Excellent long-term results of the Müller acetabular reinforcement ring in primary total hip arthroplasty.
(2016) In Acta Orthopaedica 87.- Abstract
- Background and purpose - The original Müller acetabular reinforcement ring (ARR) shows favorable medium-term results for acetabular reconstruction in total hip arthroplasty, where it is used when the acetabular bone stock is deficient. However, there are no data regarding long-term survival of the device. We therefore investigated long-term survival and analyzed radiological modes of failure. Patients and methods - Between 1984 and 2002, 321 consecutive primary arthroplasties using an ARR were performed in 291 patients. The mean follow-up time was 11 (0-25) years, and 24 hips were lost to follow-up. For survival analysis, we investigated 321 hips and the end of the follow-up was the date of revision, date of death, or the last patient... (More)
- Background and purpose - The original Müller acetabular reinforcement ring (ARR) shows favorable medium-term results for acetabular reconstruction in total hip arthroplasty, where it is used when the acetabular bone stock is deficient. However, there are no data regarding long-term survival of the device. We therefore investigated long-term survival and analyzed radiological modes of failure. Patients and methods - Between 1984 and 2002, 321 consecutive primary arthroplasties using an ARR were performed in 291 patients. The mean follow-up time was 11 (0-25) years, and 24 hips were lost to follow-up. For survival analysis, we investigated 321 hips and the end of the follow-up was the date of revision, date of death, or the last patient contact date with implant still in situ. Radiological assessment was performed for 160 hips with a minimum of 10 years of follow-up and with radiographs of sufficient quality. It included evaluation of osteolysis, migration, and loosening. Results - 12 ARR THAs were revised: 1 isolated ARR revision for aseptic loosening, 4 revisions of the ARR and the stem for aseptic loosening, 6 for infection, and 1 for recurrent dislocation. The cumulative revision rate for all components, for any reason, at 20 years was 15% (95% CI: 10-22), while for the ARR only it was 7% (95% CI: 4-12) for any reason and 3.4% (95% CI: 1-9) for aseptic loosening. 21 (13%) of 160 ARR THAs examined had radiological changes: 7 had osteolysis but were not loose, and 14 were radiologically loose but were not painful and not revised. Interpretation - Our data suggest that the long-term survival of the ARR is excellent. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8152132
- author
- Sirka, Aurimas ; Clauss, Martin ; Tarasevicius, Sarunas ; Wingstrand, Hans LU ; Stucinskas, Justinas ; Robertsson, Otto LU ; Emil Ochsner, Peter and Ilchmann, Thomas
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Acta Orthopaedica
- volume
- 87
- publisher
- Taylor & Francis
- external identifiers
-
- pmid:26471881
- scopus:84945242650
- wos:000372447400003
- pmid:26471881
- ISSN
- 1745-3682
- DOI
- 10.3109/17453674.2015.1103607
- language
- English
- LU publication?
- yes
- id
- 2c470b7d-1fd7-4425-9f6d-65a7c5d6fc73 (old id 8152132)
- alternative location
- http://www.ncbi.nlm.nih.gov/pubmed/26471881?dopt=Abstract
- date added to LUP
- 2016-04-01 13:18:50
- date last changed
- 2022-02-19 04:43:45
@article{2c470b7d-1fd7-4425-9f6d-65a7c5d6fc73, abstract = {{Background and purpose - The original Müller acetabular reinforcement ring (ARR) shows favorable medium-term results for acetabular reconstruction in total hip arthroplasty, where it is used when the acetabular bone stock is deficient. However, there are no data regarding long-term survival of the device. We therefore investigated long-term survival and analyzed radiological modes of failure. Patients and methods - Between 1984 and 2002, 321 consecutive primary arthroplasties using an ARR were performed in 291 patients. The mean follow-up time was 11 (0-25) years, and 24 hips were lost to follow-up. For survival analysis, we investigated 321 hips and the end of the follow-up was the date of revision, date of death, or the last patient contact date with implant still in situ. Radiological assessment was performed for 160 hips with a minimum of 10 years of follow-up and with radiographs of sufficient quality. It included evaluation of osteolysis, migration, and loosening. Results - 12 ARR THAs were revised: 1 isolated ARR revision for aseptic loosening, 4 revisions of the ARR and the stem for aseptic loosening, 6 for infection, and 1 for recurrent dislocation. The cumulative revision rate for all components, for any reason, at 20 years was 15% (95% CI: 10-22), while for the ARR only it was 7% (95% CI: 4-12) for any reason and 3.4% (95% CI: 1-9) for aseptic loosening. 21 (13%) of 160 ARR THAs examined had radiological changes: 7 had osteolysis but were not loose, and 14 were radiologically loose but were not painful and not revised. Interpretation - Our data suggest that the long-term survival of the ARR is excellent.}}, author = {{Sirka, Aurimas and Clauss, Martin and Tarasevicius, Sarunas and Wingstrand, Hans and Stucinskas, Justinas and Robertsson, Otto and Emil Ochsner, Peter and Ilchmann, Thomas}}, issn = {{1745-3682}}, language = {{eng}}, publisher = {{Taylor & Francis}}, series = {{Acta Orthopaedica}}, title = {{Excellent long-term results of the Müller acetabular reinforcement ring in primary total hip arthroplasty.}}, url = {{https://lup.lub.lu.se/search/files/3296661/8840978.pdf}}, doi = {{10.3109/17453674.2015.1103607}}, volume = {{87}}, year = {{2016}}, }