Predisposition of Dog Breeds to Rupture of the Cranial Cruciate Ligament

A Nečas,H Kecová,J Zatloukal,M Dvořák

doi:10.2754/avb200069040305

Abstract

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Highlights

Obtaining more data on breed predisposition of dogs to the cranial cruciate ligament (CCL) rupture and data on accompanying abnormalities of joints of pelvic limbs affected by the CCL rupture may help in answering some questions concerning the etiology and pathogenesis of the disorder
We found increased breed predisposition (χ2-test; p < 0.01) in the following breeds represented by at least two cases of CCL rupture: American Staffordshire Terrier, Rottweiler, Brazilian Fila, Labrador Retriever, American Cocker Spaniel, Chow Chow, German Shorthaired Pointer, Saint Bernard and Bullmastiff
In 9 cases we found medial patellar luxation in the joint affected by the CCL rupture, and in 5 cases osteochondrosis was diagnosed in the affected stifle

Summary

Introduction

Obtaining more data on breed predisposition of dogs to the cranial cruciate ligament (CCL) rupture and data on accompanying abnormalities of joints of pelvic limbs affected by the CCL rupture may help in answering some questions concerning the etiology and pathogenesis of the disorder. In 183 patients affected by the CCL rupture out of the total of 11579 dogs, evaluated and/or treated in the Clinic of Surgery and Orthopedics at the Veterinary and Pharmaceutical University Brno from January 1997 till April 2000, the breed, weight, sex and concurrent joint abnormalities of pelvic limbs (hip dysplasia, patellar luxation and osteochondrosis of the stifle joint) were recorded. At the same time in 27 patients with the CCL rupture we diagnosed canine hip dysplasia, in 9 dogs medial patellar luxation and in 5 cases osteochondrosis of the stifle joint. With regard to the absence of direct trauma of the stifle joint in most cases of CCL rupture, various predisposing factors taking part in decreasing the firmness of the ligament, resulting in its inability to stand up to normal loading and subsequent rupture have been considered.

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