Journal
HERNIA
Volume 25, Issue 4, Pages 883-890Publisher
SPRINGER
DOI: 10.1007/s10029-021-02468-8
Keywords
Diastasis recti abdominis; Intra-rectus distance; Abdominal rectus muscle; Risk factor; Semilunar line
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Funding
- Universita degli Studi dell'Insubria within the CRUI-CARE Agreement
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This article critically reviews the prevalence and risk factors of diastasis recti abdominis (DRA). Results suggest that DRA is a highly prevalent condition, with parity, BMI, and diabetes being potential risk factors. Additionally, a new anatomical variation was identified that could be associated with DRA. Further large sample studies are necessary to determine the true prevalence.
Purpose Diastasis recti abdominis (DRA) or rectus diastasis is an acquired condition in which the rectus muscles are separated by an abnormal distance along their length, but with no fascia defect. To data there is no consensus about risk factors for DRA. The aim of this article is to critically review the literature about prevalence and risk factor of DRA. Method A total of 13 papers were identified. Results The real prevalence of DRA is unknown because the prevalence rate varies with measurement method, measurement site and judgment criteria, but it is certainly an extremely frequent condition. Numbers of parity, BMI, diabetes are the most plausible risk factors. We identified a new anatomical variation in cadaveric dissection and in abdominal CT image evaluation: along the semilunar line the internal oblique aponeurosis could join the rectus sheath with only a posterior layer, so without a double layer (anterior and posterior) as usually described. We conducted a retrospective review of abdominal CT images and the presence of the posterior insertion only could be considered as a risk factor for DRA. Conclusion Further studies with large sample size, including nulliparous, primiparous, pluriparous and men too, are necessary for identify the real prevalence
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