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Comparative Study
. 2020 May;99(19):e20077.
doi: 10.1097/MD.0000000000020077.

The outcomes of post-traumatic arthritis vs osteoarthritis following primary total knee arthroplasty: A protocol of matched cohort study

Jin-Quan Li  1 , Hao-Xu, Ze-Gan Sun, Qing-Song Huang, Xiao-Dong Yao
Affiliations
Comparative Study

The outcomes of post-traumatic arthritis vs osteoarthritis following primary total knee arthroplasty: A protocol of matched cohort study

Jin-Quan Li et al. Medicine (Baltimore). 2020 May.

Expression of concern in

  • Expression of Concern: Study Protocols.
    [No authors listed] [No authors listed] Medicine (Baltimore). 2025 Nov 7;104(45):e46330. doi: 10.1097/MD.0000000000046330. Medicine (Baltimore). 2025. PMID: 41204616 Free PMC article. No abstract available.

Abstract

Background: Total knee arthroplasty (TKA) for treatment of end-stage post-traumatic arthritis (PTA) has specific technical difficulties and complications. The aim of this study was to examine the outcome of TKA after PTA and to compare it with a cohort osteoarthritis (OA).

Methods: A retrospective review of patients undergoing primary TKA at a single university hospital from 2013 to 2016 was performed. A minimum follow-up of 4 years was required. Patients in the study group were matched 1:2 with patients in the cohort group based on the following criteria: age at time of TKA (±3 years), body mass index (±3 points), sex, and American Society of Anesthesiologists score (±1 point). Outcome measures included surgical time, intraoperative complications, Oxford Knee Score, range of motion, postoperative complications, and revision.

Results: This clinical trial is expected to determine whether PTA is associated with increased risks of complications and revision or reduced functional outcomes following TKA.

Trial registration: This study protocol was registered in Research Registry (researchregistry5455).

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Conflict of interest statement

The authors report no conflicts of interest.

References

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