Health A-Z

Medical Content Created by the Faculty of the Harvard Medical School



About 90% of patients with ACL injuries fully recover, as long as they faithfully follow a good rehabilitation program. As a long-term complication, some patients with Grade III ACL injuries may eventually develop symptoms of osteoarthritis in the injured knee joint. According to one study, 50% to 60% of patients who suffered a severe ACL sprain showed X-ray evidence of knee osteoarthritis within 5 years after their ACL injury.

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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