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Michael G Fehlings, So Kato, Lawrence G Lenke, Hiroaki Nakashima, Narihito Nagoshi, Christopher I Shaffrey, Kenneth M C Cheung, Leah Carreon, Mark B Dekutoski, Frank J Schwab, Oheneba Boachie-Adjei, Khaled M Kebaish, Christopher P Ames, Yong Qiu, Yukihiro Matsuyama, Benny T Dahl, Hossein Mehdian, Ferran Pellisé-Urquiza, Stephen J Lewis, Sigurd H Berven
BACKGROUND CONTEXT: Significant variability in neurologic outcomes following surgical correction for adult spinal deformity (ASD) has been reported. Risk factors for decline in neurologic motor outcomes are poorly understood. PURPOSE: The objective of the present investigation was to identify the risk factors for post-operative neurological motor decline in patients undergoing complex ASD surgery. STUDY DESIGN/SETTING: A prospective international multicenter cohort study...
February 13, 2018: Spine Journal: Official Journal of the North American Spine Society
Asdrubal Falavigna, Miguel Bertelli Ramos, Alexandre Sadao Iutaka, Cristiano Magalhães Menezes, Juan Emmerich, Nestor Taboada, K Daniel Riew
OBJECTIVE: Spine surgeons are exposed to high amounts of radiation from fluoroscopic procedures during their lifetime. The objective is to evaluate spine surgeons' knowledge and attitude regarding radiation exposure during spine surgery. METHODS: We developed a questionnaire encompassing questions about surgeon's characteristics and surgeon's knowledge and attitude regarding radiation exposure during spine surgery. A survey was performed with the members of AOSpine Latin America...
January 31, 2018: World Neurosurgery
Anne L Versteeg, Arjun Sahgal, Laurence D Rhines, Daniel M Sciubba, James M Schuster, Michael H Weber, Peter Pal Varga, Stefano Boriani, Chetan Bettegowda, Michael G Fehlings, Michelle J Clarke, Paul M Arnold, Ziya L Gokaslan, Charles G Fisher
BACKGROUND: The Spine Oncology Study Group Outcomes Questionnaire (SOSGOQ) was developed as the first spine oncology-specific health-related quality of life (HRQOL) measure. This study evaluated the psychometric properties and clinical validity of the SOSGOQ in a diverse cohort of patients with spinal metastases. METHODS: An international, multicenter, prospective observational cohort study including patients with spinal metastases who underwent surgery and/or radiotherapy was conducted by the AOSpine Knowledge Forum Tumor...
February 6, 2018: Cancer
Pasquale Donnarumma, Vincenzo Bozzini, Gaetano Rizzi, Arturo Berardi, Gaetano Merlicco
Study Design: This was a retrospective cohort study. Objective: To report our 10-year experience of closed reduction using Crutchfield traction followed by anterior cervical discectomy and fusion within 12 h from injury for C-type subaxial cervical fractures (according to the AOSpine classification system). Methods: Clinical records and neuroimaging were retrospectively reviewed. Surgical details were provided. Results: A total of 22 patients were included in the study...
October 2017: Journal of Craniovertebral Junction and Spine
Asdrubal Falavigna, Orlando Righesso, Pedro Guarise da Silva, Felix Adolfo Sanchez Chavez, Ericson Sfreddo, Leandro Pelegrini de Almeida, Manuel Jose Valencia Carrasco, Andrei Fernandes Joaquim
OBJECTIVE: This retrospective study reports the epidemiology, clinical aspects, and management of spinal trauma in children and adolescents. METHODS: Multicenter study of 215 cases of spinal trauma in individuals <18 years of age. All patients were submitted to preoperative and postoperative radiologic and clinical evaluation. The fractures were classified according to the AOSpine fracture classification. Neurological evaluation was performed using the Frankel scale at admission to hospital and at the last follow-up...
February 2018: World Neurosurgery
Cornelius Jacobs, Tony Hartwig, Philip P Rößler, Dan Meila, Igor Nikiforov, Milena M Plöger, Christof Burger, Sebastian Scheidt
BACKGROUND: Vertebral body fractures (VBF) can be caused by various trauma mechanisms. The AOSpine classification system differentiates three main types of fractures according to the grade of instability. How the increasing energy of various accident mechanisms changes the complexity of the individual fracture, its localization and the occurrence of further fractures has not yet been finally investigated. OBJECTIVE: What influence do traumatic events with different kinematics have on the localization, complexity and number of VBF in the thoracic and lumbar spine? MATERIAL AND METHODS: In this retrospective study data from patients with a freshly traumatized VBF were analyzed...
October 25, 2017: Der Unfallchirurg
Matthew F Gary
No abstract text is available yet for this article.
