Abstract
In five adult rabbits the medial collateral ligament of one knee joint was replaced by a free perichondrial graft from a rib. When tested after 2 to 5 months the joints were stable in all cases. Histological sections showed a picture of mixed cartilaginous and ligamentous tissue in all specimens. These promising results may open new fields for the use of perichondrium as a ligament substitute for ligament—for example, in the wrist.