Experience with the Leeds-Keio artificial ligament for anterior cruciate ligament reconstruction

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Abstract

Artificial anterior ligament reconstruction was very popular between 1975 and 1990. Recently, disappointing results have been published. We reviewed 68 patients who had received an artificial anterior cruciate ligament reconstruction 1 year and 5 years after their operation. The Leeds-Keio device was used as a scaffold. The ligament failed in 32 knees. This was arthroscopically confirmed in 20 cases. The other 12 knees were grossly unstable, with a reappearance of pivot shift, anterior drawer sign and high KT 1000. Generally, we found a marked increase in laxity over the period of investigation. Several biopsies were taken during arthroscopic examination of suspected ruptures. They showed lack of collagenisation and ingrowth.