title: Diagnosis and Surgical Management of Congenital Laxity of the Fibularis Musculotendinous Unit Resulting in Hyperextension of the Tarsus in 14 Calves.
abstract: OBJECTIVE
  To describe the diagnosis and surgical management of congenital laxity of the fibularis tendon resulting in hyperextension of the tarsus in calves.
  
  
  METHODS
  Case series.
  
  
  METHODS
  Fourteen calves (3 unilateral, 11 bilateral) diagnosed with congenital tarsal instability caused by laxity of the fibularis musculotendinous unit resulting in hyperextension of the tarsus.
  
  
  METHODS
  Diagnosis was made by clinical and radiologic assessments. The tarsus was surgically prepared and an incision made on the dorsal surface of the tarsus after intrathecal anesthesia with the calf sedated. A locking-loop suture (4 loops) was applied to the fibularis tendon using polyglactin 910. The free ends of the suture were then tied to the shank of a cortical bone screw inserted in the proximal metatarsus.
  
  
  RESULTS
  The calves were evaluated on postoperative days 15, 30, and 60 and were walking normally.
  
  
  CONCLUSIONS
  Congenital tarsal instability because of laxity of the fibularis musculotendoninous unit is described and surgical treatment directed at shortening the tendon shows promising results.
authors.affiliation: Department of Surgery, Faculty of Veterinary Medicine, University of Kafkas, Kars, Turkey.
authors.forename: Engin
authors.initials: E
authors.lastname: Kilic
authors.affiliation: Department of Surgery, Faculty of Veterinary Medicine, University of Kafkas, Kars, Turkey.
authors.forename: Isa
authors.initials: I
authors.lastname: Ozaydin
authors.affiliation: Department of Surgery, Faculty of Veterinary Medicine, University of Kafkas, Kars, Turkey.
authors.forename: Ozgur
authors.initials: O
authors.lastname: Aksoy
authors.affiliation: Department of Surgery, Faculty of Veterinary Medicine, University of Kafkas, Kars, Turkey.
authors.forename: Sadik
authors.initials: S
authors.lastname: Yayla
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000151:congenital / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D008297:Male; D011859:Radiography; D013640:Tarsal Joints / Q000503:physiopathology / Q000601:surgery*; D013710:Tendons / Q000503:physiopathology