Cadaveric sequential-cutting study using computer-navigated mechanized pivot shift and Lachman testing to determine whether the medial or lateral meniscus provides greater secondary stabilization in the ACL-deficient knee — and whether the answer depends on which test is used.
When you encounter a combined ACL + lateral meniscus injury, recognize that the lateral meniscus — not the medial.
Is the critical secondary stabilizer under the rotatory loads of sport: leaving an irreparable lateral meniscus unaddressed at ACL reconstruction risks residual pivot shift instability and accelerated lateral compartment deterioration.
Conversely, an isolated medial meniscal tear in an ACL-deficient knee primarily compounds uniplanar laxity (Lachman), so prioritize lateral meniscal preservation in the OR even when medial pathology is present.
Cadaveric sequential-cutting study using computer-navigated mechanized pivot shift and Lachman testing to determine whether the medial or lateral meniscus provides greater secondary stabilization in the ACL-deficient knee — and whether the answer depends on which test is used.
When you encounter a combined ACL + lateral meniscus injury, recognize that the lateral meniscus — not the medial.
Is the critical secondary stabilizer under the rotatory loads of sport: leaving an irreparable lateral meniscus unaddressed at ACL reconstruction risks residual pivot shift instability and accelerated lateral compartment deterioration.
Conversely, an isolated medial meniscal tear in an ACL-deficient knee primarily compounds uniplanar laxity (Lachman), so prioritize lateral meniscal preservation in the OR even when medial pathology is present.