A stady was made on 13 cases, 14 joints—11 knees, 2 elbows and one ankle—, of purulent arthritis of the corticosteroid hormones.
There was no x-ray changes in 5 joints and obvious bone and cartilage destruction in 9 joints.
Under the administration of large dosis of antibiotics, the synovectomy and debridement were performed.
All 5 joints which showed no postoperative improvement of local signs and E. S. R. were diagnosed as the tuberculous arthritis by histological investigotion.
All 13 joints out of 14 regained fairly good joint motion and clinical cure.
One tuberculous joint undewent secondary arthrodesis.
