Stabilization of coxo-femoral luxation using tenodesis of the deep gluteal muscle

Summary

This retrospective study documents deep gluteal tenodesis (DGT) used to stabilize coxofemoral luxation (CFL) in dogs and cats, and to report reluxation rate and clinical outcome after DGT.

Medical records (1995–2008) of 65 dogs and cats with traumatic CFL treated by capsulorrhaphy and DGT were reviewed. Animals with radiographic evidence of pre-existing hip dysplasia or articular fractures had been excluded. Reluxation rate and outcome were assessed by clinical examination, performed two and ten weeks postoperatively.

Surgical treatment was performed between one and 20 days after the initiating event. No perioperative complications occurred. All hip joints were correctly reduced and stabilized immediately after DGT completion. Except for five patients, placement of the screw was considered correct. In two of these patients, the screws were too long and were protruding into the pelvic canal. In two dogs, the screws were not tightened adequately, and in one dog the screw was too short. Twenty-six dogs and eight cats were re-examined between eight and 13 weeks postoperatively. Reluxation did not occur in any of them. Outcomes were good in two cases and excellent in 32 cases; all but two had a normal range-of-motion of the reconstructed hip, and were free of lameness and did not show any signs of pain.

Traumatic CFL can be stabilized safely and effectively by DGT in dogs and cats. This technique should be considered among other capsular reinforcement techniques in the presence of an intact deep gluteal muscle.

Presented in part at the 19th Annual Scientific Meeting ECVS, Helsinki, Finland, July 1–3, 2010

Keywords

Coxo-femoral luxation - deep gluteal muscle - tenodesis - dogs - cats

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