Résumé
Involvement of the hip occurs in 15 to 20% of the rheumatoid arthritis. It engages the functional prognosis. Our objective was to specify the frequency of coxitis among our patients, the ground of its which has occurred and its clinical and radiological characteristics. We conducted a cross study including seventy patients with rheumatoid arthritis according to American college of rheumatology criteria. All patients had a clinical exam with measurement of index of evolutivity and of severity from RA, and radiographs of pelvis. We included 57 women and 13 men with rheumatoid arthritis, the mean age was 35,38 +/- 11,21 year, and mean duration of rheumatoid arthritis was of 11,82 +/- 6,9 years. The diagnosis delay was 2 years. Eleven cases of coxites were noted including 7 women and 4 men. The mean duration of the coxitis was 3,66 +/- 4,24 years with a diagnosis delay of 7,25 +/- 7,75 years. Involvement was bilateral in seven cases [63,63%]. The radiological analysis had objectivised a pinching in 11 cases, erosions in seven cases, an acetabuli protrusion in 4 cases and a secondary osteoarthritis in six cases. Only 2 patients had hip joint replacements. In our rheumatoid arthritis the coxitis is common, correlated with disease duration, delay diagnosis and severity of rheumatoid arthritis. It is often bilateral. It can be very invalidating, justifying an early and correct treatment