Surgical Reconstruction of Severe Chronic Posterolateral Complex Injuries of the Knee Using Allograft Tissues

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Abstract
We report for the first time a reconstructive procedure of the posterolateral complex using allograft tissue to restore fibular collateral ligament function. The proce dure is designed for knees where insufficient soft tis sues are present and suitable autogenous graft tissues are not available. Twenty consecutive patients were studied; all returned for follow-up evaluation a mean of 42 months (range, 24 to 73) after surgery. The results were evaluated with the use of a comprehensive sub jective and objective system that rated 20 factors. The success rate for the operative procedure was 76% (16 of 21 operations) as judged by knee stability examina tion and stress radiographs. Three of the reconstruc tions showed partial stretching and two failed. There was significant improvement from preoperative to follow-up scores of functional limitations in sports ac tivities (P < 0.05), symptoms (P < 0.01), and overall scores (P < 0.0001). The immediate knee motion and rehabilitation program restored 0° to 135° of motion in all knees and was not deleterious to the reconstructions.

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