Sexual Function in Women at 6 and 12 Months After Obstetric Anal Sphincter Injury: Is Pelvic Floor Physical Therapy Associated With Improved Outcomes?

Abstract

Women with obstetric anal sphincter injury (OASI) are at increased risk of postpartum sexual dysfunction. Risk persists beyond 3 years after perineal trauma in up to half of patients with OASI. The aims of this study were to determine if postpartum pelvic floor physical therapy (PFPT) is associated with improved sexual function after vaginal delivery with OASI and to describe sexual function in patients with OASI at 6 and 12 months postpartum. This is a retrospective cohort study of patients with OASI. Women were grouped according to PFPT attendance. The Postpartum Pelvic Floor and Birth Questionnaire (PPFBQ), which compares current sexual function to baseline prepregnancy sexual function, and the Female Sexual Function Index (FSFI) were administered at 6 and 12 months, respectively, to evaluate postpartum sexual function. Two hundred women were included. Sixty-four (32%) women attended PFPT; 136 (68%) did not attend PFPT. Patients reported worse-than-baseline sexual function at 6 months postpartum in the PPFBQ sexual activity domain, but the PFPT group had lower median score than the non-PFPT group (2.3 [2.0, 2.8] vs 2.7 [2.1, 3.1], P = 0.034), with scores <3.0 indicating worse-than-baseline functioning. The FSFI composite scores were similar between groups and showed 80.7% of the patients with OASI meeting the criteria for female sexual dysfunction at 12 months postpartum. Attendance of PFPT was not significantly associated with composite FSFI scores and most domains of PPFBQ. Attendance of PFPT did not significantly impact overall sexual function in OASI patients at 6 and 12 months postpartum. Sexual function is complex and may be more effectively addressed in the postpartum period using a multidimensional approach.