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A Journal on Orthopedics and Traumatology

Official Journal of the Piedmontese-Ligurian-Lombard Society of Orthopedics and Traumatology
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Minerva Ortopedica e Traumatologica 1999 April;50(2):47-52

language: English

Anterior cruciate ligament reconstruction by autograft or carbon fibers. An experimental study

Lesic A., Bumbasirevic M., Filipovic B.


Background. The biologic response and strength of anterior cruciate ligament (ACL) reconstruction by carbon fibers or fascia lata autograft was investigated in dog's knee.
Methods. The allografts and autografts were inserted to replace ACL according to the modified Jones technique or intraarticular technique recommended by the manufacturer of the carbon fiber prosthesis. Clinical and histology picture, as well as tensile strength of the bone-neoligament-bone connections were evaluated in one, two, and six month periods.
Results. The tensile strength of the neoligament never reached or exceeded the strength of the normal ACL ligament, in both groups. Histologically there was marked fibrous tissue in growth between the carbon fibers, but no bone replacement of fibrous tissue of allografts or autografts in bone tunnels (femoral and tibial) was obtained. The autografts were replaced predominantly by elastic connective tissue, and its intraarticular part was covered by synovial-like epithelium. In the experiment there was no superiority of the carbon fibers over fascia lata as a substitute for the anterior cruciate ligament in a dog's knee as a model.
Conclusions. The canine knee is a suitable model for experimental knee surgery. The characteristics of the carbon ACL prosthesis must be improved for successful clinical use.

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