Assessment and management of periacetabular aneurysmal bone cysts-a series of four cases.

Beyer, Reagan S H; Steiner, Quinn; Hennessy, David W; Rosas, Humberto G; Goodspeed, David C; Spiker, Andrea M · J Hip Preserv Surg · 2025

case_series · Level IV

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Abstract

Aneurysmal bone cysts (ABCs) in the periacetabular region can be challenging to treat because they create unique problems, given their proximity to articular cartilage and a significant weight bearing surface. This case series details the assessment and treatment of four periacetabular ABCs with a review of pertinent current literature. Treatment approaches used include curettage with 6% phenol chemical adjuvant, type III hemipelvectomy, serial image-guided sclerotherapy injections, and in one case, an exostotic lesion was treated with hip arthroscopy.

Anatomy