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The purpose of the tibia and fibula bone demolition clinical frequently-occurring disease, the highest incidence in the fracture of long bones of the body, all leg fracture accounted for about 10%, and with the increasing development of the construction industry and the transportation industry, its incidence is increasing year by year. Tibia and fibula open comminuted fracture with unilateral external fixator, intraoperative simple operation, excellent high fracture healing, the healing time is short, the complication rate is low. The topics to explore Gustilo Ⅱ type, Ⅲ a, Ⅲ b-type tibial fracture single arm the external fixation superiority, as well as the treatment of postoperative complications; motorized and compare external fixation in bone demolition of healing in the late of fracture healing the impact. Methods 57 cases of patients were from September 2006 to June 2008 for medical treatment in the Hubei Province Traditional Chinese Medicine Hospital and the Guangzhou Military Region, Wuhan Total Hospital orthopedic openness of the tibia comminuted fracture patients, are in line with Gustilo Ⅱ type, Ⅲ a type, Ⅲ b-type tibial bone bone demolition of selection criteria. All patients with unilateral external fixator, generally in about six days, when the X-ray showed early callus formation, were randomly divided into fracture healing in the latter part of the power of the group (referred to as the power of group, n = 30) and fracture healing in the late not motorized group (not the power of the group, 27 cases), in which the power of group to implement the the external fixator motorized adjustment, extend lock New Zealand powered external fixation, reduce the shielding effect, fracture fixed by rigid fixation change elastic fixation, and close observation of the external fixator pin tightness and direction, timely adjustment. The not motorized group without power treatment, only the observed external fixation needle tightness and direction, timely adjustment, no longer lock Zealand does not reduce the vertical stress shielding. All patients were followed up for 2 to 12 months, and the two groups were compared efficacy excellent rate, healing time and delay the healing rate of infection. Results 1. Postoperative efficacy excellent rate Johner-Wruh assessment standards, excellent rate of 48 cases, 84.2% of the total number of cases; average healing time was 5 months; nine cases of delayed union, 15.8% of the total number of cases; infection rate cases, the total number of cases 12.3%: the power of group efficacy good rate of 93.3%, excellent unused power of group efficacy rate of 74.1%, both good clinical efficacy rate significantly different (P <0.05); 3 motorized fracture group average healing time was 3.5 ± 2 months, not motorized group, the average healing time was 5 ± 2.5 months, the healing time of the two groups was significant difference (P <0.05); motorized two cases of delayed union group accounted for 6.7%, not the power of group seven cases of delayed union, accounting for 25.9%. Two groups a significant difference (p <0.05); power of group 3 patients shallow infections, cases of deep infection, not the power of group 2 cases of superficial infection, cases of deep infection infection rate of the two groups were 13.3 % and 11.1%, the difference was not statistically significant (P> 0.05). Conclusions external fixation with a short course of treatment, trauma, fixed effects, the high rate of fracture healing, the infection rate is low, the functional recovery rapid unique therapeutic effect in the treatment of tibial open comminuted fracture. Implemented in the late fracture healing the external fixator power of fracture healing the excellent rate significantly more than the unused power of group, the power of group healing time is significantly shorter than the unused power of the group. 3. Clinical treatment with Gustilo Ⅱ type, Ⅲ a type, Ⅲ b-type tibial fracture fixed bracket preferred fixed in fracture healing in the late fixed bracket rigidly fixed transformation for elastic fixation, that is outside the fixed bracket power technology, can promote fracture better, faster healing.
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