Fractures of the phalanges: results of internal fixation using 1.5mm and 2mm A. O. screws.

Thirty-six patients were treated for 38 phalangeal fractures using 1.5 mm and 2 mm A. O. screws. Plates were not used in the fingers. Oblique fractures of the condyles, shafts or bases of the proximal or middle phalanges were treated by internal fixation because of instability, displacement or rotation. 40% of fractures had associated skin wounds, were comminuted or had damage to the extensor mechanism. The mean duration of post-operative immobilization was 9 days and the mean time off work was 6 weeks. Total active movement in the involved ray was 220 degrees or greater in 24 cases, 180 degrees to 215 degrees in eight cases, and less than 180 degrees in two patients at follow up. The patients were reviewed between three and 54 months after treatment and the mean duration of follow up was 24 months. The most frequent complication was 10 degrees to 30 degrees of flexion deformity of the proximal interphalangeal joint after internal fixation of condylar fractures. Results were satisfactory in 90% of cases.