• Qing-he Liu, Wei Sun, Jun-lin Zhou, Xiao-bao Ren, Tie Lu, Lei Shan, and Yang Liu.
• Department of Orthopedics, Beijing Chao-Yang Hospital, Capital Medical University, No 8, Gongti South Road, Chaoyang District, Beijing, 100020, People's Republic of China.
• Eur J Orthop Surg Tr. 2014 May 1; 24 (4): 467-74.

AbstractThe optimal surgical treatment for displaced proximal humeral fractures continues to be controversial. One of the new treatment options is the minimally invasive intramedullary nail. The purpose of this study was to evaluate the functional outcome of using the TRIGEN proximal humeral nail (PHN) for the treatment of displaced proximal humeral fractures in elderly patients. From January 2004 to December 2008, 64 elderly patients (age > 60 years old) with displaced proximal humeral fractures were treated using TRIGEN PHN. A complete 12-month postoperative follow-up was available for 54 patients. The study cohort included two-part (29 shoulders), three-part (22 shoulders), and four-part (3 shoulders) Neer classification fracture types. The Constant-Murley score was used to assess functional outcome. Radiological outcomes were evaluated, and all complications were recorded. All fractures were united. The Constant-Murley score data indicated that the patients experienced improvement from 6 to 12 months postoperatively. The mean absolute Constant-Murley score on the injured side increased from 71.2 ± 11.2 points at 6 months to 82.4 ± 16.4 points at 12 months (P = 0.01). The mean neck-shaft angle 1 year after surgery was 125° ± 8.1° (95°-140°). Secondary complications were minimal and observed in only 6 of 54 patients. In conclusion, the TRIGEN intramedullary humeral nail is effective for the treatment of proximal humeral fractures.

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