Biomedical subjects
Publications and source records attributed to W D Prieur.
Indications, preoperative planning, and surgical procedure for the three-plane intertrochanteric osteotomy are described. The goal of this procedure is to decrease the biomechanical stress in the coxofemoral joint, thereby relieving pain associated with early stage canine hip dysplasia. Clinical signs of pain are alleviated for many years.
Modern osteosynthesis has remarkably changed the fracture treatment in small animals with its aim to re-establish full limb function. The scientific basis is elaborated and the different surgical methods are clinically proved. Veterinarians who want to perform operative fracture treatment must have sufficient training in the different techniques, the possibility to perform aseptic surgery and suitable instruments and implants. As this type of surgery means severe stress to the trauma patient, surgery cannot be done before his condition is stabilized.
Between May 1980 and May 1987, intertrochanteric osteotomy was performed on 43 hips of 37 dogs (6 bilateral procedures) with early-stage hip dysplasia, with the objectives of improving hip biomechanics and reducing discomfort. Clinical evaluation consisted of: questionnaire, and/or orthopedic examination, and/or report from owner(s) via telephone. At least 1 form of evaluation was conducted for 42 of 43 hips (98%). On the basis of orthopedic examination findings, 27 of 33 hips (84%) were functionally good or normal at postoperative month 15 (on average). On the basis of owner report, 19 of 28 hips (68%) were functionally good or normal at postoperative month 11 (on average). On the basis of questionnaire data, 17 of 24 hips (70%) were functionally good or normal at postoperative year 1. Before surgery, only 11 of 37 hips (30%) had been evaluated as functionally good or normal. Of 36 owners, 33 (91.6%) reported that they would have the procedure performed again if the circumstances were the same. From the good to excellent clinical results, we concluded that intertrochanteric osteotomy is a beneficial treatment for dogs with early-stage hip dysplasia.
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A stainless steel plate was designed for use on the dorsal rim of the acetabulum of the dog. The surgical procedure, using this plate, is easier and less time consuming than previous techniques, because the plate is easier to contour to the dorsal rim of the acetabulum. The use of this plate, compared with other types of plates, has resulted in more accurate anatomic reduction after fixation. No long-term complications caused by the plate or screws have been identified. Follow-up examinations have revealed that the functional use of the limb is as good as with other types of plates.
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