Risk of Tearing the Intact Anterior Cruciate Ligament in the Contralateral Knee and Rupturing the Anterior Cruciate Ligament Graft during the First 2 Years after Anterior Cruciate Ligament Reconstruction

Author:

Wright Rick W.1,Dunn Warren R.2,Amendola Annunziato3,Andrish Jack T.4,Bergfeld John4,Kaeding Christopher C.5,Marx Robert G.6,McCarty Eric C.7,Parker Richard D.4,Wolcott Michelle7,Wolf Brian R.3,Spindler Kurt P.2

Affiliation:

1. Department of Orthopaedic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St. Louis, Missouri

2. Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University School of Medicine, Nashville, Tennessee

3. Department of Orthopaedic Surgery, University of Iowa School of Medicine, Iowa City, Iowa

4. Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio

5. Department of Orthopaedic Surgery, The Ohio State University School of Medicine, Columbus, Ohio

6. Sports Medicine Division, Hospital for Special Surgery, New York, New York

7. Department of Orthopaedic Surgery, University of Colorado School of Medicine, Denver, Colorado

Abstract

Background The risk of tear of the intact anterior cruciate ligament in the contralateral knee after anterior cruciate ligament reconstruction of the opposite knee and the incidence of rupturing the anterior cruciate ligament graft during the first 2 years after surgery have not been extensively studied in a prospective manner. Clinicians have hypothesized that the opposite normal knee is at equal or increased risk compared with the risk of anterior cruciate ligament graft rupture in the operated knee. Hypothesis The risk of anterior cruciate ligament graft rupture and contralateral normal knee anterior cruciate ligament rupture at 2-year follow-up is equal. Study Design Cohort study; Level of evidence, 2. Methods The Multicenter Orthopaedic Outcome Network (MOON) database of a prospective longitudinal cohort of anterior cruciate ligament reconstructions was used to determine the number of anterior cruciate ligament graft ruptures and tears of the intact anterior cruciate ligament in the contralateral knee at 2-year follow-up. Two-year follow-up consisted of a phone interview and review of operative reports. Results Two-year data were obtained for 235 of 273 patients (86%). There were 14 ligament disruptions. Of these, 7 were tears of the intact anterior cruciate ligament in the contralateral knee (3.0%) and 7 were anterior cruciate ligament graft failures (3.0%). Conclusion The contralateral normal knee anterior cruciate ligament is at a similar risk of anterior cruciate ligament tear (3.0%) as the anterior cruciate ligament graft after primary anterior cruciate ligament reconstruction (3.0%).

Publisher

SAGE Publications

Subject

Physical Therapy, Sports Therapy and Rehabilitation,Orthopedics and Sports Medicine

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