Computed tomographic guidance for internal fixation of type II distal phalangeal fractures in 51 horses.

Equine Veterinary Journal
Lauren E SmanikDean W Richardson

Abstract

Type II distal phalanx (P3) fractures are a well-described cause of lameness in horses. Reports on outcome following internal fixation of type II P3 fractures are lacking, and with little emphasis on complications. To describe a technique for internal fixation of type II P3 fractures, and evaluate whether specific variables influenced post-operative complications or a horse's ability to return to work. Retrospective case series. Medical records of 51 horses with CT-guided internal fixation of type II P3 fractures were reviewed. Outcome data were acquired from race records and telephone interviews. Associations between independent variables and outcome were analysed using multivariable logistic regression. Eighty-six per cent (95% CI 74%-94%; n = 44) successfully returned to work. Implant infection (n = 15) and distal interphalangeal joint osteoarthritis (n = 9) were the most common complications, with the latter reducing the likelihood of success (OR = 0.09, 95% CI 0.01-0.7, P = .02). Implant infection increased the time to return to work (HR = 0.5, 95% CI 0.2-0.9, P = .03). The odds of delayed infection decreased by filling the hoof defect with acrylic hoof adhesive rather than poly(methyl methacrylate) and deeply countersinki...Continue Reading

References

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