Radiopelvimetry after cesarean section.

OBJECTIVE: To develop a method of identifying bony pelvic dystocia in a select group of primiparae who had had a cesarean delivery and might be at risk during a trial of labor in a subsequent pregnancy. STUDY DESIGN: Radiopelvimetry was performed on 70 postpartum primiparae after cesarean delivery for various reasons and prior to being discharged from the hospital. RESULTS: Using standard radiologic criteria, the pelvis was considered adequate in 32 patients (45.7%) and inadequate in 38 (54.2%). CONCLUSION: Postcesarean pelvimetry may be beneficial in some primiparae because it can guide the obstetrician in performing a cesarean delivery in subsequent pregnancies without an unnecessary trial of labor.