[Results of conservative treatment of bony palmar plate avulsion of the middle joint (type I and type II according to Hintringer and Leixnering)].

At the Unfallkrankenhaus Lorenz Böhler, avulsion fractures of the palmar plate of the proximal interphalangeal (PIP) joint type I the and II are treated by immobilisation in a PIP-Stack splint. We use 147 the classification of Hintringer and Leixnering (1991). The were immobilised for three weeks. For follow-up, 102 patients with 106 injured fingers from an overall of 147 patients treated by this method were investigated personally. 27 patients who could not attend, were evaluated by telephone. 22(17 to 25) months after the accident results were subjectively and objectively very good in 80% of the patients. In none of the patients extension was limited. In 18 patients, flexion was limited 5 to 10 degrees, in two patients 15 to 20 degrees. No patient had a limitation of flexion of more than 20 degrees.