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- Title
Surgical Repair of Mid-body Proximal Sesamoid Bone Fractures in 25 Horses.
- Authors
BUSSCHERS, EVITA; RICHARDSON, DEAN W.; HOGAN, PATRICIA M.; LEITCH, MIDGE
- Abstract
Objective To describe the characteristics of unilateral mid-body proximal sesamoid bone (PSB) fractures, to determine factors associated with the outcome of horses after surgical repair, and to describe a technique for arthroscopically assisted screw fixation in lag fashion. Study Design Retrospective case series. Animals Horses (n=25) with unilateral mid-body PSB fracture. Methods Medical records (1996–2006), radiographs, and arthroscopic videos of horses with surgically repaired unilateral mid-body PSB fractures were reviewed. Retrieved data included signalment, affected limb and PSB, fracture characteristics, and surgical technique. Outcome was established by radiographic assessment of healing and race records; categorical data were analyzed using Fisher's Exact test. Results Medial forelimb PSBs were most commonly affected (80%). Surgical technique and degree of reduction were significantly associated with outcome; 44% of horses with screw repair and none of the horses with wire fixation raced ( P=.047). Factors that may have influenced this outcome were differences in fracture reduction (improved reduction in 22% wire repairs and 88% screw repairs, P=.002) and use of external coaptation (22% wire repair and 88% lag screw repair, P=.002). None of the horses with unimproved reduction raced after surgery. Conclusions Only 28% of horses with mid-body PSB fractures raced after surgery. Compared with wire fixation, screw fixation in lag fashion resulted in good reduction and is seemingly a superior repair technique. Clinical Relevance For mid-body PSB fractures, arthroscopically assisted screw fixation in lag fashion and external coaptation for anesthesia recovery and initial support provides the best likelihood of return to athletic use.
- Publication
Veterinary Surgery, 2008, Vol 37, Issue 8, p771
- ISSN
0161-3499
- Publication type
Article
- DOI
10.1111/j.1532-950X.2008.00445.x