod failure, and the stiffness of these revision constructs has not been quantified... - Relative strength of thoracic vertebrae in axial compression versus flexionJenni M Buckley
Biomechanical Testing Facility, UCSF SFGH Orthopaedic Trauma Institute, University of California, San Francisco, CA 94110, USA
Spine J 9:478-85. 2009.... - Pitfalls of calculating hospital readmission rates based on nonvalidated administrative data sets: : presented at the 2012 Joint Spine Section Meeting: clinical articleBeejal Y Amin
Department of Neurosurgery, University of California, San Francisco, California 94143, USA
J Neurosurg Spine 18:134-8. 2013.... - En bloc resection of primary tumors of the cervical spine: report of two cases and systematic review of the literatureJordan M Cloyd
Department of Neurological Surgery, University of California, San Francisco, 505 Parnassus Avenue, M779, Box 0112, San Francisco, CA 94143, USA
Spine J 9:928-35. 2009..Survival data and rates of recurrence after en bloc resection for cervical spinal tumors are limited to single case reports and small case series, making the true risk of recurrence after this procedure unknown... - The factors that play a role in the decision-making process of adult deformity patientsMurat Pekmezci
Department of Orthopedic Surgery, University of California San Francisco, San Francisco, CA 94143, USA
Spine (Phila Pa 1976) 34:813-7. 2009..Retrospective matched cohort... - Comparison of observer variation in conventional and three digital radiographic methods used in the evaluation of patients with adolescent idiopathic scoliosisJames M Mok
Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA
Spine (Phila Pa 1976) 33:681-6. 2008..This study is a reliability analysis of coronal Cobb angle measurements in adolescent idiopathic scoliosis obtained by multiple observers... - Use of C-reactive protein after spinal surgery: comparison with erythrocyte sedimentation rate as predictor of early postoperative infectious complicationsJames M Mok
Department of Orthopaedic Surgery, University of California, San Francisco, CA 94143 0728, USA
Spine (Phila Pa 1976) 33:415-21. 2008..This is a prospective observational study of erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) in a cohort of patients undergoing spinal surgery... - The effect on anterior column loading due to different vertebral augmentation techniquesDheera Ananthakrishnan
Orthopaedic Biomechanics Laboratory, San Francisco General Hospital, University of California, 1001 Potrero Ave, 3A36, San Francisco, CA 94110, USA
Clin Biomech (Bristol, Avon) 20:25-31. 2005..This directly relates to the clinical condition in that adjacent segment fractures sustained subsequent to either treatment is likely the result of overall disease progression, and not a direct result of the intervention... - Does instrumented anterior scoliosis surgery lead to kyphosis, pseudarthrosis, or inadequate correction in adults?Jason A Smith
Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, California, USA
Spine (Phila Pa 1976) 27:529-34. 2002..Retrospective review of cases in which a single solid rod was used for the anterior correction of thoracolumbar and lumbar idiopathic scoliosis in adults... - Posterior transpedicular corpectomy and reconstruction of the axial vertebra for metastatic tumorChristopher P Ames
UCSF Spine Center and Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California 94143, USA
J Neurosurg Spine 10:111-6. 2009..The authors report 3 cases in which a similar posterior transpedicular technique, adapted for the cervical spine, was used for intralesional resection of metastatic tumors of the axis... - Optimal reconstruction technique after C-2 corpectomy and spondylectomy: a biomechanical analysisJustin K Scheer
Biomechanical Testing Facility, Orthopaedic Trauma Institute, San Francisco General Hospital, San Fransisco, CA 94110, USA
J Neurosurg Spine 12:517-24. 2010..Authors of this biomechanical study are the first to evaluate a comprehensive set of reconstruction methods after C-2 resection to determine the optimal configuration depending on the degree of excision required... - Reconstruction of C-1 lateral mass with titanium mesh cage after resection of an aneurysmal bone cyst of the atlasVincent Y Wang
Department of Neurological Surgery, University of California, San Francisco, California, USA
J Neurosurg Spine 10:117-21. 2009..The authors present a case of an ABC at C-1 in a child who underwent resection of the lesion and reconstruction of the lateral mass with a titanium mesh cage... 
Biomechanics of cervical laminoplasty: kinetic studies comparing different surgical techniques, temporal effects and the degree of level involvementChristian M Puttlitz
Orthopaedic Bioengineering Laboratory, Department of Orthopaedic Surgery, University of California, San Francisco 94110, USA
Eur Spine J 13:213-21. 2004..Therefore, early physical therapy should be considered to preserve a more physiologic pattern of cervical range of motion...- Low-grade spondylolisthesisLionel N Metz
Department of Orthopedic Surgery, University of California, San Francisco School of Medicine, San Francisco, CA 94143, USA
Neurosurg Clin N Am 18:237-48. 2007..Whereas assessment of postoperative radiographic results lends insight to surgical technique, the true barometer of treatment success is improvement in patient quality of life... - A biomechanical analysis of C2 corpectomy constructsChristian M Puttlitz
Department of Mechanical Engineering, Colorado State University, 1374 Campus Delivery, Fort Collins, CO 80523 1374, USA
Spine J 7:210-5. 2007..Supplemental posterior instrumentation includes C0-C3 or C1-C3 fixation. Biomechanical comparisons of this C2 prosthesis with traditional fixation options have not been reported... - The validity of Lenke criteria for defining structural proximal thoracic curves in patients with adolescent idiopathic scoliosisAkin Cil
Department of Orthopedics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
Spine 30:2550-5. 2005..In this patient population, the question of what the upper extent of instrumentation should be could not be answered... - Does transverse apex coincide with coronal apex levels (regional or global) in adolescent idiopathic scoliosis?Emre Acaroglu
Hacettepe University Departments of Orthopaedics and Traumatology and Radiology, Ankara, Turkey
Stud Health Technol Inform 88:136-9. 2002