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Clinical Experience with the Leeds-Keio Artificial Ligament in Anterior Cruciate Ligament Reconstruction

A Prospective Two-Year Follow-up Study

Department of Orthopedic Surgery, Hässleholm Hospital, Hässleholm

Lars Peterson, MD, PhD

Gothenburg Medical Center, Gothenburg, Sweden

In this study, 24 consecutive patients with symptomatic chronic anterior cruciate ligament ruptures who had ligament reconstructions with the Leeds-Keio artificial ligament were observed for a minimum of 2 years or until ligament failure, whichever came first. The evalu ation included a clinical examination, Lysholm knee score, and testing with a KT-1000 arthrometer. Within 2 years after surgery three patients underwent reop eration because of a rupture of the artificial ligament leading to instability. Another six patients developed significant subjective instability, even during ordinary activity. Only eight patients had a subjectively stable knee. Eleven patients scored 84 points or less on the Lysholm knee score, and 13 patients scored 85 points or more. The mean difference in anterior translation be tween the reconstructed knee and the opposite knee tested with the KT-1000 arthrometer was 3.7 mm. The high incidence of unstable knees, 9 of 24, due to in sufficiency of the artificial ligament in this 2-year follow-up study strongly suggests that the Leeds-Keio artificial ligament is not an effective device for the reconstruction of the anterior cruciate ligament.