• Kazuya Tamai, Wataru Ohno, Michio Takemura, Hirotaka Mashitori, Jun'ichiro Hamada, and Koichi Saotome.
• Department of Orthopaedics, Dokkyo University School of Medicine, Mibu, Tochigi, 321-0293, Japan.
• J Orthop Sci. 2005 Jan 1; 10 (2): 180-6.

AbstractWe have developed a new intramedullary nail (All-in-One Nail) that is specifically designed for elastic fixation of a surgical neck fracture of the humerus. This nail has three pins and a plate, and the pins become divergent as the nail is inserted into the marrow cavity through the deltoid tuberosity and then advanced to the humeral head. We reviewed 31 patients with an age range of 58-91 years (mean 75 years) who underwent surgery with this nail for A3.2 (two-part), B2.2 (three-part), or C2.1 (valgus-impacted) fractures of the proximal humerus. Bony union was obtained in 29 patients, and these patients had a Japanese Orthopaedic Association shoulder score of 60-92 (mean 78) in a follow-up examination performed 6-32 months (mean 13 months) postoperatively. The All-in-One Nail system is easy to use, provides an acceptable clinical outcome, and is a treatment option for unimpacted surgical neck fractures and valgus-impacted fractures of the humerus.

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