Revision anterior cruciate ligament reconstruction using the regenerated semitendinosus tendon: Analysis of ultrastructure of the regenerated tendon |
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| Institution: | 1. Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan;1. Department of Orthopedics, Kaiser Permanente Los Angeles Medical Center, Los Angeles, California, U.S.A.;2. Orthopedic Associates of Hartford, Hartford, Connecticut, U.S.A.;3. Department of Orthopedics, University of Connecticut Health Center, Farmington, Connecticut, U.S.A.;4. Department of Orthopedic Sports Medicine, Technical University of Munich, Munich, Germany;1. Department of Orthopedic Surgery, Juntendo University Urayasu Hospital, Chiba, Japan;2. Department of Orthopedic Surgery, Juntendo University, Tokyo, Japan;3. Department of Anatomy and Life Structure, Juntendo University, Tokyo, Japan |
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| Abstract: | In this report, we present a case of a college skier who sustained a rerupture of the reconstructed anterior cruciate ligament (ACL) 8 months after surgery in which an autogenous semitendinosus tendon graft was used. At the revision surgery, the harvested semitendinosus tendon appeared to be regrown. Thus the regenerated tendon was reharvested, and in combination with the gracilis tendon, was used as a graft. The electron microscopic examination revealed a difference in fibril diameter between the regenerated tissue and the normal tendon. Although the regenerated semitendinosus tendon could be reharvested, the feasibility of its use for revision surgery is still to be determined. |
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