title: Comparison of surgical treatment options for cranial cruciate ligament disease in large-breed dogs with excessive tibial plateau angle.
abstract: OBJECTIVE
  To identify surgical techniques performed by veterinary surgeons for the treatment of cranial cruciate ligament disease in large-breed dogs with excessive tibial plateau angle (eTPA), compare their outcomes, identify risk factors for postoperative complications, and compare outcome and complication rate with tibial plateau leveling osteotomy (TPLO) in dogs without eTPA.
  
  
  METHODS
  Multicenter, case-control study.
  
  
  METHODS
  eTPA group (TPA>or=35 degrees)=58 dogs (78 stifles); control group (TPA<or=30 degrees)=58 dogs (72 stifles).
  
  
  METHODS
  Control and eTPA group dogs were identified. Medical records, radiographic reviews, and pet-owner interviews were used to identify surgical treatments performed, their complications, and outcome. Odds ratios with 95% confidence intervals, chi(2) tests, and t-tests were calculated to discern differences between eTPA and control-group dogs.
  
  
  RESULTS
  TPLO was the most common treatment for eTPA. Owner-perceived outcome was superior for eTPA group dogs when TPLO resulted in TPA<or=14 degrees compared with those with postoperative TPA>14 degrees. Loss of tibial plateau leveling during convalescence was the most commonly observed major complication; addition of ancillary implants to TPLO significantly reduced its incidence. Postoperative complications were more common in dogs with eTPA than in dogs without eTPA; however, no difference in owner-perceived outcome was identified.
  
  
  CONCLUSIONS
  Surgical treatment of dogs with eTPA has a higher complication rate, but comparable outcome to that of dogs without eTPA.
  
  
  CONCLUSIONS
  Postoperative TPA<or=14 degrees and addition of ancillary implants are recommended when using TPLO to treat dogs with eTPA.
authors.affiliation: Department of Clinical Sciences, Veterinary Medical Center, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA.
authors.forename: Felix M
authors.initials: FM
authors.lastname: Duerr
authors.forename: Colleen G
authors.initials: CG
authors.lastname: Duncan
authors.forename: Roman S
authors.initials: RS
authors.lastname: Savicky
authors.forename: Richard D
authors.initials: RD
authors.lastname: Park
authors.forename: Erick L
authors.initials: EL
authors.lastname: Egger
authors.forename: Ross H
authors.initials: RH
authors.lastname: Palmer
mesh_terms: D000818:Animals; D016118:Anterior Cruciate Ligament / Q000473:pathology / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D016022:Case-Control Studies; D004283:Dog Diseases / Q000473:pathology / Q000601:surgery; D004285:Dogs / Q000293:injuries / Q000601:surgery; D005260:Female; D008297:Male; D010027:Osteotomy / Q000379:methods / Q000662:veterinary*; D011183:Postoperative Complications / Q000453:epidemiology / Q000662:veterinary; D013264:Stifle / Q000293:injuries / Q000601:surgery*; D013977:Tibia / Q000293:injuries / Q000601:surgery*; D016896:Treatment Outcome