Download canine hip dysplasia

Canine hip dysplasia
Diploma in Veterinary Clinical Science in Small Animal Surgery and Medicine
1987
Martin Chua Coot Auco
Abstract
Canine hip dysplasia results from abnormal development of the coxofemoral joint and is most
commonly seen in the large/heavy breeds of dog. It occurs equally in both sexes. The age at
which the disease first appears clinically varies from a few months to old age.
In, this thesis the various aetiological agents thought to be involved are discussed. They include
genetic factors, anatomical factors such as acetabular dysplasia; femoral head dysplasia;
inclination and anteversion angles; joint laxity; decreased pelvic muscle mass; hypotrophy of the
pectineus muscle, hormonal factors, and metabolic factors.
The development of the disease is reviewed and the importance of microfractures in relation to
the clinical signs in young dogs is discussed. The pathogenesis of the disease is discussed and
summarized.
Diagnosis is discussed in relation to case history, clinical signs, and radiographic signs. The
following diagnostic procedures are also reviewed: Barden's maneuver, Ortolani's sign,
Norberg's angle, Rhodes and Jenny's acetabular index, and the femoral head and neck angle of
inclination measurements.
The various methods of treatment are considered together with the results of each procedure.
Those surgical treatments included are: pectineus muscle surgery, excision arthroplasty,
intertrochanteric osteotomy, and pelvic osteotomy. Total hip replacement was not included
because it is the subject of a previous thesis produced at Massey University (Waterson, 1985).
Recommendations on how to approach management of the dysplastic dog are presented.