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Related Experiment Videos

Knee closure in total knee replacement: a randomized prospective trial

B A Masri1, R S Laskin, R E Windsor

  • 1Department of Orthopaedics, University of British Columbia, Vancouver, Canada.

Clinical Orthopaedics and Related Research
|October 1, 1996
PubMed
Summary

Knee flexion during capsular closure in total knee replacement does not impact early recovery. This study found no significant differences in rehabilitation or complication rates regardless of knee position, aiding patient outcomes in knee surgery.

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Total knee replacement (TKR) is a common procedure for end-stage knee arthritis.
  • Surgical techniques, including capsular closure, are continually refined to optimize patient outcomes.
  • The optimal positioning of the knee during capsular closure remains a subject of clinical interest.

Purpose of the Study:

  • To determine if the degree of knee flexion during capsular closure affects early rehabilitation after total knee replacement.
  • To compare functional recovery and complication rates between patients whose capsular closure was performed with the knee in extension versus flexion.

Main Methods:

  • A randomized prospective study involving 75 total knee replacements in 64 patients.
  • Patients were randomized to capsular closure with the knee in full extension or flexion.

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  • Data collected included range of motion, transfer ability, mobility aid use, hospital discharge, and 2-3 month functional scores (Knee Society system).
  • Patients were stratified by surgeon and prosthesis type (posterior cruciate ligament retaining vs. posterior stabilized).

    • Main Results:

    • No statistically significant differences were observed in early rehabilitation parameters (range of motion, transfer, mobility) between the extension and flexion groups.
    • Functional outcomes at 2-3 months postoperatively showed no significant differences between the groups.
    • Complication rates were similar between the two groups, irrespective of stratification by surgeon or prosthesis type.

    Conclusions:

    • The degree of knee flexion at the time of capsular closure in total knee replacement has no discernible effect on early rehabilitation.
    • Surgical positioning during closure does not appear to influence short-term functional recovery or complication rates in TKR patients.