Objective To explore the therapeutic effects of extension - block compression Kirschner wire on mallet fractures. Methods From May 2004 to June 2009,23 cases of mallet finger deformities treated with extension - block compression Kirschner wire were included in this study. Among them,there were 2 cases of type Ⅰ a,8 cases of type Ⅰ b,7 cases of type Ⅱ a ,4 cases of type Ⅱ b and 2 cases of type Ⅲ. Results 23 patients were followed up for 5-31 months ( 15 months on average ). The mean union time of all fractures was 6 w. Excellent results were obtained in 14 cases,good in 7 cases,fair in 2 cases according to Crawford's criteria,and the good rate was 91. 3%. No serious postoperative complications such as pin hole infection,Kirschner wire loosening, pressure necrosis of skin edge and nail bed, and nail plate deformity. Conclusion Extension - block compression Kirschner wire technique is a simple and effective method for the treatment of mallet finger deformity.%目的 探讨背伸阻挡加压克氏针治疗mallet骨折的疗效.方法 2004年5月～2009年6月,应用背伸阻挡加压克氏针治疗23例骨性锤状指,其中Ⅰa型2例,Ⅰb型8例,Ⅱa型7例,Ⅱb型4例,Ⅲb型2例.结果 所有患者术后获5～31个月(平均15个月)随访,23例平均愈合时间为6 w.术后疗效评定:优14例,良7例,可2例,优良率为91.3%.术后未发生针道感染、克氏针松动、皮缘及甲床压迫坏死及甲板畸形.结论 背伸阻挡加压克氏针技术是一种简单有效的治疗骨性锤状指手术方法.
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