Intermediate term results of revision total hip replacement with a fluted, and tapered modular stem
10.3760/cma.j.issn.0253-2352.2011.02.008
- VernacularTitle:应用锥形沟槽式股骨组配柄假体行全髋关节翻修术的中期疗效
- Author:
Yuan LUO
;
Junying SUN
;
Yongwang LI
;
Maowei YANG
- Publication Type:Journal Article
- Keywords:
Arthroplasty,replacement,hip;
Reoperation;
Prosthesis design
- From:
Chinese Journal of Orthopaedics
2011;31(2):149-153
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the midterm results of the revision total hip replacement with a fluted and tapered modular stem. Methods Nineteen patients (21 hips) underwent revision total hip arthroplasty from May 2000 to August 2005 were reviewed. There were 13 females and 6 males, with an average age of 67 years. Pre-revision diagnosis included aseptic loosening of the cups and stems associated with femoral defects (Paprosky classification) type Ⅱ 4 hips (19%), type Ⅲa 14 hips (67%), and type Ⅲb 3 hips (14%). The adopted acetabular component was SPH (Lima-Lto, Italy), and femoral component was a fluted and tapered modular stem (Lima-Lto, Italy). Clinical and radiographic evaluations were performed postoperatively. Results The mean follow-up was 7 years (range, 5-10). The Harris hip score improved from 46.2±15.2 preoperatively to 90.3±5.3 postoperatively, and maintain 92.2±3.5 at the latest follow-up. The X-ray films showed bone ingrowths fixation in 20 hips (95%) and fibrous stable fixation in 1 hip (5%). The average stem subsidence was 2.4 mm (range, 0-10 mm). There were no re-revisions of the femoral stem for any reason. Conclusion The midterm results of revision total hip replacement with a fluted and tapered modular stem in Paprosky type Ⅱ, Ⅲ a, Ⅲ b femoral defect associated aseptic loosening of the femoral stem was encouraging.
