Abstract:Objective To analyze the technical characteristics and therapeutic effects of different repair methods in second pectus excavatum(PE) surgery so as to provide reference for the selection of PE operation. Methods Out of 31 patients undergoing secondary pectus excavatum surgery from January 2014 to October 2020 in the 983rd Hospital of Joint Service Support Force of Chinese PLA, 17 cases treated with minimally invasive correction of pectus excavatum (modified Nuss group) and 11 cases treated with novel minimally invasive procedure for pectus excavatum (Wang procedure group). The operation time, intraoperative blood loss, complications, postoperative hospital stay and patient satisfaction were observed and analyzed between two groups. The patients were followed up for 4-72 months. Results The satisfaction rate of patients after surgery was 100% in both groups. Compared with Wang operation group, the operation time ［(81.19±25.07)min vs (47.19±10.21)min］ and postoperative hospital stay ［(8.30±1.10)d vs (6.50±1.40)d］ statistically increased in modified Nuss group (P<0.01). There were no significant differences in intraoperative bleeding ［(30.22±12.16)ml vs (24.22±8.16)ml］ and incidence of complication (23.53% vs 9.09%) between modified Nuss group and Wang operation group (P>0.05). Conclusion Although both modified Nuss procedure and Wang operation have achieved good results in second pectus excavatum surgery, the comprehensive analysis of perioperative indicators shows that Wang procedure is simple and safe and has greater advantages in the secondary correction of pectus excavatum.