The use of a triflange salvage system for catastrophic pelvic osteolysis after failed total hip arthroplasty

Matthew A Siegel; Michael J Patetta; Jason Y Chen; Diego M Barragan Echenique; Mark H Gonzalez

doi:10.1016/j.jor.2021.03.018

The use of a triflange salvage system for catastrophic pelvic osteolysis after failed total hip arthroplasty

J Orthop. 2021 Apr 2:25:16-22. doi: 10.1016/j.jor.2021.03.018. eCollection 2021 May-Jun.

Authors

Matthew A Siegel¹, Michael J Patetta¹, Jason Y Chen¹, Diego M Barragan Echenique¹, Mark H Gonzalez¹

Affiliation

¹ University of Illinois College of Medicine at Chicago, Department of Orthopaedic Surgery, USA.

Abstract

Introduction: The custom triflange acetabular implant (CTAI) has been described to address catastrophic pelvic osteolysis, but long-term outcome data is scarce.

Methods: Revision-free survivorship after revision THA with a CTAI was retrospectively reviewed in seven patients.

Results: Mean and median follow-up time were 7.39 (1.61-16.8) years and 7.50 years, respectively. Revision-free survivorship was 85.7% (6/7). One patient underwent revision for recurrent dislocations. All patients were able to ambulate at recent follow-up- 2/7 without assistance.

Conclusions: The CTAI is a viable option for patients with catastrophic pelvic osteolysis. There is a high complication rate, but the incidence of revision is low.

Keywords: Complications; Pelvic osteolysis; Revision total hip arthroplasty; THA; Triflange.