[Internal meniscus resections do not affect anterior knee joint stability].

Area of Science:

• Orthopedic surgery
• Biomechanics
• Sports medicine

Background:

• Meniscus injuries can cause knee joint instability.
• The effect of medial meniscus resection on anterior tibial translation with an intact ACL is not well understood.

Purpose of the Study:

• To clinically assess the stabilizing role of resecting at least 30% of the medial meniscus on anterior tibial translation.

Main Methods:

• Prospective study of 18 patients with unilateral medial meniscus lesions.
• Measurements included dynamic translation using specific apparatus and functional tests like CDP and hop tests.
• Statistical analysis used the non-parametric Wilcoxon test.

Main Results:

• No significant differences in ventral instability were detected after arthroscopic medial meniscus resection.
• The study did not find evidence of increased anterior knee joint instability.

Conclusions:

• Partial resection of the medial meniscus does not appear to cause increased ventral knee instability in knees with an intact ACL.
• Further studies are required to investigate rotational instability or other injuries as causes of perceived instability post-meniscectomy.