Tendon Allograft for Repair of the Medial Collateral Ligamen
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The Medial Collateral Ligament of the knee (MCL) is one of its major stabilizers. It has two parts, the superficial and the deep one and offers medial stabilization when valgus forces are applied on the knee. The gravity of the MCL injuries may vary between a simple strain (Grade 1) and a complete rapture (Grade 3). Most isolated injuries of the MCL are treated non operatively. In some cases of complete rupture though, the knee can be followed by injuries of the medial meniscus or/and the anterior cruciate ligament and becomes very unstable. In such cases, surgical repair is indicated and reconstruction may be the only option.

Case Report
A fifty-year old man sustained a rotational injury of his right knee after falling from a small height. On initial examination X-rays revealed no fracture, but clinically the knee was swollen and very tender over its medial side. A Robert-Jones bandage was applied, the leg was elevated and non-weight bearing was advised for two weeks at which time he was reexamined. A Grade III postero-medial knee instability was now clear on examination (wide and almost nonstop opening of the medial compartment on valgus stressing). An MRI scan revealed complete rupture of the medial collateral ligament with detachment of both insertions and also mid-substance damage. It also revealed an incomplete rupture of the ACL. On these findings surgical correction of the medial compartment was decided.

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