October 18, 2017: Neurosurgery
So Kato, Aria Nouri, Hamed Reihani-Kermani, Yasushi Oshima, Joseph Cheng, Michael G Fehlings
STUDY DESIGN: Sub-analysis of the prospective AOSpine CSM North America and International studies. OBJECTIVE: To describe the post-operative changes in MRI spinal cord signal intensity in degenerative cervical myelopathy (DCM) patients and to investigate the impact of its post-operative resolution on clinical outcomes. SUMMARY OF BACKGROUND DATA: When examining the spinal cord, hyperintensity found in MRI T2-weighted images and hypointensity in T1-weighted images are known to correlate with pre-operative severity of DCM and to predict post-operative neurological recovery...
September 26, 2017: Spine
Asdrubal Falavigna, Diego Cassol Dozza, Alisson R Teles, Chung Chek Wong, Giuseppe Barbagallo, Darrel Brodke, Abdulaziz Al-Mutair, Zoher Ghogawala, K Daniel Riew
OBJECTIVES: Patient-reported outcome measures (PROMs) are the most widely accepted means of measuring outcomes after spine procedures. We sought to determine the current status of worldwide use of PROMs in Latin America (LA), Europe (EU), Asia Pacific (AP), North America (NA), and Middle East (ME) to determine the barrier to its full implementation. METHODS: A questionnaire survey was sent by e-mail to members of AOSpine to evaluate their familiarity and use of PROMs instruments and to assess the barriers to their use in spine care practice in LA, EU, AP, NA, and ME...
December 2017: World Neurosurgery
Raphaële Charest-Morin, Michael S Dirks, Shreyaskumar Patel, Stefano Boriani, Alessandro Luzzati, Michael G Fehlings, Charles G Fisher, Mark B Dekutoski, Richard Williams, Nasir A Quraishi, Ziya L Gokaslan, Chetan Bettegowda, Niccole M Germscheid, Peter P Varga, Laurence D Rhines
STUDY DESIGN: Multicenter, ambispective observational study. OBJECTIVES: To quantify mortality and local recurrence after surgical treatment of spinal Ewing's sarcoma (ES) and to determine whether an Enneking appropriate procedure and surgical margins (en bloc resection with wide/marginal margins) are associated with improved prognosis. SUMMARY OF BACKGROUND DATA: Treatment of primary ES of the spine is complex. Ambiguity remains regarding the role and optimal type of surgery in the treatment of spinal ES...
August 23, 2017: Spine
So Kato, Jean-Christophe Murray, Brian K Kwon, Gregory D Schroeder, Alexander R Vaccaro, Michael G Fehlings
Traumatic thoracolumbar burst fractures are one of the most common forms of spinal trauma with the majority occurring at the junctional area where mechanical load is maximal (AOSpine Thoracolumbar Spine Injury Classification System Subtype A3 or A4). Burst fractures entail the involvement of the middle column, and therefore, they are typically associated with bone fragment in the spinal canal, which may cause compression of the spinal cord, conus medullaris, cauda equina, or a combination of these. Fortunately, approximately half of the patients with thoracolumbar burst fractures are neurologically intact due to the wide canal diameter...
September 2017: Journal of Orthopaedic Trauma
Cumhur Oner, Said Sadiqi, Anne Mechteld Lehr, Gregory D Schroeder, Alexander R Vaccaro
This article focuses on patient-reported and clinician-reported outcome measures in spine trauma care. The measurement of the quality of care and functional and health-related quality of life outcomes of spine trauma patients has become increasingly important. However, no outcome instrument is specifically designed, validated, or universally adapted for this specific patient population. Issues specific to spinal trauma patients may not be adequately addressed by the instruments that are currently used in the literature and the daily clinical practice...
September 2017: Journal of Orthopaedic Trauma
Bizhan Aarabi, Cumhur Oner, Alexander R Vaccaro, Gregory D Schroeder, Noori Akhtar-Danesh
INTRODUCTION: Cervical spine injury classification systems should be simple, easy to relate and remember, reliable guide for surgical planning, and predictor of outcome in clinical settings. We investigated whether the AOSpine subaxial cervical spine classification system predicted injury severity and neurologic outcome. MATERIAL AND METHODS: We analyzed the relevant clinical, imaging, management, and American Spinal Injury Association (ASIA) impairment scale (AIS) grade conversion of 92 AIS grades A-C patients with cervical spine injury...
September 2017: Journal of Orthopaedic Trauma
Klaus J Schnake, Gregory D Schroeder, Alexander R Vaccaro, Cumhur Oner
Numerous classification systems for subaxial and thoracolumbar spine injuries were proposed in the past with the attempt to facilitate communication between physicians. The AO-Magerl, thoracolumbar system, and Subaxial Cervical Spine Injury Classification systems are all well known, but did not achieve universal international adoption. A group of international experienced spine trauma surgeons were brought together by AOSpine with the goal to develop a comprehensive yet simple classification system for spinal trauma...
