title: Medial ridge elevation wedge trochleoplasty for medial patellar luxation: a clinical study in 5 dogs.
abstract: OBJECTIVE
  To develop a surgical technique to elevate the medial trochlear ridge for surgical correction of medial patellar luxation, and to evaluate clinical outcome.
  
  
  METHODS
  Case series.
  
  
  METHODS
  Dogs (n = 5) with Grade 3 medial patellar luxation.
  
  
  METHODS
  An asymmetrical wedge was removed from the trochlear groove, rotated 180°, and placed in the recess to create an elevated medial trochlear ridge. Postoperative radiography, CT scan, and subjective evaluation of clinical outcomes were performed.
  
  
  RESULTS
  Surgical procedure and postoperative recovery were uncomplicated. There was no recurrence of spontaneous luxation and subjectively, gait improved in all dogs. Postoperative radiographs and CT images confirmed the elevated medial trochlear ridge, a significantly increased groove depth/patellar thickness ratio (P < .01), and seating of the patella in the trochlear groove.
  
  
  CONCLUSIONS
  Elevating the medial trochlear ridge, instead of deepening the groove, can be considered a viable surgical technique to stabilize luxating patellae.
authors.affiliation: Fujii Animal Care Center, Yokohama, Japan.
authors.forename: Koichi
authors.initials: K
authors.lastname: Fujii
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Watanabe
authors.forename: Takayuki
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Kei
authors.initials: K
authors.lastname: Hayashi
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000601:surgery*; D004285:Dogs; D005260:Female; D008297:Male; D019637:Orthopedic Procedures / Q000379:methods / Q000662:veterinary*; D031222:Patellar Dislocation / Q000601:surgery / Q000662:veterinary*