A normative development concerning the mechanical resistance tests of the the femoral stems led to contraindicate, in September 2014, to implant Meije Duo â„¢ femoral stems size 1 or 2 in patients weighing more than 60 kg due to an assumed risk of femoral stem breakage. This contraindication is based on standardized mechanical tests which may have not taken into account the changes in patient weight that may occur after the intervention. To date, investigators have not been aware of any Meije Duo â„¢ size 1/2 brakeage in our patients implanted with this type of prosthesis regardless of their weights before 2014. However, it is possible that some of them have had a prostheses failure and consulted another hospital. In the absence of a clinical study on this problem, investigators decided to set up a health care assessment study collecting retrospective and prospective information from our patients.
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Pourcentage of participants who had stem (Meije DuoTM size 1 or 2) breakage occured between implantation and the study follow-up call phone.
Timeframe: Up to 4 weeks, starting from the call phone (patient consent)