A neonate male addax calf displayed an inability to extend its forelimbs bilaterally (range of motion restricted to 45°–50° on full extension) with resultant inability to stand. Based on examination and radiographs, the congenital defect was attributed to contracted soft tissue structures (joint capsule and/or intercarpal ligaments). Splinting, support of the limbs, and physical therapy resulted in moderate improvement of the angle of contraction (full flexion to approximately 120° on extension at day 10). The animal was able to walk with splints but died at 10 days from acute head trauma, presumably related to a traumatic fall caused by challenges with ambulation. Postmortem examination confirmed soft-tissue contracture of the forelimbs. Malposition of the calf in utero was considered a possible cause of the defect.
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