September 2017: Journal of Orthopaedic Trauma
Elke Rometsch, Maarten Spruit, Roger Härtl, Robert Alton McGuire, Brigitte Sandra Gallo-Kopf, Vasiliki Kalampoki, Frank Kandziora
STUDY DESIGN: Systematic literature review with meta-analysis. OBJECTIVE: Thoracolumbar (TL) fractures can be treated conservatively or surgically. Especially, the treatment strategy for incomplete and complete TL burst fractures (A3 and A4, AOSpine classification) in neurologically intact patients remains controversial. The aim of this work was to collate the clinical evidence on the respective treatment modalities. METHODS: Searches were performed in PubMed and the Web of Science...
June 2017: Global Spine Journal
Shanmuganathan Rajasekaran, Rishi Mugesh Kanna, Gregory D Schroeder, Frank Cumhur Oner, Luiz Vialle, Jens Chapman, Marcel Dvorak, Michael Fehlings, Ajoy Prasad Shetty, Klaus Schnake, Frank Kandziora, Alexander R Vaccaro
STUDY DESIGN: Prospective survey-based study. OBJECTIVES: The AO Spine thoracolumbar injury classification has been shown to have good reproducibility among clinicians. However, the influence of spine surgeons' clinical experience on fracture classification, stability assessment, and decision on management based on this classification has not been studied. Furthermore, the usefulness of varying imaging modalities including radiographs, computed tomography (CT) and magnetic resonance imaging (MRI) in the decision process was also studied...
June 2017: Global Spine Journal
S Tim Yoon, Jeffrey A Konopka, Jeffrey C Wang, Jim A Youssef, Hans Joerg Meisel, Darrel S Brodke, Jong-Beom Park
STUDY DESIGN: Cross-sectional survey study. OBJECTIVE: To determine what are the most commonly used graft materials in anterior cervical discectomy and fusion and whether the choice of graft is affected by surgeon's training, years in practice, geographic location, practice setting, or surgeon's perceived difficulty in achieving fusion. METHODS: A 23-question survey was sent out to 5334 surgeons using the Global AO Spine database. Response data was then stratified into surgeon training, years of practice, practice type, and global region...
August 2017: Global Spine Journal
Sigurd H Berven, Steven J Kamper, Niccole M Germscheid, Benny Dahl, Christopher I Shaffrey, Lawrence G Lenke, Stephen J Lewis, Kenneth M Cheung, Ahmet Alanay, Manabu Ito, David W Polly, Yong Qiu, Marinus de Kleuver
PURPOSE: Evaluation and surgical management for adult spinal deformity (ASD) patients varies between health care providers. The purpose of this study is to identify appropriateness of specific approaches and management strategies for the treatment of ASD. METHODS: From January to July 2015, the AOSpine Knowledge Deformity Forum performed a modified Delphi survey where 53 experienced deformity surgeons from 24 countries, rated the appropriateness of management strategies for multiple ASD clinical scenarios...
August 5, 2017: European Spine Journal
Philipp Schleicher, Matti Scholz, Frank Kandziora, Andreas Badke, Florian Hans Brakopp, Helmut Klaus Friedrich Ekkerlein, Erol Gercek, Rene Hartensuer, Philipp Hartung, Jan-Sven Gilbert Jarvers, Philipp Kobbe, Stefan Matschke, Robert Morrison, Christian W Müller, Miguel Pishnamaz, Maximilian Reinhold, Klaus John Schnake, Gregor Schmeiser, Gregor Stein, Bernhard Ullrich, Thomas Weiß, Volker Zimmermann
In a consensus process during four sessions in 2016, the working group "lower cervical spine" of the German Society for Orthopedic and Trauma Surgery (DGOU), formulated "Therapeutic Recommendations for the Lower Cervical Spine", taking into consideration the current literature. Therapeutic goals are a permanently stable, painless cervical spine and the protection against secondary neurologic damage while retaining the greatest possible amount of motion and spinal profile. Due to its ease of use and its proven good reliability, the AOSpine classification for subaxial cervical injuries should be used...
October 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
Anne L Versteeg, Nicolas Dea, Stefano Boriani, Peter P Varga, Alessandro Luzzati, Michael G Fehlings, Mark H Bilsky, Laurence D Rhines, Jeremy J Reynolds, Mark B Dekutoski, Ziya L Gokaslan, Niccole M Germscheid, Charles G Fisher
OBJECTIVE Osteoblastoma is a rare primary benign bone tumor with a predilection for the spinal column. Although of benign origin, osteoblastomas tend to behave more aggressively clinically than other benign tumors. Because of the low incidence of osteoblastomas, evidence-based treatment guidelines and high-quality research are lacking, which has resulted in inconsistent treatment. The goal of this study was to determine whether application of the Enneking classification in the management of spinal osteoblastomas influences local recurrence and survival time...
September 2017: Journal of Neurosurgery. Spine
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