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[Ligament instability after arthroscopic partial medial meniscus resection]

C Rangger1, W Glötzer, K P Benedetto

  • 1Universitätsklinik für Unfallchirurgie Innsbruck.

Der Unfallchirurg
|August 1, 1994
PubMed
Summary

Partial arthroscopic medial meniscectomy for meniscus lesions can lead to increased knee instability. Post-surgery follow-up revealed significant anterior and medial instability in a notable percentage of patients.

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Biomechanics

Background:

  • Medial meniscus lesions are common knee injuries.
  • Arthroscopic partial medial meniscectomy is a standard surgical treatment.
  • Knee stability is crucial for joint function.

Purpose of the Study:

  • To evaluate the incidence of increased knee instability after partial arthroscopic medial meniscectomy.
  • To assess changes in anterior and medial instability following the procedure.

Main Methods:

  • Study included 200 consecutive patients with medial meniscus lesions.
  • Patients had intact cruciate and collateral ligaments pre-surgery.
  • Follow-up was conducted 53.5 months post-surgery, including KT-1000 measurements.

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Main Results:

  • 6% of patients showed increased anterior instability.
  • 22% of patients demonstrated increased medial instability.
  • Increased anterior tibial translation averaged 4.7 mm (side-to-side difference).

Conclusions:

  • Partial arthroscopic medial meniscectomy may be associated with long-term knee instability.
  • Clinicians should monitor for instability post-meniscectomy.
  • Further research into preventing or managing post-operative instability is warranted.