[Habitual peroneal tendon dislocation].

Between 1945 and 1985 a total of 54 patients were treated for recurrent dislocation of the peroneal tendon. 30 cases were operated on employing five various surgical techniques. 31 patients denied trauma as being the cause, which therefore made constitutional weakness of the retention apparatus of the peroneal tendon responsible. The pathogenesis is described in detail. The period of follow-up is 13.2 years (2-40). 80% of the operated patients became absolutely trouble-free. Only in one single case did a relapse occur.