Factors affecting outcome ef extensor tendon lacerations in the distal limg of horses

Distal limb lacerations are common injuries in horses, with a better prognosis reported for extensor tendons lacerations comparted to flexor tendons lacerations. The object of the present study was to determine the influence of type and location of injury, modalities af treatment and post surgical complications on the outcome of extensor tendon lacerations. The medical records of 156 horses surgically treated for extensor tendon lacerations over a 10-year period were analysed retrospectively.

Information was obtained for 124 horses a minimum of 18months follow-up. Statistical analysis was performed on 129 horses (five horses were authanatized during hospitalization) in order to determine factors affecting  outcome.

Sevent-four percent of the horses returned to soundness, 17% had moderate gaint impairment and 9% remained lame. Approximately 60% of the sport horses returned to an equal or higher level of performance, and 17.5% returned to a lower level. In themultivariate statistical analysis, the only significant factor that favourably influenced outcome was complete suture af the woun. A significant association could not be detected between outcome and obsence of a functional extensor tendon. The most important post-surgical complication was extensive scarring of the wound. The present result report outcome af extensor tendon lacerations in a large number of horses and outline the importance of primary wound healing in order to avoid major scarring with potential functional consequences

Vet Comp Orthovet Traumatol; 21 : 358-364

Prepublished online Februaray 14,2008 doi: 13.3415/VCOT-07-07-0069

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