Spine
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Multicenter Study Comparative Study
Do occupational Risks for Low Back Pain Differ from Risks for Specific Lumbar Disc Diseases? Results of the German Lumbar Spine Study (EPILIFT).
A multicenter, population based, case-control study. ⋯ 4.
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Comparative Study
Comparison of Outcomes Between C1-C2 Screw-hook Fixation and C1-C2 Screw-rod Fixation for Treating Reducible Atlantoaxial Dislocation.
Retrospective comparative study. ⋯ 3.
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Comparative Study
Safety and Accuracy of Freehand Versus Navigated Iliac Screws: Results From 222 Screw Placements.
Retrospective review. ⋯ 4.
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Retrospective study of prospectively collected data. ⋯ 3.
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Cadaveric radiostereometric analysis study. ⋯ N/A.