Marcel F. Dvorak
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View article: Validation of the AO Spine Osteoporotic Fracture Classification – Effect of Geographical Region on Reliability and Reproducibility
Validation of the AO Spine Osteoporotic Fracture Classification – Effect of Geographical Region on Reliability and Reproducibility Open
Background Osteoporosis is a widespread disease with an increasing incidence. In 2018, the “Osteoporotic Fracture working group” affiliated with the German Society for Orthopaedic and Trauma Surgery (DGOU), introduced a novel classificatio…
View article: Surgical Outcomes and Patient Expectations and Satisfaction in Spine Surgery Stratified by Surgeon Age
Surgical Outcomes and Patient Expectations and Satisfaction in Spine Surgery Stratified by Surgeon Age Open
Importance There is a paucity of data comparing patient-reported outcomes across surgeon age. Prior work has focused on adverse event rates for surgeon age across a variety of surgical procedures. Objective To compare patient-reported outc…
View article: Gender Differences in Outcomes in Patients Treated for Thoracolumbar Burst Fractures Without Neurological Deficits: Prospective International Multicenter Study
Gender Differences in Outcomes in Patients Treated for Thoracolumbar Burst Fractures Without Neurological Deficits: Prospective International Multicenter Study Open
BACKGROUND AND OBJECTIVES: Exploring gender differences in outcomes after spinal surgery is essential. We aimed to assess gender differences in patients treated for thoracolumbar burst fractures without neurological deficit regarding Oswes…
View article: Validation of the AOSpine-DGOU Osteoporotic Fracture Classification – Effect of Surgical Experience, Surgical Specialty, Work-Setting and Trauma Center Level on Reliability and Reproducibility
Validation of the AOSpine-DGOU Osteoporotic Fracture Classification – Effect of Surgical Experience, Surgical Specialty, Work-Setting and Trauma Center Level on Reliability and Reproducibility Open
Study Design Cross-sectional survey. Objectives A cornerstone of classification systems is good reliability amongst different groups of classification users. Thus, the aim of this international validation study was to assess the reliabilit…
View article: Validating the Hierarchical Nature of the AO Spine Upper Cervical Spine Injury Classification System
Validating the Hierarchical Nature of the AO Spine Upper Cervical Spine Injury Classification System Open
Study Design. Global cross-sectional survey. Objective. To validate the hierarchical nature of the AO Spine Upper Cervical Spine Injury Classification (UCIC) across AO geographical regions/practice experience. Summary of Background Data. T…
View article: Surgical versus nonsurgical treatment of thoracolumbar burst fractures in neurologically intact patients: a cost-utility analysis
Surgical versus nonsurgical treatment of thoracolumbar burst fractures in neurologically intact patients: a cost-utility analysis Open
Our cost-utility analysis showed surgical management to be cost-effective at 2 years compared to nonoperative management in neurologically intact TL burst fractures from a societal perspective. This finding was maintained through the worki…
View article: Long-Term Survival for Traumatic Spinal Cord Injury in British Columbia, Canada: A Retrospective Evaluation of 20 Years of Linked Health Care Data
Long-Term Survival for Traumatic Spinal Cord Injury in British Columbia, Canada: A Retrospective Evaluation of 20 Years of Linked Health Care Data Open
Patients living with traumatic spinal cord injury (TSCI) have seen many improvements in care and treatment, but life expectancy still falls below the general population. Measuring long-term survival rates and characterizing causes of death…
View article: Incomplete (A3) versus complete (A4) thoracolumbar burst fractures: Results from a prospective international multicenter cohort study
Incomplete (A3) versus complete (A4) thoracolumbar burst fractures: Results from a prospective international multicenter cohort study Open
View article: An international prospective multicenter study of bracing vs no bracing for the nonoperative management of A3/A4 thoracolumbar burst fractures
An international prospective multicenter study of bracing vs no bracing for the nonoperative management of A3/A4 thoracolumbar burst fractures Open
