Monteggia lesion in an Asian small-clawed otter (Aonyx cinerea).
A 10-yr-old female Asian small-clawed otter (Aonyx cinerea) presented with a history of right forelimb lameness. Antebrachial radiographs revealed a Monteggia lesion, classified by cranial radial head luxation and distal diaphyseal ulnar fracture. Open reduction with placement of an ulnar-radial positional screw was performed. The lateral collateral ligament was reconstructed using suture anchored by a condylar screw and bone tunnel in the radius. Reduction and proper implant placement was confirmed on postoperative radiographs. The ulnar-radial positional screw was removed 6 wk postoperatively to allow proper supination and pronation. Limb function was greatly improved at this time; however, a mild lameness was still observed. At 7 mo postoperatively, the otter was ambulating lameness-free. Radiographs documented proper joint reduction and stable condylar screw. At 32 mo postoperatively, the otter continued to exhibit normal ambulation.
Columbus Zoo and Aquarium, 9990 Riverside Drive, Powell, OH 43065, USA. hpeters@cityofboise.org
Holly J
HJ
Peters
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, 601 Vernon L. Tharp Street, Columbus, OH 43210, USA.
Bianca F
BF
Hettlich
Columbus Zoo and Aquarium, 9990 Riverside Drive, Powell, OH 43065, USA.
Michael T
MT
Barrie
D000818:Animals; D005260:Female; D009011:Monteggia's Fracture / Q000175:diagnosis / Q000601:surgery / Q000662:veterinary*; D010041:Otters