The Surgical Outcomes for Isolated Greater Tuberosity Fracture of Proximal Humerus

ABSTRACT

PURPOSE: To evaluate the adequate surgical methods and postoperative rehabilitation by analyzing the outcome of surgical treatment for isolated greater tuberosity fracture of proximal humerus. MATERIALS AND METHODS: Ten patients who allowed at least 1 year follow up after the surgical treatment of isolated greater tuberosity fractures were evaluated. Their mean age was 52.3 years (range, 28~67) and mean follow up duration was 23.8 months (range, 12~36). We choosed the different approaches and fixation methods according to size, location and presence of comminution of the fragment, and combined injury. The rehabilitation programs were indivisualized and we evaluated the clinical outcomes using UCLA and Constant scoring system. RESULTS: According to the UCLA scoring system, 5 cases were excellent, 3 cases were satisfactory, and 2 cases were unsatisfactory. By the Constant scoring system, 8 cases were excellent and 2 cases were good. The average bony union time was 7.6 weeks (range, 6~8) except the 2 cases of revision surgery. Two cases were operated using cannulated screws alone, 3 cases using only nonabsorbable sutures and 5 cases using cannulated screws and nonabsorbable sutures. One out of two revision cases was developed from the negligence of preoperative shoulder anterior dislocation with rupture of subscapularis, and the other was caused by improper immobilization of the fracture site postoperatively. CONCLUSION: Not only the adequate surgical approaches and the fixation methods according to the size and comminution of fragment, but also the identification of combined injuries were very important in the surgical treatment for the isolated greater tuberosity fracture. And we considered that the adequate postoperative rehabilitation and proper protection based on the intraoperative fixation stability play an important role for the better clinical and radiological outcomes.