title: Retrospective risk factor assessment for complication following tibial tuberosity transposition in 137 canine stifles with medial patellar luxation.
abstract: This study identified risk factors for complication following tibial tuberosity transposition by retrospective examination of cases that used various surgical techniques. Records and radiographs of 113 dogs with 137 stifles undergoing tibial tuberosity transposition for medial patellar luxation were reviewed. Patient-specific factors, surgical factors, and complication information were recorded. Owners were contacted as necessary to attain a minimum of 30 days follow-up. Of 137 stifles, 59 (43%) had complications, with 24 (18%) identified as major complications. Factors significantly associated with reduced risk of complication included increased age [odds ratio (OR) 0.8] and concurrent cranial cruciate ligament rupture (OR 0.3). Factors significantly associated with increased risk of complication included large breed compared to toy breed (OR 5.5), increased weight (OR 1.3), and use of a screw for tibial tuberosity fixation (OR infinity). While significant, these associations do not imply causality and prospective study is necessary to determine the ideal fixation method for individual patients.
authors.affiliation: BluePearl Veterinary Partners, 3000 Busch Lake Blvd., Tampa, Florida 33614, USA (Stanke); Department of Medicine and Epidemiology (Stephenson) and Department of Surgical and Radiological Sciences (Hayashi), UC Davis School of Veterinary Medicine, One Shields Avenue, Davis, California 95616, USA.
authors.forename: Natasha J
authors.initials: NJ
authors.lastname: Stanke
authors.affiliation: BluePearl Veterinary Partners, 3000 Busch Lake Blvd., Tampa, Florida 33614, USA (Stanke); Department of Medicine and Epidemiology (Stephenson) and Department of Surgical and Radiological Sciences (Hayashi), UC Davis School of Veterinary Medicine, One Shields Avenue, Davis, California 95616, USA.
authors.forename: Nicole
authors.initials: N
authors.lastname: Stephenson
authors.affiliation: BluePearl Veterinary Partners, 3000 Busch Lake Blvd., Tampa, Florida 33614, USA (Stanke); Department of Medicine and Epidemiology (Stephenson) and Department of Surgical and Radiological Sciences (Hayashi), UC Davis School of Veterinary Medicine, One Shields Avenue, Davis, California 95616, USA.
authors.forename: Kei
authors.initials: K
authors.lastname: Hayashi
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000601:surgery*; D004285:Dogs; D005260:Female; D006614:Hindlimb / Q000601:surgery; D007592:Joint Diseases / Q000601:surgery / Q000662:veterinary*; D008297:Male; D016017:Odds Ratio; D031222:Patellar Dislocation / Q000601:surgery / Q000662:veterinary*; D011183:Postoperative Complications / Q000662:veterinary*; D012189:Retrospective Studies; D012307:Risk Factors; D013264:Stifle / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome