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Operative fixation of acetabular fractures in the pregnant patient
Scott E Porter1, George V Russell, Zhen Qin
1Department of Orthopaedic Surgery, University of Mississippi Medical Center, Jackson, MS 39216, USA. sporter@orthopedics.umsmed.edu
Objective:
To describe in utero radiation exposures in pregnant patients undergoing acetabular fracture repair.
Design:
Retrospective case series.
Setting:
University-affiliated regional trauma center.
Patient/Participants:
Eight pregnant patients with acetabular fractures treated over a 6-year period. There were an additional 518 acetabular fractures in nonpregnant patients treated during the same time period.
Intervention:
Open reduction and internal fixation of the acetabulum fracture.
Outcome Measurements:
None. This is a descriptive series reporting fetal radiation doses, fetal fluoroscopy exposure times, and fetal viability after treatment.
Results:
The gestational age of the fetuses at presentation ranged from 5 to 26 weeks. Infant delivery averaged 27 weeks from the time of surgery and all pregnancies reached 36 weeks. Apgar scores were normal each child including 1 twin delivery. There were 4 posterior wall fractures, 3 transverse or posterior wall fractures, and 1 posterior column fracture. Intraoperative pelvic fluoroscopy averaged 39 seconds. There were no operative complications and fracture reductions were anatomic in 7 patients. Computed tomography scan of the pelvis conferred the greatest exposure risk to the fetus and fluoroscopy conferred the least. In each case that required a computed tomography scan of the pelvis, the calculated radiation exposure dose to the fetus was greater than 5 cGy.
Conclusions:
The results of this study demonstrate that with a team approach and the judicious use of radiographic imaging during the surgical care of a displaced acetabular fracture in the pregnant patient, minimal risk to the baby can be achieved in pursuit of acceptable articular reductions.
