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Incomplete seating of press-fit porous-coated acetabular components: the fate of zone 2 lucencies.
- Source :
-
The Journal of arthroplasty [J Arthroplasty] 2008 Sep; Vol. 23 (6 Suppl 1), pp. 121-6. Date of Electronic Publication: 2008 Jun 13. - Publication Year :
- 2008
-
Abstract
- The purpose of this study was to asses the fate of incomplete seating of press-fit acetabular components. From 1990 to 2002, 587 hip arthroplasties were performed using a single-design acetabular component inserted with a press-fit technique with no additional fixation. Complete radiographic follow-up at a mean 9.2 years was available for 343 cases. One hundred thirty-three acetabular components had incomplete seating on the initial postoperative radiograph and 210 cases had complete seating. Of 133 components, 125 (94%) had evidence of complete zone 2 filling. Zone 2 focal osteolysis was present in 22 patients. There were no intraoperative fractures. No acetabular components were revised for loosening. Incomplete seating of press-fit acetabular components is safe and effective in achieving initial and long-term fixation. Zone 2 lucencies when present initially are not associated with increased failure risks. Vigorous attempts to completely seat the acetabular component appear to be unwarranted.
Details
- Language :
- English
- ISSN :
- 1532-8406
- Volume :
- 23
- Issue :
- 6 Suppl 1
- Database :
- MEDLINE
- Journal :
- The Journal of arthroplasty
- Publication Type :
- Academic Journal
- Accession number :
- 18555642
- Full Text :
- https://doi.org/10.1016/j.arth.2008.04.011