Background: Rectus diastasis (RD) is defined as widening of the linea alba and laxity of the abdominal muscles. It can be treated via a wide array of both conservative and surgical modalities. Due to the quickly evolving nature of this field coupled with the multiple novel surgical modalities described recently, there is a need for an updated review of surgical techniques and a quantitative analysis of complications and recurrence rates.

Methods: A systematic review of PUBMED and EMBASE databases was preformed to retrieve all clinical studies describing surgical management of RD. Pooled analyses were preformed to assess recurrence and complication rates after both open and laparoscopic RD repairs (after controlling for herniorrhaphy).

Results: A total of 56 papers were included in this review. In patients who underwent both an RD and a herniorrhaphy, there was no significant difference in recurrence rates between open (0.86%) and laparoscopic repairs (1.6%) (p > 0.05). Similarly, in patients who underwent RD repair without a herniorrhaphy, there was no significant difference in recurrence rates between open (0.89%) and laparoscopic repairs (0%) (p > 0.05). The most common complications reported were seroma, skin dehiscence, hematoma/post-operative bleeding, and infection. After controlling for a herniorrhaphy, there were no significant difference in total complication rates between open and laparoscopic RD repair. The total complication rates in patients who underwent an open RD repair with a herniorrhaphy were 13.3% compared to 14.5% in patients who underwent laparoscopic repairs (p > 0.05). Similarly, the total complication rates in patients who underwent RD repair without a herniorrhaphy were 11.8% in patients who underwent open repairs compared to 16.2% in their counterparts who underwent laparoscopic repairs (p > 0.05).

Conclusion: Both open and laparoscopic approaches are safe and effective in repairing RD in patients with and without concurrent herniorrhaphy. Future research should report patient reported outcomes to better differentiate between different surgical approaches.