The objective of this study was to report surgical stabilisation of caudoventral coxofemoral luxation by an extra‐articular technique in dogs. Medical records from caudoventral coxofemoral luxations in dogs and cats presented at our institution between January 2012 and December 2020 were reviewed. Caudoventral luxations were relatively rare and were found in one cat and in 13 dogs. Three cases of surgical stabilisation using a ventral coxofemoral approach were reviewed, replacing function of the transverse acetabular ligament using a figure of eight braided suture passed around two pelvic screws and one femoral screw. Functional recovery was obtained in all three cases, without complication or re‐luxation. Extra‐articular stabilisation using a sling implant is a simple, effective method for treatment of caudoventral coxofemoral luxation in dogs.
Prosthetic dislocation is one of the most common complications after canine hip replacement. The use of dual mobility acetabular components has been shown to reduce the rate of dislocation in first intent hip replacement in human patients who are at high risk for dislocation. In such implants, a mobile polyethylene liner articulates on one side with a metallic acetabular component and on the other side with a metallic prosthetic head. A dual mobility cemented acetabular component has been designed for use in dogs, and is available for use in association with a previously designed modular femoral component. This report describes the characteristics and the procedure for implantation of this implant combination.
SummaryA five-month-old, male, 16 kg, mixed breed dog was presented for an acute non-weight bearing lameness of the right hind limb. A subtotal avulsion of the quadriceps tendon at its patellar insertion was diagnosed through radiography and ultrasonography. Two nylon sutures secured with a stainless steel crimp were placed in a locking loop pattern in the quadriceps tendon and through a transverse 2.7 mm drill-hole in the patella. No external coaptation was used postoperatively. A full functional recovery was observed, and was followed for one year postoperatively. Quadriceps tendon rupture has not been described in the veterinary literature to our knowledge; in humans, quadriceps tendon rupture is a well known entity, often due to systemic disease resulting in weakening of the tendinous structures. In the case presented herein, the dog’s history, young age and location, without underlying biochemical abnormalities, led us to believe that the observed lesion was of traumatic origin. The surgical treatment performed was based on that performed in humans and also that which has been investigated experimentally in the dog.
There were not any cases of postoperative coxofemoral luxation observed in this series of 50 dogs with dual mobility hip prosthesis. Studies with more patients and longer follow-up are needed to confirm the satisfactory results observed to date with this implant.
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