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Scientific Articles   |    
Allograft Compared with Autograft Infection Rates in Primary Anterior Cruciate Ligament Reconstruction
David D. Greenberg, MD1; Michael Robertson, MD2; Santaram Vallurupalli, MD2; Richard A. White, MD2; William C. Allen, MD2
1 Department of Orthopaedic Surgery, Saint Louis University, 3635 Vista Avenue, 7th Floor Desloge Towers, St. Louis, MO 63110
2 Department of Orthopaedic Surgery, University of Missouri-Columbia, 213 McHaney Hall, DC053.00, One Hospital Drive, Columbia, MO 65212. E-mail address for W.C. Allen: allenw@health.missouri.edu
View Disclosures and Other Information
Disclosure: In support of their research for or preparation of this work, one or more of the authors received, in any one year, outside funding or grants in excess of $10,000 from the Musculoskeletal Transplant Foundation. Neither they nor a member of their immediate families received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity.

A commentary by Martin Boublik, MD, is available at www.jbjs.org/commentary and as supplemental material to the online version of this article.
Investigation performed at the Department of Orthopaedic Surgery, University of Missouri-Columbia, Columbia, Missouri

Copyright © 2010 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2010 Oct 20;92(14):2402-2408. doi: 10.2106/JBJS.I.00456
A commentary by Martin Boublik, MD, is available here
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Abstract

Background: 

Injuries to the anterior cruciate ligament are the most common surgically treated knee ligament injury. There is no consensus regarding the optimal graft choice between allograft and autograft tissue. Postoperative septic arthritis is an uncommon complication after anterior cruciate ligament reconstruction. The purpose of this study was to compare infection rates between procedures with use of allograft and autograft tissue in primary anterior cruciate ligament reconstruction.

Methods: 

A combined prospective and retrospective multicenter cohort study was performed over a three-year period. Graft selection was determined by the individual surgeon. Inclusion and exclusion criteria were equivalent for the two groups (allograft and autograft tissue). Data collected included demographic characteristics, clinical information, and graft details. Patients were followed for a minimum of 5.5 months postoperatively. Our primary outcome was intra-articular infection following anterior cruciate ligament reconstruction.

Results: 

Of the 1298 patients who had anterior cruciate ligament reconstruction during the study period, 861 met the criteria for inclusion and formed the final study group. Two hundred and twenty-one patients (25.6%) received an autograft, and 640 (74.3%) received an allograft. There were no cases of septic arthritis in either group. The 95% confidence interval was 0% to 0.57% for the allograft group and 0% to 1.66% for the autograft group. The rate of superficial infections in the entire study group was 2.32%. We did not identify a significant difference in the rate of superficial infections between autograft and allograft reconstruction in our study group.

Conclusions: 

While the theoretical risk of disease transmission inherent with allograft tissue cannot be eliminated, we found no increased clinical risk of infection with the use of allograft tissue compared with autologous tissue for primary anterior cruciate ligament reconstruction.

Level of Evidence: 

Therapeutic Level II. See Instructions to Authors for a complete description of levels of evidence.

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    Accreditation Statement
    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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