Revision Total Hip Arthroplasty Using Tantalum Augment in Patients with Paprosky III or IV Acetabular Bone Defects: A Minimum 2-year Follow Up Study.
- Author:
Min JEONG
1
;
Hyung Joo KIM
;
Seung Jae LIM
;
Young Wan MOON
;
Yoon Soo PARK
Author Information
- Publication Type:Original Article
- Keywords: Revision total hip arthroplasty; Acetabular bone defect; Tantalum augment
- MeSH: Acetabulum*; Arthroplasty, Replacement, Hip*; Debridement; Dislocations; Female; Follow-Up Studies*; Hip; Humans; Male; Paralysis; Retrospective Studies; Tantalum*
- From:Hip & Pelvis 2016;28(2):98-103
- CountryRepublic of Korea
- Language:English
- Abstract: PURPOSE: The purpose of this study is to report the short-term outcomes of revision total hip arthroplasty (THA) using tantalum augments in patients with severe acetabular bone defects. MATERIALS AND METHODS: We retrospectively analyzed 15 revision THAs performed in 15 patients using tantalum augments between June 2010 and December 2013. Acetabular bone defects were Paprosky type IIIA in 7 hips, type IIIB in 7, and type IV in 1. The causes of revision surgery were aseptic loosening in 12 hips and deep infection in 3. Revisions were first in 1 hip, second in 3, and third in 11. Six patients were male and 9 female with a mean age of 59 years (range, 48-75 years). Mean follow-up was 29 months (range, 24-48 months). RESULTS: Mean Harris hip score was improved from 34 points (range, 12-54 points) preoperatively to 84 points (range, 38-90 points) at final follow-up. On the final follow-up radiographs, there were 12 hips (80.0%) with stable fixation of the acetabular cup, 2 (13.3%) with secondary stability after mild acetabular protrusion, and 1 (6.7%) with radiolucency around the acetabular cup without mechanical symptoms. Complications included one patient with acute hematogenous infection managed by surgical debridement and long-term antibiotic therapy. There were no cases with nerve palsy or dislocation during the follow-up period. CONCLUSION: The present study showed satisfactory clinical and radiographic outcomes of revision THA using tantalum augments due to severe acetabular bone defects of Paprosky type III or IV at a minimum follow-up of 2 years.
