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Objectives: The aims of this work were to assess functional and radiographic results of primary total hip arthroplasty and to determine the profile of patients and the different indications. Materials and Methods: We conducted a retrospective study of 56 patients operated for total hip arthroplasty at Afagnan hospital (Togo), from first January 2007 to 31 December 2016. The clinical evaluation was made with Devane activity score and Postel Merle D’Aubigne (PMA) score. Radiologicaly, the analysis focused on the inclination of the cup, and the osseointegration of implants. Results: 56 patients underwent total hip arthroplasty with dual-mobility cups in which two bilateral. The average passing time of follow-up was 6, 5 years [range1-9 yrs.]. The mean age was 42.69 years (20-77). The main indications were: aseptic osteonecrosis of hip 28 cases (48.27%), sequelae of trauma 11 cases (18.96%), hip dysplasia 4 cases (06.90%), and primitive degenerative arthritis 12 cases (20.69%). The PMA score increased from 9.1 (2-15) preoperatively to 15.8 (13-18) at the last follow. The average of the inclination cups was 42 degrees. No episode of luxation was watched for the arthroplasty with dual-mobility cup. The survival rate was 100%. Conclusion: Total hip arthroplasty were mainly impacted with a dual-mobility cup at the last follow; the overall results are satisfactory with PMA score of 15.8. Our study confirms the medium-term reliability of dual -mobility cup with 100% survival rate. These results must be tempered because of the occurrence of long-term complications related to the risk of dual mobility among young people.

Mid-term results of total hip Arthroplasty with dual-mobility in a country with low-income: A review of 58 cases