Poor outcomes probable with ACL revisions

Primary reconstruction of the anterior cruciate ligament (ACL) generally results in high levels of patient satisfaction. But as the number of primary ACL reconstructions increase, the potential for revision surgery also rises. Patients who have had good results after a primary ACL reconstruction may expect similar results after revision surgery.

But according to Rick W. Wright, MD, such expectations may be misplaced. In reporting on “Patient-Based Outcomes of Revision ACL Reconstruction: 2 Year Results from the MOON (Multicenter Orthopaedic Outcomes Network) Cohort,” Dr. Wright said that “revision ACL reconstruction resulted in a significantly worse outcome.”

The MOON consortium is a National Institutes of Health-funded, hypothesis-driven, multicenter, prospective cohort study of patients undergoing ACL reconstruction. Six sites and eight surgeons were involved, and a variety of grafts were used. Patient-based outcomes were measured by the Knee Injury and Osteoarthritis Outcome Score (KOOS), the International Knee Documentation Committee Subject Form (IKDC), and the MARX activity level score. In all of these scoring systems, higher numbers reflect better outcomes.

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