Ischiatic nerve paralysis occurred in a 2-year-old female Doberman Pinscher following use of the biceps femoris muscle sling technique with excision arthroplasty recommended for coxofemoral disorders. Exploratory surgery of the ischiatic nerve revealed its abnormal branching pattern into the muscle sling resulting in neurological dysfunction. Sixty canine hind limbs were dissected for evaluation of the ischiatic nerve branching pattern in the thigh region. One limb was found to have the same ischiatic nerve anatomy as the case reported here. Although this anatomical finding appears to be of low incidence, surgeons using the biceps femoris sling surgery should be aware of this variation and potential neurological complication.
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