Shape memory Ni-Ti alloy swan-like bone connector for treatment of humeral shaft nonunion |
| |
Authors: | Jia-can Su Xin-wei Liu Bao-qing Yu Zhuo-dong Li Ming Li Chun-cai Zhang |
| |
Institution: | (1) Department of Orthopaedic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, 200433, People’s Republic of China; |
| |
Abstract: | From August 1990 to December 2007, 156 patients with humeral shaft nonunion were treated with our patented Ni-Ti shape memory
alloy swan-like memory pressure connector (SMC). The SMC device cooled with ice before implantation was warmed to 40–50°C
after implantation to produce balanced axial and compression forces to stabilise the fracture three-dimensionally. This combined
with autologous bone grafting achieved bone tissue regeneration in the fracture and promoted smooth recovery of joint function,
with a nonunion healing rate of 98.7% after a single SMC implantation. Failure of nonunion healing occurred in only two cases
but was successfully managed by a further operation. Complications were not found in any of these patients apart from four
with pre-existing radial nerve injuries. These results demonstrate the effectiveness of the SMC device for the management
of humeral shaft nonunion. The device provides continuous compression of the fracture with minimal trauma to the local blood
supply. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|