Total Hip Arthroplasty Using Cementless Grit-Blasted Femoral Component A Minimum 10-Year Follow-Up Study
- Authors
- Hwang, Kyu-Tae; Kim, Young-Ho; Kim, Yee-Suk; Choi, Il-Yong
- Issue Date
- Sep-2012
- Publisher
- CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
- Keywords
- influencing factor; outcome; CLS stem; total hip arthroplasty
- Citation
- JOURNAL OF ARTHROPLASTY, v.27, no.8, pp.1554 - 1561
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ARTHROPLASTY
- Volume
- 27
- Number
- 8
- Start Page
- 1554
- End Page
- 1561
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/164816
- DOI
- 10.1016/j.arth.2012.02.005
- ISSN
- 0883-5403
- Abstract
- The grit-blasted cementless Spotorno (CLS) stem, which has excellent survival rates up to 10 years, is widely used in total hip arthroplasty (THA). We investigated the survivorships of CLS stems in THA at a minimum follow-up of 10 years and sought to identify factors that influence outcomes. A total of 227 hips of 191 patients who underwent cementless THA with a CLS stem were retrospectively reviewed at a mean follow-up of 12.3 years. All patients were evaluated clinically and radiographically according to implant type and surgery-related and patient-related factors. Survivorship was 97.2% when femoral revision for any reason was defined as the end point. Femoral revisions were performed in 3 hips because of periprosthetic fractures. Survivorship for all hips, using revision for any reason as the end point, was 92.6%. Two metal-on-metal THAs were revised because of aseptic loosening or osteolysis around the cup. No significant differences were evident for type of stem, type of bearing surface, stem alignment, or patient-related factors. However, a canal fill index of 80% or less was found to affect cortical remodeling, subsidence, and a change in stem position of 5 degrees or more, which indicates that care must be taken not to undersize stems. In addition, in view of the revisions performed, bearing surfaces appear to importantly influence THA survivorship.
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