Objectives: The assessment of the radio clinical results of sixty one total hip arthroplasties was performed among young and active patients, with follow-up for ankylosing spondylitis, in order to evaluate the effect of surgery on the quality of life of these patients. Methods: For the functional improvement of the patients, we relied on the scores of Devane, Harris and that of Postel Merle d’Aubeigné. The radiological analysis was based on the coxometry. Results: The study confirms the notable functional gain and consequently the improvement of the quality of life of the patients. However, the longevity of the implants remains difficult to envisage due to our limited and insufficient hindsight. Conclusion: The total hip arthroplasty transforms the life of the young patients’ carriers of the disabling coxitis on the stiffening spondylarthritis, by getting them the laziness and the mobility wished for.