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Meta-Analysis
. 2021 May;36(5):893-902.
doi: 10.1007/s00384-020-03820-7. Epub 2021 Jan 7.

Comparison of perineal morbidity between biologic mesh reconstruction and primary closure following extralevator abdominoperineal excision: a systematic review and meta-analysis

Yu Tao  1 , Jia Gang Han  2 , Zhen Jun Wang  3   4
Affiliations
Meta-Analysis

Comparison of perineal morbidity between biologic mesh reconstruction and primary closure following extralevator abdominoperineal excision: a systematic review and meta-analysis

Yu Tao et al. Int J Colorectal Dis. 2021 May.

Abstract

Aim: Extralevator abdominoperineal excision (ELAPE) for rectal cancer leaves a greater perineal defect which might result in significant perineal morbidity, and how to effectively close perineal defects remains a challenge for surgeons. This study aimed to comparatively evaluate the perineal-related complications of biologic mesh reconstruction and primary closure following ELAPE.

Method: The electronic databases PubMed, EMBASE, Cochrane Library, and Web of Science were searched to screen out all eligible studies, which compared biologic mesh reconstruction with primary closure for perineal-related complications following ELAPE. Pooled data of perineal-related complications including overall wound complications, hernia, infection, dehiscence, chronic sinus, and chronic pain (12 months after surgery) were analyzed.

Results: A total of four studies (one randomized controlled trial and three cohort studies) involving 544 patients (346 biologic mesh vs 198 primary closure) were included. With a median follow-up of 18.5 months (range, 2-71.5 months). Analysis of the pooled data indicated that the perineal hernia rate was significantly lower in biologic mesh reconstruction as compared to primary closure (OR, 0.38; 95% CI, 0.22-0.69; P = 0.001). There were no statistically significant differences between the two groups in terms of total perineal wound complications rate (P = 0.70), as well as rates of perineal wound infection (P = 0.97), wound dehiscence (P = 0.43), chronic sinus (P = 0.28), and chronic pain (12 months after surgery; P = 0.75).

Conclusion: Biologic mesh reconstruction after extralevator abdominoperineal excision appears to have a lower hernia rate, with no differences in perineal wound complications.

Keywords: Biologic mesh; Extralevator abdominoperineal excision; Meta-analysis; Perineal complications; Primary closure.

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