title: Outcome and complications after dual mobility total hip replacement: fifty cases with a minimum of six months clinical and radiographic follow-up.
abstract: OBJECTIVE
  To report the clinical and radiographic outcome of a canine total hip prosthesis with a dual mobility acetabular component, with a minimum of six months follow-up.
  
  
  METHODS
  The outcome of dogs that underwent primary cemented unilateral dual mobility hip prosthesis surgery by one of the authors for hip dysplasia or trauma, and which had a minimum of six months clinical and radiologic follow-up, was evaluated.
  
  
  RESULTS
  Fifty dogs were included in the study. Follow-up ranged from six to 38 months (mean 14.4 months). Perioperative complications were acetabular collapse (n = 1) and greater trochanter fracture (n = 1), both of which were successfully managed perioperatively. Postoperative complications were aseptic loosening of the acetabular component (n = 2; both surgically revised), implant sepsis (n = 3; all explanted), acetabular fracture (n = 1; conservatively managed), greater trochanter fracture (n = 1; conservatively managed) and sciatic neurapraxia (n = 1). No cases of postoperative luxation or femoral implant aseptic loosening were encountered. Outcome was poor for three cases (3 implant sepsis), fair for three cases (including 1 acetabular component loosening and 1 acetabular fracture), and good or excellent for 44 cases (88%).
  
  
  CONCLUSIONS
  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.
authors: Clinique Vétérinaire Olliolis, Ollioules, France. guillaumot@olliolis.com
authors: P
authors: P
authors: Guillaumot
authors: A
authors: A
authors: Autefage
authors: T
authors: T
authors: Dembour
authors: J-L
authors: JL
authors: Chancrin
mesh_terms: D000818:Animals; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D004283:Dog Diseases / Q000473:pathology / Q000601:surgery*; D004285:Dogs; D005260:Female; D006622:Hip Prosthesis / Q000662:veterinary*; D007431:Intraoperative Complications / Q000662:veterinary; D008297:Male; D011183:Postoperative Complications / Q000662:veterinary*; D012189:Retrospective Studies; D016896:Treatment Outcome