Pelvic Reconstruction for Complex Bone Defects in Revision Total Hip Arthroplasty.

Pelvic bone loss in the setting of total hip arthroplasty (THA) creates a challenge for reconstructing the acetabulum during revision THA. The complexity of managing acetabular bone loss lies in its highly variable presentation, ranging from minor osteolytic defects to extensive segmental and cavitary deficiencies. This article will highlight treatment options for complex pelvic defects (Paprosky 3A/3B) and frequently associated pathology, such as instability and infection.