title: Total hip replacement after failed femoral head and neck excision in two dogs and two cats.
abstract: OBJECTIVE
  To document outcome in 2 dogs and 2 cats after conversion of femoral head and neck excision (FHNE) to total hip replacement (THR).
  
  
  METHODS
  Case series.
  
  
  METHODS
  Dogs (n = 2) and 2 cats.
  
  
  METHODS
  For 1 dog and 2 cats, THR was performed using cemented acetabular and femoral components. Noncemented acetabular and cemented femoral components were used in 1 dog.
  
  
  RESULTS
  All animals presented with severe hip pain and chronic lameness after unsuccessful FHNE. Potential causes of suboptimal outcome after FHNE were incomplete resection of the femoral neck (n = 3) and fibrous adhesions involving the sciatic nerve (n = 2). Post-FHNE remodeling of the proximal femur and acetabulum necessitated unconventional modifications of surgical technique. In all 4 cases, final clinical outcome and radiographic reassessment were satisfactory. Aseptic loosening of the acetabular bone-cement interface necessitating surgical revision was the only complication noted in 1 cat.
  
  
  CONCLUSIONS
  Despite severe preoperative pain and chronic functional impairment in all cases, conversion of FHNE to THR produced marked clinical improvement including return to unrestricted exercise within 12 weeks of surgery.
authors.affiliation: Fitzpatrick Referrals, Eashing, Surrey, UK. noel@fitzpatrickreferrals.co.uk
authors.forename: Noel
authors.initials: N
authors.lastname: Fitzpatrick
authors.forename: Laura
authors.initials: L
authors.lastname: Pratola
authors.forename: Russell
authors.initials: R
authors.lastname: Yeadon
authors.forename: Christos
authors.initials: C
authors.lastname: Nikolaou
authors.forename: Michael
authors.initials: M
authors.lastname: Hamilton
authors.forename: Michael
authors.initials: M
authors.lastname: Farrell
mesh_terms: D000818:Animals; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000379:methods / Q000662:veterinary*; D002371:Cat Diseases / Q000209:etiology / Q000601:surgery*; D002415:Cats; D004283:Dog Diseases / Q000209:etiology / Q000601:surgery*; D004285:Dogs; D005269:Femur / Q000473:pathology; D006622:Hip Prosthesis / Q000662:veterinary; D011183:Postoperative Complications / Q000662:veterinary*; D011475:Prosthesis Failure; D012086:Reoperation