Aims: The aim of this study was to describe the prepartum anatomy of the abdominal wall in a cohort of nulliparous women, for use as a reference for management of patients with postpartum abdominal wall insufficiency with or without rectus diastasis.Materials and Methods: Seventy-one women were examined with ultrasonography of the abdominal wall. The inter-recti distance (IRD), anatomical variations of the linea semilunaris, and the oblique muscles were assessed. The waistline was measured during activation and relaxation of the abdominal core. Participant characteristics were registered. Questionnaires regarding habitual physical activity (Baecke), low back pain (Oswestry), physical functioning (DRI), urinary incontinence (UDI-6 and IIQ-7), and quality-of-life (SF-36) were answered.Results: Mean age was 30.5 years (range 19–50 years) and mean BMI 23.5 kg/m2 (range 18–37). Ultrasonography showed a mean IRD of 10 mm (range 3–24) at the superior border of the umbilicus, 9 mm (4–20) 3 cm above the umbilicus, and 2 mm (−5–10) 2 cm below the umbilicus. The mean thickness of the linea alba was 3 mm (1.5–5) and mean distances between the lateral edge of the rectus muscle and the external, internal, and transverse oblique muscles were 12 mm (−10–28), 1 mm (−14–13) and 15 mm (−14–32) at umbilicus level. Responses to the DRI, UDI-6, IIQ-7 and Oswestry questionnaires showed generally lower scores than the normal population whereas Baecke and SF-36 scores were similar.Conclusion: This study provides baseline data on normal abdominal wall anatomy in a healthy nulliparous female cohort, as well as levels of activity, physical function, disability, and quality-of-life.
Background Rectus diastasis is a common sequela of pregnancy and is associated with functional disabilities such as back pain, abdominal core instability, abdominal muscle weakness, urinary incontinence, and psychological issues such as a negative body image. The aim of this study was to evaluate the effect of the TOR concept (training, operation, and rehabilitation), a novel concept for treating abdominal wall insufficiency combined with rectus diastasis, after pregnancy. TOR consists of preoperative evaluation of symptoms and custom-designed abdominal core training, tailored rectus diastasis repair, and individual progressive postoperative rehabilitation. Methods A consecutive series of women diagnosed with rectus diastasis and core dysfunction resistant to training, underwent plication of the linea alba between 2018 and 2020. After surgery, all patients participated in an individually designed rehabilitation programme over a 4-month interval. Physical function was recorded before surgery and 1 year after surgery using the disability rating index questionnaire. Symptoms associated with core instability were recorded before and 1 year after surgery. Quality of life was assessed using the SF-36. The abdominal wall anatomy was assessed with ultrasound before and 1 year after surgery. Results Seventy-one women were included and all attended 1-year follow-up. Response rate was 81.7 per cent (58) for the disability rating index, and 59.2 per cent (42) for SF-36. Self-reported physical function (disability rating index) improved in 54 of 58 patients (93.1 per cent), with a median score reduction of 91.3 per cent. Core instability symptoms decreased significantly. All SF-36 subscales improved significantly compared with preoperative scores, reaching levels similar to or higher than the normative Swedish female population. No recurrence of rectus diastasis was seen at the 1-year follow-up. Conclusions Surgical reconstruction within the TOR concept resulted in significant improvements in physical function and quality of life as well as a significant decrease in symptoms of core instability.
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