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Arthroscopic partial meniscectomy: did it ever work?

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Arthroscopic partial meniscectomy (APM) for degenerative meniscal tears (DMTs) offers no proven benefits and may cause long-term harm. Current evidence suggests DMTs are part of osteoarthritis and not independently treatable with APM.

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Area of Science:

  • Orthopedics
  • Sports Medicine
  • Rheumatology

Background:

  • Arthroscopic partial meniscectomy (APM) is a common surgery for degenerative meniscal tears (DMTs).
  • High-quality evidence indicates APM provides no significant benefits for DMTs and may lead to long-term harm.
  • The effectiveness of APM for DMTs is questioned due to a lack of a valid disease model and supporting evidence.

Purpose of the Study:

  • To critically evaluate the historical and current effectiveness of APM in patients with DMTs.
  • To examine the biological plausibility and clinical evidence supporting APM for DMTs.
  • To determine if APM aligns with established medical practice and evidence-based indications.

Main Methods:

  • Narrative review of existing literature.
  • Analysis of basic research, pathoanatomy, and clinical evidence.
  • Assessment of the diagnostic reliability of DMT and its relationship to knee pain.

Main Results:

  • No credible disease model supports APM effectiveness for DMTs.
  • DMTs are likely part of a broader osteoarthritic process, not independently symptomatic.
  • APM treatment for DMTs lacks evidence-based indications and contradicts established medical principles.

Conclusions:

  • APM for DMTs is not supported by scientific evidence and may be based on a logical fallacy.
  • DMTs are not a reliable diagnosis for knee pain and are not independently treatable with APM.
  • Symptoms associated with DMTs are unlikely to be resolved by APM, especially considering their link to osteoarthritis.