微创经皮钢板内固定治疗肱骨近端骨折

目的 探讨微创经皮钢板内固定(minimally invasive percutaneous plate osteosynthesis,MIPPO)技术在肱骨近端骨折中的临床应用及随访疗效.方法 2006年12月-2008年9月运用MIPPO技术使用锁定钢板治疗36例肱骨近端骨折患者,其中男23例,女13例.根据AO/OTA分型:A2型4例,A3型10例,B1型5例,B2型11例,C1型3例,C2型3例.经肩前外侧横行或纵行做皮肤切口,纵行分离三角肌,探及骨折,直视下间接和直接复位.经骨表面肌肉下隧道向骨折远端插入锁定钢板,于钢板远端做纵行切口,远近端分别用锁定螺钉固定.术后定期随访,指导功能锻炼,并评定其疗效.结果 手术时间(50.1±11.3)min,出血(76.3±18.7)ml,手术切口(4.5±0.8)cm.36例均获随访12～17个月,平均14个月,所有患者均骨性愈合,愈合时间(10.1±1.2)周.按Neer评分标准,总优良率为86%.结论 利用MIPPO技术治疗肱骨近端骨折安全有效、创伤小、骨愈合时间短,能得到较好的影像学复位,术后疼痛较少.

Minimally invasive percutaneous plate osteosynthesis for treatment of proximal humeral fractures

Objective To explore the clinical application and follow-up results of minimally invasive percutaneous plate osteosynthesis (MIPPO) in treating proximal humeral fractures. Methods From December 2006 to September 2008, MIPPO using locking plate was employed to treat 36 patients (23 males and 13 females) with proximal humeral fracture. According to AO classification, there were four patients with type A2 fractures, 10 with type A3 fractures, five with type B1 fractures, 11 with type B2 fractures, three with type C1 fractures and three with type C2 fractures. Longitudinal or transverse incision was made through anterolateral acromial approach to separate the deltoid muscle and expose the fracture fragments. The direct and indirect reduction of the fractures were performed under direct vision. The locking plate was inserted distally beneath the deltoid muscle and a longitudinal incision was made at the lateral end of the plate. Locking screws were inserted to the proximal and distal plates. Postoperative follow-up was done to provide guidance to functional exercise and evaluate the clinical results. Results The operation lasted for (50.1±11.3) minutes, with intra-operative blood loss of(76±18.7) ml and average operative incision of (4.5±0.8) cm. All the patients were followed up for 12-17 months (average 14 months), which showed that the time of bone healing was (10. 1 ±1.2) weeks. Neer scoring standards showed the total excellence rate of 86%. Conclusion MIPPO is an ideal method for treatment of proximal humeral fractures, for it has the advantages such as safety, minor trauma, short bone healing time, alleviation of pain and good X-ray reduction.