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Posterolateral Knee Reconstruction Versus Repair.

Mark McCarthy, T J Ridley, Matthew Bollier

    The Iowa Orthopaedic Journal
    |September 12, 2015
    PubMed
    Summary

    Knee posterolateral corner injuries treated with acute repair show comparable outcomes to reconstruction, especially for distally based avulsions within three weeks of injury.

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    Area of Science:

    • Orthopedic surgery
    • Knee biomechanics
    • Sports medicine

    Background:

    • Posterolateral corner knee injuries often have poor outcomes with repair compared to reconstruction.
    • This study aimed to compare outcomes of knee posterolateral corner injuries treated with repair versus reconstruction.
    • The hypothesis was that acute repairs yield results comparable to reconstructions.

    Purpose of the Study:

    • Compare outcomes of posterolateral knee injuries treated with repair versus reconstruction.
    • Evaluate clinical and radiographic results at a single institution.
    • Test the hypothesis that acute repairs have comparable results to reconstructions.

    Main Methods:

    • Identified patients undergoing posterolateral knee reconstruction or repair between 2000 and 2012.

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  • Collected outcome measures, performed clinical exams, and obtained varus stress radiographs.
  • Reviewed patient charts for complications and compared results to 20 control knees.

    • Main Results:

    • Evaluated 26 knees (17 reconstructions, 9 repairs) at an average of 38-42 months postoperatively.
    • No statistically significant differences in IKDC (68 vs 71) or Lysholm (83 vs 83) scores between groups.
    • Similar varus gapping at 0 and 20 degrees flexion; failure rates were 4.7% for reconstruction and 11.1% for repair.

    Conclusions:

    • Low failure rates observed in both surgical groups.
    • Posterolateral knee repair is recommended for distally based avulsions treated within 3 weeks with good tissue quality.
    • Acute repair may be a viable option for specific posterolateral corner knee injuries.