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This report describes the case of an unusual humeral fracture in an eighteen month old Warmblood horse. The animal was admitted with a history of 5 weeks severe right forelimb… Click to show full abstract
This report describes the case of an unusual humeral fracture in an eighteen month old Warmblood horse. The animal was admitted with a history of 5 weeks severe right forelimb lameness. A pronounced shortening of the caudal phase of the stride was evident at a walk. Intraarticular analgesia of the shoulder just partially abolished the lameness, however arthrocentesis revealed serosanguinous synovial fluid. Several radiology projections were performed, but the findings were inconclusive. The ultrasonographic examination revealed tendonitis of the biceps brachii tendon, bicipital bursitis. Furthermore, a step defect and irregular bone surface were noted on the proximomedial humerus, indicating a lesser humeral tubercle fracture, confirmed by necropsy. This case emphasises the utility of ultrasonography in cases of proximal humeral fracture with inconclusive radiology findings.