Early point of significantly higher lesions in insufficient anterior cruciate ligament knees

ABSTRACT

An experimental study was designed to determine the impact of the instability in the rabbit knee.Ten mature white New Zealand male rabbits were studied. Anterior cruciate ligament-transection of the right knee joint was performed. Animals were sacrificed at 4 weeks (group 1 five animals) and 12 weeks (group 2 five animals) after the surgery. Left knee joints were used as controls. Gross injuries in articular cartilage and in menisci were scored. Forty percent of the knees from the group 1 showed fibrillation. In the group 2, all the knees were damaged and 2/5 showed full-thickness erosion. Tears were observed in 2 internal menisci from the group 1 and in 2 external menisci and 5/5 internal menisci from the group 2. The earliest point of significantly higher incidence of knee damage was 3 months post injury. Therefore, when an anterior cruciate ligament reconstruction is indicated it should carry out as soon as possible (AU)

RESUMEN

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