Abstract

• From 1993 to 1996, we have used hemiarthroplasty on shoulder for comminuted fracture and fracture-dislocation of proximal humerus. The study reviewed 8 patients with on average age 62.1 years. The hemiarthroplasty was performed at average 5 days following injury. The purpose of this study was to evaluate pain, function, range of motion, strength, patients satisfaction. All cases was performed using cement and surgical approach was deltopectoral. Average follow up was 33 months after operation(range, 24 to 45 months). According to UCLA shoulder rating scale, 5 patients(63%) were satisfactory and 3 patients(37%) were unsatisfactory. Average active flexion was 110, and average abduction was 97 and average external rotation was 39, average internal rotation to the first lumbar vertabrae. Average humeral offset on fractured shoulder was 20.5 and average humeral offset on normal uninjured shoulder was 30.8. For functional improvement of shoulder hemiarthroplasty, We concluded humeral length restoration and humeral offset preservation is very crucial factors.
• Key words: Proximal Humerus, Fracture, Hemiarthroplasty, Humeral Offset

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