In a review of seventy-six patients with proved tuberculous arthritis in seventy-seven hip joints treated by arthrodesis, the end results were good in 52 per cent. (thirty-seven patients), fair in 22 per cent. (sixteen patients), poor in 8 per cent. (six patients), and the total mortality was 18 per cent. (thirteen patients). The result was unknown in five patients. Both general and local therapy, designed to improve the general health and to furnish complete rest to the hip, is recommended for considerable periods both before and after operation. This study supports the contention that the arthrodesis should be done at an optimum time in the course of the disease. The seriousness of mixed tuberculous and pyogenic infection of the hip is stressed by the incidence of this complication in the poor results and deaths. The age of the patient, the duration of preoperative care, sinuses, abscesses, changes as shown by roentgenograms, type of arthrodesis, and pulmonary tuberculosis influenced the end results in this series of cases.