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Does arthroscopic knee surgery work?

Aaron J Krych1, James L Carey2, Robert G Marx3

  • 1Department of Orthopaedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A.

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|March 20, 2014
PubMed
Summary
This summary is machine-generated.

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Partial meniscectomy surgery for degenerative knee tears showed no benefit over sham surgery in a Finnish trial. However, the study excluded key patient groups, limiting its generalizability for knee pain treatment.

Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Knee Biomechanics

Background:

  • Degenerative meniscal tears are common, often treated with arthroscopic partial meniscectomy.
  • The efficacy of partial meniscectomy for degenerative tears without osteoarthritis remains debated.
  • Previous studies have yielded conflicting results regarding surgical intervention for degenerative meniscal lesions.

Purpose of the Study:

  • To evaluate the clinical effectiveness of arthroscopic partial meniscectomy compared to sham surgery in patients with degenerative meniscal tears and no osteoarthritis.
  • To assess whether partial meniscectomy improves pain and function in this specific patient population.

Main Methods:

  • A randomized controlled trial involving 146 patients with degenerative meniscal tears.

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  • Patients were randomly assigned to undergo either arthroscopic partial meniscectomy or a sham surgical procedure.
  • Exclusion criteria included traumatic meniscal tears, locking symptoms, and radiographic osteoarthritis.

    • Main Results:

    • No significant difference in clinical outcomes (pain, function) was observed between the partial meniscectomy group and the sham surgery group.
    • The study highlighted limitations, including the exclusion of patients with traumatic tears and mechanical symptoms.
    • The presence of degenerative changes in the arthroscopy group complicated the attribution of symptoms to the meniscal tear versus chondral degeneration.

    Conclusions:

    • Arthroscopic partial meniscectomy did not demonstrate superior clinical outcomes compared to sham surgery for degenerative meniscal tears without osteoarthritis in this trial.
    • The study's limitations restrict its generalizability to the broader population undergoing partial meniscectomy.
    • The primary indication for partial meniscectomy should remain for patients with acute, well-localized joint line pain and mechanical symptoms unresponsive to conservative management.