View article: Epidemiology of Spinal Cord Injury in British Columbia, Canada: 20 Years of Population-Based Administrative Data
Epidemiology of Spinal Cord Injury in British Columbia, Canada: 20 Years of Population-Based Administrative Data Open
Traumatic spinal cord injury (TSCI) is a debilitating condition that can have significant effects on physical function and overall quality of life. Mechanisms of injury can vary from major trauma to low-energy falls. There has been a recen…
View article: Historical Perspectives on the Evolution of Spino-Pelvic Fixation and its Implications on Clinical Care A Narrative Review
Historical Perspectives on the Evolution of Spino-Pelvic Fixation and its Implications on Clinical Care A Narrative Review Open
Study Design Broad narrative review. Objectives To review and summarize the evolution of spinopelvic fixation (SPF) and its implications on clinical care. Methods A thorough review of peer-reviewed literature was performed on the historica…
View article: Streamlining the Journey of Research Into Clinical Practice: Making Your Patients and Practice Flourish Optimizing Management and Minimizing Risk of Osteoporotic Vertebral Fractures – Perspectives of the AO Spine KF Trauma and Infection Group Key Opinion Leaders
Streamlining the Journey of Research Into Clinical Practice: Making Your Patients and Practice Flourish Optimizing Management and Minimizing Risk of Osteoporotic Vertebral Fractures – Perspectives of the AO Spine KF Trauma and Infection Group Key Opinion Leaders Open
Study Design Literature review with clinical recommendations. Objective To highlight important studies about osteoporotic spinal fractures (OF) that may be integrated into clinical practice based on the assessment of the AO Spine KF Trauma…
View article: Out-of-hours emergent surgery for degenerative spinal disease in Canada: a retrospective cohort study from a national registry
Out-of-hours emergent surgery for degenerative spinal disease in Canada: a retrospective cohort study from a national registry Open
View article: Spinal Cord Injuries Secondary to Mountain Biking Accidents — A Cause for National Alarm
Spinal Cord Injuries Secondary to Mountain Biking Accidents — A Cause for National Alarm Open
While much attention in North America has been placed on hockey and other high impact sports as causes of spinal cord injury (SCI), over the past two decades, our Level 1 trauma center has experienced a much higher number of SCI from off-r…
View article: The Influence of Comminution and Posterior Ligamentous Complex Integrity on Treatment Decision Making in Thoracolumbar Burst Fractures Without Neurologic Deficit?
The Influence of Comminution and Posterior Ligamentous Complex Integrity on Treatment Decision Making in Thoracolumbar Burst Fractures Without Neurologic Deficit? Open
Study Design A prospective study. Objective to evaluate the impact of vertebral body comminution and Posterior Ligamentous Complex (PLC) integrity on the treatment recommendations of thoracolumbar fractures among an expert panel of 22 spin…
View article: What Factors Influence Surgeons in Decision-Making in Thoracolumbar Burst Fractures? A Survey-Based Investigation of a Panel of Spine Surgery Experts
What Factors Influence Surgeons in Decision-Making in Thoracolumbar Burst Fractures? A Survey-Based Investigation of a Panel of Spine Surgery Experts Open
Study Design Cross-sectional survey study. Objective To investigate factors affecting decision-making in thoracolumbar burst-fractures without neurologic deficit. Methods A 40-question survey addressing expert-related, economic, and radiol…
View article: The AO Spine Thoracolumbar Injury Classification System and Treatment Algorithm in Decision Making for Thoracolumbar Burst Fractures Without Neurologic Deficit
The AO Spine Thoracolumbar Injury Classification System and Treatment Algorithm in Decision Making for Thoracolumbar Burst Fractures Without Neurologic Deficit Open
Study Design Prospective Observational Study. Objective To determine the alignment of the AO Spine Thoracolumbar Injury Classification system and treatment algorithm with contemporary surgical decision making. Methods 183 cases of thoracol…
View article: Expert Opinion, Real-World Classification, and Decision-Making in Thoracolumbar Burst Fractures Without Neurologic Deficits?
