RT Journal Article T1 Pelvic floor rehabilitation in patients with levator ani muscle avulsion A1 Garcia-Mejido, J. A. A1 Suarez-Serrano, C. A1 Medrano-Sanchez, E. M. A1 Bonomi Barby, M. J. A1 Armijo Sanchez, A. A1 Sainz, J. A. K1 Pelvic floor muscle training K1 Levator ani muscle avulsion K1 Postpartum physiotherapy K1 Risk-factors K1 Women K1 Delivery K1 Prolapse K1 Defects AB Objective: To determine if physiotherapy treatment applied to patients with levator ani muscle (LAM) avulsion identified after a vaginal delivery, reduces the LAM hiatus area. Material and Methods: A prospective observational study of 52 nulliparous (26 in the experimental and 26 in the control group). We included patients with LAM avulsion, diagnosed by 3-4D/transperineal ultrasound performed 3 months after delivery. Patients in the experimental group underwent a program of pelvic floor exercises, assisted by biofeedback and lumbopelvic stabilization exercises. Assessment of LAM was carried out at 6 and 9 months postpartum, using 3-4D/transperineal ultrasound, and taking the following measurements: levator hiatus area at rest, during Valsalva and at maximum contraction; LAM area, and thickness of right and left LAM. Results: Patients in the experimental group presented a reduction in the levator hiatus area at rest (17.0, 15.7, 15.9 cm(2)), during Valsalva (23.0, 20.8, 19.9 cm(2)) and at maximum contraction (15.6, 14.4 and 13.5 cm(2)), in comparison with patients in the control group, who presented a levator hiatus area at rest of 17.4, 17.2 and 16.8 cm(2), during Valsalva of 21.0, 20.8 and 20.3 cm(2), and at maximum contraction of 16.6, 16.1 and 15.6 cm(2), at 1, 6 and 9 months postpartum respectively (P PB Imr press SN 0390-6663 YR 2020 FD 2020-06-15 LK https://hdl.handle.net/10668/27154 UL https://hdl.handle.net/10668/27154 LA en DS RISalud RD Apr 8, 2025