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目的：总结应用单层补片装置行腹膜前间隙无张力修补术治疗腹股沟疝的临床疗效。方法采用随机、双盲、对照方法对151例腹股沟疝患者分别用腹膜前间隙覆盖的单层补片（试验组，76例）和腹膜前间隙及腹股沟管后壁均覆盖的双层补片（对照组，75例）行无张力修补术。术后1、3、6个月和1年随访，比较两组患者术后复发及切口感染、术后疼痛、局部肿胀、异物感等并发症发生情况。结果两组术后均未出现复发及切口感染。试验组术后1个月局部肿胀、异物感发生率（5.3％ vs ．16.0％、6.6％ vs ．17.3％）和术后1、3、6个月疼痛评分[（0.18±0.39）分vs ．（0.36±0.61）分、（0.08±0.27）分vs ．（0.21±0.41）分、（0.03±0.16）分vs ．（0.13±0.34）分]均低于对照组（P＜0．05）。结论应用单层补片装置行腹膜前间隙修补治疗腹股沟疝疗效好，并发症少。“,”Objective To summarize the clinical efficacy of single-layer patch device in preperitoneal tension-free hernioplasty for inguinal hernia .Methods In a randomized ,double-blind and controlled study ,151 cases with inguinal hernia received tension-free hernioplasty using single-layer patch device (group A ,76 cases) or double-layer patch device covering preperitoneal space and the posterior wall of the inguinal canal(group B ,75 cases) .The patients were followed up in 1 ,3 ,6 ,and 12 months after operation .The recurrence and complications such as incision infection ,postoperative pain ,local swelling and foreign body sensation were compared between two groups .Results No case with recurrence or incision infection occurred in two groups .The incidences of local swelling and foreign body sensation in a month after operation (5.3% vs .16.0% and 6.6% vs .17.3% ) and the pain score in 1 ,3 and 6 months after operation[(0.18 ± 0.39)points vs .(0.36 ± 0.61)points ,(0.08 ± 0.27) points vs .(0.21 ± 0.41) points and (0.03 ± 0.16) points vs .(0.13 ± 0.34) points] in group A were lower than those in group B ( P<0 .05 ) .Conclusion Using single-layer patch device in preperitoneal hernioplasty for inguinal hernia shows good curative efficacy and few complications .