Metal-on-metal hip resurfacing (MoMHR) has been proposed as an effective surgical treatment for young and active patients with symptomatic hip disease. Recently, good clinical and radiographic outcomes have been reported by the designer surgeons at a 15.3 years follow-up; however, results at long follow-up by non-designer surgeons are less satisfactory. The aim of the study was to investigate if MoMHR can produce satisfactory clinical and radiographic results and if survival rate can be high even if the procedure is performed by non-designer surgeons.
All patients were assessed about implant survival. All patients completed an Oxford Hip Score (OHS), Harris Hip Score (HHS) and a University of California Los Angeles (UCLA) activity score preoperatively, at 1 year and at last available follow-up; at this time, a standard anteroposterior weight-bearing radiograph was performed.
The survival rate with revision for any reason is 96%, similar to those obtained by designer surgeons. All the clinical scores improved over time: according to the OHS the survivors are asymptomatic and according to the UCLA maintain a high level of function. 6 remodellings of the femoral neck and 2 heterotopic bone formations were seen, but they were asymptomatic.
As designer surgeons have already shown, MoMHR can provide in active patients a durable treatment for hip arthritis, with low risk of revision and good results at 10 years follow-up, even if the procedure is performed by non-designer surgeons.
Hip Int 2017; 27(2): 134 - 139
Article Type: ORIGINAL RESEARCH ARTICLE
AuthorsAntonio Moroni, Maria Teresa Miscione, Riccardo Orsini, Giovanni Micera, Salvatore Mosca, Fabrizio Sinapi, Laura De Girolamo, Giuseppe Banfi
- • Accepted on 20/05/2016
- • Available online on 21/03/2017
- • Published in print on 31/03/2017
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- Moroni, Antonio [PubMed] [Google Scholar] 1, * Corresponding Author (firstname.lastname@example.org)
- Miscione, Maria Teresa [PubMed] [Google Scholar] 1
- Orsini, Riccardo [PubMed] [Google Scholar] 1
- Micera, Giovanni [PubMed] [Google Scholar] 1
- Mosca, Salvatore [PubMed] [Google Scholar] 1
- Sinapi, Fabrizio [PubMed] [Google Scholar] 1
- De Girolamo, Laura [PubMed] [Google Scholar] 2
- Banfi, Giuseppe [PubMed] [Google Scholar] 1, 2
Vita-Salute San Raffaele University, Milan - Italy
IRCCS (Institutes for Research, Hospitalisation and Health Care) Galeazzi, Milan - Italy