Postoperative magnetic resonance imaging of articular cartilage repair.

The treatment of articular cartilage injuries remains a challenge because cartilage has a limited capacity for spontaneous repair. Over the past decade, a number of surgical interventions have been developed to produce a durable repair. This article reviews the available treatment options, including their indications, technique, and clinical results, and illustrates the MR imaging appearance of normal repair sites and postoperative complications.