Evaluation and management of chronic pelvic discontinuity in revision total hip arthroplasty / 中华骨科杂志

ABSTRACT

Revision total hip arthroplasty is becoming more common due to an increasing number of primary total hip arthroplasty procedures being performed annually. Chronic pelvic discontinuity is an important and difficult complication after primary total hip arthroplasty. It is estimated that chronic pelvic discontinuity account for 1%-5% of all acetabular revisions. Pelvic discontinuity occurs mostly in female patients or patients with a history of prior pelvic radiation or rheumatoid arthritis. There are three following crucial factors in regards to achieving satisfied outcomes in treating pelvic discontinuity, the amount of bone stock remaining, biologic in-growth potential and the healing potential of the discontinuity. Treatment approaches include cage reconstruction with bulk acetabular allograft, custom triflange acetabular component, a cup-cage construct, jumbo acetabular cup with porous metal augments, and acetabular distraction with a porous tantalum shell with or without modular porous augments. The present course reported the classification, evaluation, reconstruction options and outcomes of chronic pelvic discontinuity.