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BACKGROUND AND PURPOSE We performed a systematic review and a survey in order to (1) evaluate the evidence for the impact of spine registries on the quality of spine care, and with that, on patient-related outcomes, and (2) evaluate the methodology used to organize, analyze, and report the "quality of spine care" from spine registries. METHODS To study(More)
STUDY DESIGN A systematic review of randomized controlled trials. OBJECTIVE To determine which technique of anterior cervical interbody fusion (ACIF) gives the best outcome in patients with cervical degenerative disc disease. SUMMARY OF BACKGROUND DATA The number of surgical techniques for decompression and ACIF as treatment for cervical degenerative(More)
STUDY DESIGN Fifty-two patients with degenerative disc disease underwent single- or double-level anterior lumbar interbody fusion with SynCage and additional posterior fixation as treatment for degenerative disc disease and were prospectively followed for 4 years. OBJECTIVES To test the clinical performance of anterior lumbar interbody fusion with(More)
BACKGROUND The functional and clinical basis on which to choose whether or not to retain the posterior cruciate ligament during total knee arthroplasty surgery remained unclear after a Cochrane systematic review and meta-analysis in 2005, which contained eight clinical trials. Several new trials have been conducted since then. Hence, an update of the review(More)
To prevent patella infera in open wedge high tibial osteotomy, a new operation technique was developed. Instead of a proximal tibial tuberosity osteotomy, a distal osteotomy was performed and the tuberosity was fixed with one screw to the tibia. Initial experience in 17 patients was evaluated and compared with results of 20 patients with open wedge high(More)
STUDY QUESTION Is interspinous process device implantation more effective in the short term (eight weeks) than conventional surgical decompression for patients with intermittent neurogenic claudication due to lumbar spinal stenosis? SUMMARY ANSWER The use of interspinous implants did not result in a better outcome than conventional decompression, but the(More)
PURPOSE Cauda equina syndrome (CES) is a rare complication of lumbar disk herniation. Although micturition, defecation and/or sexual function are by definition affected, little seems to be known about long-term outcome. Aim of this study is to review current literature on outcome of micturition, defecation and sexual function in CES due to lumbar disk(More)
BACKGROUND Spinal fusion with the use of autograft is a commonly performed procedure. However, harvesting of bone from the iliac crest is associated with complications. Bone morphogenetic proteins (BMPs) are extensively used as alternatives, often without sufficient evidence of safety and efficacy. The purpose of this study was to investigate(More)
The purpose of this study was to answer 2 questions: Does the posterior cruciate ligament (PCL) produce femoral rollback in a single-design, cruciate-sparing total knee arthroplasty (TKA)? Does the PCL prevent posterior tibial displacement when it is retained after a single-design, cruciate-sparing TKA? Knee kinematics and limits of motion were measured(More)
Patella position can be measured on axial radiographs and many measurement techniques have been described in literature. The goal of this study was to evaluate the inter- and intraobserver reproducibility of measurement techniques available in the literature for patients with a knee prosthesis. Fifty axial patella radiographs from knee prostheses were used(More)