钢板前置固定治疗肱骨中下段骨折

目的探讨钢板前置固定治疗肱骨中下段骨折的疗效，以及预防医源性桡神经损伤的可能性。方法1998年3月-2002年12月，采用此手术方法治疗肱骨中下段骨折49例．男38例，女11例。年龄18～63岁，平均35岁。新鲜骨折27例，陈旧性骨折12例，骨折不愈合10例。按AO分型：A型19例；B1型14例，B2型9例，B3型5例；C1型2例。闭合骨折37例；开放骨折12例，其中GustiloⅠ型8例，Ⅱ型4例。合并桡神经损伤4例。手术经前方入路，将钢板置于肱骨前方固定。合并桡神经损伤者，行桡神经探查。结果术后有48例获6～48个月随访，平均28．7个月。骨愈合时间3～9个月，平均4．7个月。手术取除钢板37例。49例行82次(4例合并桡神经损伤除外)手术，均未发生医源性桡神经损伤。结论经前方入路，将钢板置于肱骨前方固定既不影响骨折愈合，又能避免医源性桡神经损伤。

THE TREATMENT OF MIDDLE AND LOWER THIRDS FRACTURES OF HUMERUS BY ANTERIOR PLATE FIXATION

OBJECTIVE: To study the effect of anterior plate fixation on the treatment of middle and lower thirds fractures of humerus and the possibility of operating without injuring the radial nerve. METHODS: Forty-nine patients with the middle and lower thirds fractures of the humerus were treated with anterior plate fixation from March 1998 to December 2002. Of the 49 patients, 27 were with new fractures, 12 with old fractures, and 10 with nonunion fractures. According to AO classification, of the 49 patients, there were 19 type A, 14 type B1, 9 type B2, 5 type B3, 2 type C1. Thirty-seven patients had closed fractures and 12 had open fractures. Of the 12 patients, 8 were type Gustilo I , 4 were type Gustilo I . Four out of the 49 patients were associated with radial nerve palsy. All patients were treated with anterior plate fixation through the anterior approach to the humerus. The radial nerves injured were explored. RESULTS: Of the 49 patients, 48 were followed up 6 to 48 months (28.7 months on average). All fractures were healed within 3 to 9 months(4.7 months on average). Fixed plates of 37 patients out of the 49 were removed. No iatrogenic radial nerve injury occurred in the 82 times of the operations among the 49 patients. CONCLUSION: The treatment of middle and lower thirds fractures of humerus by anterior plate fixation through the anterior approach to the humerus does not interfere with the fracture healing and can prevent the iatrogenic radial nerve injury.