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Scientific Articles   |    
Bone Tunnel Widening with Autogenous Bone Plugs Versus Bioabsorbable Interference Screws for Secondary Fixation in ACL Reconstruction
Seung-Ju Kim, MD1; Ji-Hoon Bae, MD2; Sang-Heon Song, MD1; Hong-Chul Lim, MD, PhD1
1 Korea University Medical Center, Guro Hospital, 80 Guro-dong, Guro-gu, Seoul 152-703, South Korea. E-mail address for S.-J. Kim: sju627@hotmail.com. E-mail address for S.-H. Song: ssclick@paran.com. E-mail address for H.-C. Lim: lhc2455@paran.com
2 Korea University Medical Center, Ansan Hospital, 516, Gojan-dong, Gyunggi-do 425-707, Seoul, South Korea. E-mail address: osman@korea.ac.kr
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  • Disclosure statement for author(s): PDF

Investigation performed at Korea University Medical Center, Guro Hospital, Seoul, South Korea



Disclosure: None of the authors received payments or services, either directly or indirectly (i.e., via his or her institution), from a third party in support of any aspect of this work. None of the authors, or their institution(s), have had any financial relationship, in the thirty-six months prior to submission of this work, with any entity in the biomedical arena that could be perceived to influence or have the potential to influence what is written in this work. Also, no author has had any other relationships, or has engaged in any other activities, that could be perceived to influence or have the potential to influence what is written in this work. The complete Disclosures of Potential Conflicts of Interest submitted by authors are always provided with the online version of the article.

Copyright © 2013 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2013 Jan 16;95(2):103-108. doi: 10.2106/JBJS.L.00356
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Abstract

Background: 

Use of an autogenous bone plug for the tibial tunnel in anterior cruciate ligament (ACL) reconstruction has been advocated to achieve tendon-to-bone healing. Our hypothesis was that use of an autogenous bone plug, instead of a bioabsorbable interference screw, for secondary fixation of tendon allograft to the proximal part of the tibia would reduce the complication rate and tibial tunnel widening.

Methods: 

We prospectively reviewed the cases of eighty-one patients (average age, 32.0 years) who had undergone ACL reconstruction with Achilles tendon allograft between 2000 and 2006. A bioabsorbable interference screw was used for the tibial tunnel in forty-one patients (group I). These patients were compared with forty patients in whom autogenous bone from the tibia had been used (group II). The two groups were assessed with use of the International Knee Documentation Committee (IKDC), Lysholm, and Tegner activity scores and with KT2000 arthrometer testing. The cross-sectional area perpendicular to the long axis of the tibial tunnel was calculated digitally with use of magnetic resonance imaging (MRI).

Results: 

No significant differences were seen between the two groups with respect to IKDC, Lysholm, or Tegner activity scores or the results of laxity testing with arthrometry. A total of fourteen complications (34%) occurred in group I. In contrast, six complications (15%) were seen in group II (p = 0.046). The mean cross-sectional area enlargement was 38% in group I and 15% in group II (p = 0.017).

Conclusions: 

The clinical results associated with bioabsorbable screws and bone plugs were not significantly different. Laxity evaluation demonstrated no significant differences between bioabsorbable screws and bone plugs. Compared with bioabsorbable interference screws, autogenous bone plugs reduced the complication rate and tibial tunnel widening without inducing instability. We believe that an autogenous bone plug for the tibial tunnel is a reasonable option in selected patients.

Level of Evidence: 

Therapeutic Level II. See Instructions for 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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