Transfixation pinning and casting of radial-ulnar fractures in calves: A review of three cases

We reviewed the medical records of three calves with radial-ulnar fractures which were reduced and stabilized by transfixation pinning and casting. Multiple Steinmann pins were placed transversely through proximal and distal fracture fragments and the pin ends were incorporated in fiberglass cast material after fracture reduction. Cast material was placed from proximal to distal radius and served as an external frame to maintain pin position and fracture reduction.

At the time of injury, the calves ranged in age from one day to two months and weighed from 37-102 kg. Two fractures were comminuted and one was transverse. All fractures were closed. After surgery, all calves could walk within 24 hours. Radiographic and clinical evidence of fracture healing was present five to seven weeks (mean 6) after surgery. At that time, the pins and cast material were removed. Return to normal function was rapid and judged to be excellent at follow-up evaluation five to nine months later.

Advantages of transfixation pinning and casting in management of radial-ulnar fractures include flexibility in pin positioning, adequate maintenance of reduction, early return to weight-bearing status, preservation of joint mobility, and ease of ambulation. The inability to adjust fixation and alignment after cast application is a disadvantage of this technique compared with other external fixators. We concluded that transfixation pinning is a useful means of stabilizing radial-ulnar fractures in pediatric bovine patients.