The effect of rectus reapproximation on postoperative muscle strength and core endurance in cesarean section: A prospective case-control study.

Abstract

The necessity of the reapproximation technique of the rectus abdominis muscle in the cesarean section (CS) is a controversial issue. We aimed to investigate the effect of the approximation of the rectus abdominis muscle in CS on postoperative pain intensity, muscle strength, and core endurance. Thirty-eight women whose rectus muscle was reapproximated in CS and 36 women whose muscles were not reapproximated were included in the study. All women were called in for evaluation in the postoperative period twice, in the 8th-10th and 24-26th weeks. While muscle strength was assessed by manual muscle test (MMT), core endurance was assessed by core stability tests [trunk flexion test (TFT), trunk extensor endurance test (TEET), lateral right/left bridge test (LRBT/LLBT)]. The distance between inter-rectus diastasis (IRD) and rectus abdominis muscle thickness were evaluated by ultrasonography. In the first evaluation; in the rectus muscle reapproximation (RMR) group, lower and upper IRD values were less than the control group, while muscle strength, TFT, TEET, LRBT, and LLBT times were higher (p < 0.001, <0.001, 0.014, <0.001, <0.001, 0.002, and <0.001, respectively). In the second evaluation; in the RMR group, lower and upper IRD values were lower than the control group, while upper rectus abdominis muscle thickness, TFT, TEET, and LRBT times were higher (p < 0.001, <0.001, 0.046, <0.001, 0.032, and 0.010, respectively). RMR in CS increases muscle strength and core endurance in the early postoperative period. RMR can facilitate the daily work of mother by increasing their physical fitness, especially in the early postoperative period.