What Proportion of Patients Undergoing Bernese Periacetabular Osteotomy Experience Nonunion and What Factors are Associated with Nonunion?

摘要

The Bernese periacetabular osteotomy (PAO) is one of the most-used surgical techniques to treat symptomatic acetabular dysplasia. Although good functional and radiographic short-term and long-term outcomes have been reported, several complications after PAO have been described. One complication that may compromise clinical results is nonunion of an osteotomy. However, the exact prevalence and risk factors associated with nonunion are poorly elucidated.