Spine
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A retrospective cross-sectional study. ⋯ 3.
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Randomized Controlled Trial Comparative Study
Adjacent Disc Degeneration After Lumbar Total Disc Replacement or Non-operative Treatment: A Randomized Study With Eight-year Follow-up.
A randomized controlled multicenter trial with 8-year follow-up. ⋯ 1.
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We retrospectively reviewed computed tomography (CT) records of patients in Japan and Sweden, which are both aging populations. ⋯ 3.
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A retrospective study, using prospectively collected data. ⋯ 4.
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Retrospective multicenter study. ⋯ 3.