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MEDIAL COLLATERAL LIGAMENT RECONSTRUCTION – A NEW METHOD



Abstract

Chronic medial collateral ligament (MCL) instability is an unusual clinical problem. Due to the unsatisfactory results of advancement procedures or reconstruction using autologous techniques we have devised a new technique using a non-irradiated tendo achilles allograft construct.

Three patients are presented who had symptomatic MCL insufficiency. The laxity was demonstrated clinically (all grade 3) and radiologically using valgus stress views.

The tendo achilles was fashioned into a triangular composite graft consisting of a bone plug (30 x 10 mm) and the tendon. The bone plug was attached to the femur at the anatomical insertion of the MCL using an interference screw and the tendon on the tibia using a multiple suture anchor technique.

The rehabilitation programme consisted of immediate mobilisation and the use of a brace for twelve weeks.

At follow-up (average 12 months) all patients were asymptomatic, had a full range of movements, no increased clinical laxity and no increased radiological laxity to a valgus force at 25 degrees of flexion when compared to the other side.

We conclude that this is an effective technique in the treatment of chronic symptomatic MCL laxity.

The abstracts were prepared by Mr Roger Smith. Correspondence should be addressed to him care of the British Orthopaedic Association, Royal College of Surgeons, 35-43 Lincoln’s Inn Fields, London WC2A 3PN.