Association between periacetabular osteotomy and hip dysplasia among relatives: a cross-sectional study.

Introduction: Previous studies indicate a familial predisposition for developmental dysplasia of the hip (DDH), especially among first-degree relatives. This study investigated the association between unilateral or bilateral periacetabular osteotomy (PAO), family history of DDH and the degree of relationship with relatives with DDH.

Material And Methods: This cross-sectional study consisted of 815 consecutive patients undergoing PAO from 1998 to 2016.