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From
Sportorthopädie Bern, Bern, Switzerland, and the
Department of Orthopedic Surgery, University of Magdeburg, Magdeburg, Germany
* Address correspondence to Ottmar Gorschewsky, MD, Sportorthopädie Bern, Klinik Sonnenhof, Buchserstrasse 30, CH-3006, Bern, Switzerland (e-mail: ottmargorschewsky{at}sonnenhof.ch).
Background: The use of an allograft as a suitable transplant is still open to debate, in terms of donor morbidity, implantation reaction, and long-term results, as well as the risk of disease transmission.
Hypothesis: The clinical results 2 and 6 years after implantation of a bonepatellar tendonbone allograft (Tutoplast) and bonepatellar tendonbone autograft show no significant difference in relation to stability, function, and rate of rupture.
Study Design: Cohort study; Level of evidence, 2.
Method: Between 1995 and 1998, 268 patients with anterior cruciate ligament ruptures were surgically treated: 132 patients received a bonepatellar tendonbone allograft implantation and 136 patients a bonepatellar tendonbone autograft. The results were evaluated using the International Knee Documentation Committee, Noyes, and Lysholm scores.
Results: There were 201 patients assessable after 2 years and 186 patients after 6 years. Ruptures of the implants in the allograft group occurred in 20 patients (20.6%) within 2 years and in 38 patients (44.7%) after 6 years. In the autograft group, transplants ruptured in 5 patients (4.8%) after 2 years and in 6 patients (5.9%) after 6 years.
Conclusion: Based on the data, it would appear that the regular use of bonepatellar tendonbone allografts, particularly for physically active patients, is unsuitable.
Key Words: anterior cruciate ligament (ACL) rupture surgical maintenance bonepatellar tendonbone (BPTB) allograft bonepatellar tendonbone (BPTB) autograft
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