Fig. 3From: Femoroacetabular impingement is more common in military veterans with end-stage hip osteoarthritis than civilian patients: a retrospective case control studyThe figure below contains a side-by-side comparison of preoperative anteroposterior pelvis radiographs used in this analysis. The radiograph on the left a demonstrates a normal lateral center-edge angle (LCEA) of Wiberg (< 40°), and the radiograph on the right b demonstrates a pincer deformity (LCEA ≥40°). Military veterans had significantly greater LCEAs compared with those of civilians using an independent t-test (P = 0.04). Military veterans also demonstrated a significantly greater prevalence of pincer deformities when compared with civilians using Fisher’s exact tests (P = 0.025)Back to article page