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目的:探讨顺行克氏针髓内固定治疗青少年第五掌骨颈骨折的临床疗效。方法:自2017年5月至2019年10月，我们采用闭合复位、经皮顺行克氏针髓内固定治疗11例明显移位的青少年第五掌骨颈骨折。术后随访患侧、健侧第五掌骨头干角、掌指关节主动活动度、疼痛视觉模拟评分(visual analogue scale，VAS)、抓握力量等，并进行统计学分析，评价手术疗效及功能恢复情况。结果:术后随访时间为12～24个月，平均17.1个月，所有骨折均达到解剖复位，骨折愈合时间为2～4个月，平均(2.8±1.1)个月。患侧第五掌骨背侧成角畸形从术前(44.5±2.6)°显著降至术后(15.7±2.5)°(n P<0.001)。术后第五掌骨掌指关节主动活动度，患侧(87.9±2.4)°与健侧(88.5±2.4)°比较差异无统计学意义(n P＝0.084)。术后VAS为0～2分，平均(0.18±0.60)分。患侧抓握力为健侧的85%～101%，平均(91.5±4.5)%。所有患者均未出现骨折不愈合、移位、功能障碍、畸形以及掌骨头坏死。本组中1例患者出现骨骺板提前闭合，但未发生肢体短缩和成角畸形。n 结论:顺行克氏针髓内固定方法治疗青少年第五掌骨颈骨折，术后功能和外形恢复良好，是一种可靠的手术方式。该术式虽存在潜在的生长板损伤风险，对于骨骺板接近闭合的青少年患者是较好的选择。“,”Objective:To investigate the clinical efficacy of antegrade Kirschner wire intramedullary fixation in the treatment of adolescent fifth metacarpal neck fracture.Methods:From May 2017 to October 2019, 11 cases of obviously displaced fifth metacarpal neck fractures in adolescents were treated by close reduction and percutaneous antegrade Kirschner wire intramedullary fixation. Postoperative follow-up included the affected and uninjured fifth metacarpal head-trunk angle, active range of motion of metacarpophalangeal joint, visual analogue scale (VAS) of pain, grip strength, etc., and statistical analysis was performed to evaluate the surgical efficacy and functional recovery.Results:The follow-up time was 12 to 24 months with an average of 17.1 months. All the fractures achieved anatomical reduction. The fracture healing time was 2 to 4 months with an average of (2.8±1.1) months. The incidence of the fifth dorsal metacarpal angulation decreased from (44.5±2.6)° preoperatively to (15.7±2.5)° postoperatively (n P<0.001). There was no significant difference in the active range of motion of the fifth metacarpal metacarpophalangeal joint between the affected side (87.9±2.4)° and the healthy side (88.5±2.4)° (n P=0.084). Postoperative VAS was 0 to 2 with an average of (0.18±0.60). The grip strength of the affected side was 85% to 101% of that of the healthy side, with an average of (91.5±4.5)%. There was no nonunion, displacement, dysfunction, deformity and metacarpal head necrosis in all patients. In this group, one patient had early closure of epiphyseal plate, but no limb shortening and angulation.n Conclusion:The antegrade Kirschner wire intramedullary fixation is a reliable method for the treatment of adolescent fifth metacarpal neck fracture, with good postoperative recovery of function and appearance. Although there is a potential risk of growth plate injury, it is a better choice for adolescent patients with epiphyseal plate close to closure.