Expert Opinion, Real-World Classification, and Decision-Making in Thoracolumbar Burst Fractures Without Neurologic Deficits? Open
Study Design Retrospective analysis of prospectively collected data. Objectives To compare decision-making between an expert panel and real-world spine surgeons in thoracolumbar burst fractures (TLBFs) without neurological deficits and ana…
View article: Understanding Decision Making as It Influences Treatment in Thoracolumbar Burst Fractures Without Neurological Deficit: Conceptual Framework and Methodology
Understanding Decision Making as It Influences Treatment in Thoracolumbar Burst Fractures Without Neurological Deficit: Conceptual Framework and Methodology Open
Study Design This paper presents a description of a conceptual framework and methodology that is applicable to the manuscripts that comprise this focus issue. Objectives Our goal is to present a conceptual framework which is relied upon to…
View article: Predictive Algorithm for Surgery Recommendation in Thoracolumbar Burst Fractures Without Neurological Deficits
Predictive Algorithm for Surgery Recommendation in Thoracolumbar Burst Fractures Without Neurological Deficits Open
Study design Predictive algorithm via decision tree Objectives Artificial intelligence (AI) remain an emerging field and have not previously been used to guide therapeutic decision making in thoracolumbar burst fractures. Building such mod…
View article: Summary and Future Strategies in Anticipation of the A3 A4 Fracture Study Results
Summary and Future Strategies in Anticipation of the A3 A4 Fracture Study Results Open
View article: Interobserver Reliability in the Classification of Thoracolumbar Fractures Using the AO Spine TL Injury Classification System Among 22 Clinical Experts in Spine Trauma Care
Interobserver Reliability in the Classification of Thoracolumbar Fractures Using the AO Spine TL Injury Classification System Among 22 Clinical Experts in Spine Trauma Care Open
Study Design Reliability study utilizing 183 injury CT scans by 22 spine trauma experts with assessment of radiographic features, classification of injuries and treatment recommendations. Objectives To assess the reliability of the AOSpine…
View article: Using Equipoise to Determine the Radiographic Characteristics Leading to Agreement on Best Treatment for Thoracolumbar Burst Fractures Without Neurologic Deficits
Using Equipoise to Determine the Radiographic Characteristics Leading to Agreement on Best Treatment for Thoracolumbar Burst Fractures Without Neurologic Deficits Open
Study Design Retrospective analysis of prospectively collected data. Objectives Our goal was to assess radiographic characteristics associated with agreement and disagreement in treatment recommendation in thoracolumbar (TL) burst fracture…
View article: Neurologically intact thoracolumbar burst fractures (AO spine A3, A4) improve on ODI equally when treated surgically versus non-operatively
Neurologically intact thoracolumbar burst fractures (AO spine A3, A4) improve on ODI equally when treated surgically versus non-operatively Open
View article: Pattern of neurological recovery in persons with an acute cervical spinal cord injury over the first 14 days post injury
Pattern of neurological recovery in persons with an acute cervical spinal cord injury over the first 14 days post injury Open
Introduction Following a traumatic spinal cord injury (SCI) it is critical to document the level and severity of injury. Neurological recovery occurs dynamically after injury and a baseline neurological exam offers a snapshot of the patien…
View article: Effectiveness of prophylactic intranasal photodynamic disinfection therapy and chlorhexidine gluconate body wipes for surgical site infection prophylaxis in adult spine surgery
Effectiveness of prophylactic intranasal photodynamic disinfection therapy and chlorhexidine gluconate body wipes for surgical site infection prophylaxis in adult spine surgery Open
Preoperative nPDT-CHG administration is an effective prophylactic strategy for spinal SSIs, with significant cost savings. Given its rapid action, minimal risk of antimicrobial resistance, broad-spectrum activity and high compliance rate, …
View article: Nationwide emergency department visits for pediatric traumatic spinal cord injury in the United States, 2016–2020
Nationwide emergency department visits for pediatric traumatic spinal cord injury in the United States, 2016–2020 Open
Introduction Traumatic spinal cord injury (tSCI) is a debilitating neurological condition resulting in lifelong disability for many individuals. The primary objectives of our study were to describe national trends in incident emergency dep…
