Running head: TRICEPS BRACHII TENDON INJURY IN DOGS

19 The cases of 4 Pomeranians with injury of the triceps brachii tendon that underwent surgical 20 treatment were retrospectively reviewed to evaluate some clinical findings including signalment, 21 cause of injury, clinical signs, pattern of injury, surgical technique, external coaptation after 22 operation, complications, and outcomes. While all of the dogs showed non-weight bearing posture of 23 the affected limbs and severe pain shortly after injury onset, the pain level decreased over time. A 24 characteristic finding of the 4 cases was an absence of tension in the triceps brachii tendon when the 25 elbow joint was flexed. The pattern of triceps brachii tendon injury was either laceration of the 26 central part of the tendon (n = 1) or tendon rupture at its insertion to the olecranon (n = 3). Although 27 there were no major complications after surgery in 3 cases, the remaining case required a revision 28 surgery. Long lateral splint was effective method for external coaptation after operation. Diagnosis 29 of triceps brachii tendon injury was not difficult if we even recognize this trauma. This form of 30 injury can have a good prognosis with adequate surgery and postoperative coaptation. 31 KEY WORD: dog, tendon, three-loop pulley, triceps 32