Long-term results of the threaded Mecron cup in primary total hip arthroplasty: A 15-20-year follow-up study
In the 1970s, high failure rates of cemented acetabular components, especially in young patients, in the middle- and long-term prompted a search for alternatives. The Mecring was one of the most popular first generation uncemented, threaded cups widely used in the 1980s for arthroplasty of the hip....
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| Main Authors: | , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2010
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| In: |
International orthopaedics
Year: 2010, Volume: 34, Issue: 8, Pages: 1093-1098 |
| ISSN: | 1432-5195 |
| DOI: | 10.1007/s00264-009-0843-9 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s00264-009-0843-9
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| Author Notes: | Michael Clarius, Alexander W. Jung, Marcus R. Streit, Christian Merle, Patric Raiss, Peter R. Aldinger |
| Summary: | In the 1970s, high failure rates of cemented acetabular components, especially in young patients, in the middle- and long-term prompted a search for alternatives. The Mecring was one of the most popular first generation uncemented, threaded cups widely used in the 1980s for arthroplasty of the hip. First generation threaded cups commonly had smooth surface treatment and showed unacceptably high failure rates in the mid-term. In a consecutive series of 209 patients, 221 threaded uncemented acetabular cups with smooth surface treatment (Mecring) had been implanted in combination with one type of uncemented stem. Patients were followed up clinically and radiographically. The mean time of follow-up was 17 (range 15-20) years. In 91 (41%) hips the acetabular component had been revised or was awaiting revision: two hips for infection and 84 (38%) for aseptic loosening. Five hips were awaiting revision. The survival rate for all revisions including hips awaiting revision was 49% (95% CI: 41-57%) at 17 years. These results support the view that smooth, threaded acetabular components do not provide satisfactory long-term fixation and should be abandoned. Patients with these components must be closely monitored as the failure rate remains high in the long-term. |
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| Item Description: | Veröffentlicht am 24. Juli 2009 Gesehen am 27.04.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1432-5195 |
| DOI: | 10.1007/s00264-009-0843-9 |