A13.5-kg (29.7-lb) 4.6-month-old male pot-bellied pig was evaluated at the Onderstepoort Veterinary Academic Hospital because of a non-weight-bearing lameness of the right forelimb of 4 days' duration. On evaluation, the pig' s vital parameters were within reference limits. A non-weight-bearing lameness was evident in the right forelimb, which was carried in a semiflexed position with a dropped elbow joint. Physical examination of the affected limb revealed no abnormalities distal to and including the right elbow joint. Moderate swelling was present over the right shoulder region, and a painful response was elicited when this area was manipulated.Radiographs of the right shoulder region were obtaned while the pig was under sedation with azaperone (2 mg/kg [0.9 mg/lb], IM). A closed lateral luxation of the right shoulder joint was diagnosed: the humeral head was located lateral and slightly cranial to the scapula (Figure 1). No other remarkable radiographic findings were present. Flunixin meglumine (1.1 mg/kg [0.5 mg/lb], IM, q 24 h) was administered for its antiinflammatory and analgesic properties.The day after initial evaluation, closed reduction of the luxated joint was attempted. Food was withheld from the pig for 8 hours prior to the procedure. Morphine sulfate (0.3 mg/kg [0.14 mg/lb], IM) and midazolam hydrochloride (0.2 mg/kg [0.09 mg/lb], IM) were administered for premedication. A 24-gauge, 1-inch (25-mm) IV catheter was placed in the auricular vein. After 5 minutes of administration of 100% oxygen with a tight-fitting mask, general anesthesia was induced with propofol (4.4 mg/kg [2.0 mg/lb], IV). A 6-mminternal diameter cuffed endotracheal tube was used for orotracheal intubation, and anesthesia was maintained with isoflurane in oxygen administered through a circle breathing circuit. Crystalloid fluids (lactated Ringer' s solution) were administered IV at a rate of 10 mL/kg/h (4.5 mL/lb/h) continuously during anesthesia. To attempt reduction of the luxation, traction was applied to the affected limb and manual pressure was placed on the humeral head while simultaneously abducting and externally rotating the limb. On the basis of findings on repeated radiography, this procedure was unsuccessful. The pig recovered uneventfully from anesthesia. Open reduction and internal fixation were performed 2 days later after obtaining informed consent for surgery from the owner.Food was withheld from the pig for 8 hours prior to surgery. Trimethoprim-sulphamethoxazole (20 mg/kg [9 mg/lb], PO) and meloxicam (0.5 mg/kg [0.23 mg/lb], PO) were administered before surgery. Administration of flunixin was discontinued and substituted with meloxicam (0.4 mg/kg [0.18 mg/lb], PO, q 24 h) to reduce the risks of gastrointestinal adverse effects. Premedication, anesthetic induction, and maintenance of general anesthesia were performed as described for the previous attempt at closed reduction of the luxation. The pig' s blood pressure, ECG, PO 2 , PCO 2 , and esophageal temperature were monitored throughout the surgical procedure....