Acetabular fractures in children and adolescents.

A retrospective study of 23 acetabular fractures in patients up to 17 years of age is presented, with an average follow-up of eight years. Good or excellent functional results were achieved in 21 patients; radiographic results were good or excellent in 16. Conservative treatment gave consistently good results in fractures with minimal initial displacement, stable posterior fracture-dislocations and Salter-Harris type 1 and 2 triradiate cartilage fractures. Less favourable results were seen in type 5 triradiate cartilage fractures and in comminuted fractures, but operation was no better. Unstable posterior fracture-dislocations and irreducible central fracture-dislocations need operative treatment but the results may still be unsatisfactory.