Canadian Spine SocietyCPSS-1. Abstract ID 108. Radiographic reporting in adolescent idiopathic scoliosis: Is there a discrepancy between radiologists’ reports and surgeons’ assessments?CPSS-2. Abstract ID 21. Pediatric posterior spinal deformity correction: 30-day postoperative infection rate and risk factorsCPSS-3. Abstract ID 17. “Ultra-low dose” computed tomography without sedation is feasible and should be considered as part of the preoperative optimization pathway in paediatric patients with neuromuscular scoliosisCPSS-4. Abstract ID 20. SeeSpine: a novel surface topography smartphone application for monitoring curve progression in adolescent idiopathic scoliosisCPSS-5. Abstract ID 78. Pilot study: a machine learning algorithm for the detection of adolescent idiopathic scoliosis from images taken with modern smartphone technologyCPSS-6. Abstract ID 101. Preoperative parameters influencing vertebral body tethering outcomes: patient characteristics play an important role in determining the outcomes at 2 years after surgeryCPSS-7. Abstract ID 63. Preoperative bending radiographs are the best predictor of scoliosis correction on the first erect radiograph in vertebral body tethering: a single-centre retrospective studyCPSS-8. Abstract ID 18. Adverse events after zoledronate infusion in medically complex patients with neuromuscular scoliosisCPSS-9. Abstract ID 5. Sequential rod rolling for surgical correction of Lenke type 2 adolescent idiopathic scoliosis: a 3D analysisCPSS-10. Abstract ID 123. A comparative study of protocols for spinal casting as a surgical delay strategy in severe early-onset scoliosisA-11. Abstract ID 50. Does the type of pelvic fixation affect pelvic incidence after adult spinal deformity surgery? A retrospective analysisA-12. Abstract ID 51. How does pelvic fixation affect the compensatory mechanisms after adult spinal deformity surgery? A retrospective analysisA-13. Abstract ID 44. Development of a biomechanical model to identify risk factors in sagittal alignment contributing to proximal junctional kyphosisA-14. Abstract ID 32. Biomechanical characterization of semirigid constructs and the potential effect on proximal junctional kyphosisA-15. Abstract ID 65. Early adjacent disc characteristics are not associated with reoperation in short-segment lumbar fusionsA-16. Abstract ID 39. Concurrent validation of a novel inertial measurement unit–based method to evaluate spinal motion in clinical settingsA-17. Abstract ID 68. Distal lordosis is associated with reoperation for adjacent segment disease in patients with degenerative lumbar fusionA-18. Abstract ID 69. Automatic extraction of spinopelvic parameters using artificial intelligence methods and a review on the effects of spine stiffness, spinal fusion and spinopelvic parameters on lower limb motion and total hip arthroplasty outcomesA-19. Abstract ID 38. Gender differences in fusion rates in the treatment of degenerative lumbar spondylolisthesis: analysis from the CSORN prospective degenerative lumbar spondylolisthesis studyA-20. Abstract ID 29. L3–4 hyperlordosis after a reduction in lower lumbar lordosis with L4–L5 fusion surgery is common in patients requiring L3–4 revision surgery for adjacent segment diseaseB-21. Abstract ID 40. Predictors of dynamic instability in the decision to fuse in degenerative lumbar spondylolisthesis: results from the Canadian Spine Outcomes and Research Network prospective degenerative lumbar spondylolisthesisstudyB-22. Abstract ID 49. Impact of preoperative insomnia on poor postoperative pain control after elective spine surgery and the Modified Calgary Postoperative Pain After Spine Surgery scoreB-23. Abstract ID 115. Influence of high pelvic incidence on operative difficulty in patients treated surgically for degenerative lumbar spondylolisthesisB-24. Abstract ID 45. Reoperation rates for adjacent segment disease in degenerative lumbar fusion surgery: a comparison between minimally invasive versus open surgical approachesB-25. Abstract ID 118. Assessment of changes in opioid utilization 1 year after elective spine surgery: a Canadian Spine Outcomes and Research Network studyB-26. Abstract ID 93. Preoperative neuroleptic and opioid use effects on postoperative pain and disability after spinal surgery for lumbar radiculopathyB-27. Abstract ID 52. The importance of lower extremity compensation mechanisms in lumbar degenerative pathology: a retrospective analysisB-28. Abstract ID 107. Persistent poor sleep is associated with worse pain and quality of life in patients with degenerative thoracolumbar conditions undergoing surgery: a retrospective cohort studyB-29. Abstract ID 126. Opioid use in low back pain is associated with increased utilization of health care services and likelihood of work absenteeismB-30. Abstract ID 53. Wait times for degenerative lumbar spine consultation and surgery: a repeated cross-sectional analysis of the Canadian Spine Outcomes and Research NetworkC-31. Abstract ID 33. Pati Open
View article: Incidence and prevalence of traumatic spinal cord injury in Canada using health administrative data
Incidence and prevalence of traumatic spinal cord injury in Canada using health administrative data Open
Introduction Incidence and prevalence data are needed for the planning, funding, delivery and evaluation of injury prevention and health care programs. The objective of this study was to estimate the Canadian traumatic spinal cord injury (…
View article: Impact of Specialized Versus Non-Specialized Acute Hospital Care on Survival Among Patients With Acute Incomplete Traumatic Spinal Cord Injuries: A Population-Based Observational Study from British Columbia, Canada
Impact of Specialized Versus Non-Specialized Acute Hospital Care on Survival Among Patients With Acute Incomplete Traumatic Spinal Cord Injuries: A Population-Based Observational Study from British Columbia, Canada Open
Given the complexity of care necessitated after an acute traumatic spinal cord injury (SCI), it seems intuitively beneficial for such care to be delivered at hospitals with specialized SCI expertise. Demonstrating these benefits is not str…