[Paresis of nervus peroneus after immobilization with range of motion walker].

It is well known that cast immobilization can cause pressure on the common peroneal nerve. In this case a 64-year-old female patient had a fracture of the distal fibula (SU2, according to Lauge Hansens classification of angle fractures). This avulsion was conservatively treated and immobilized in a flexible cast. Unfortunately, the cast was too high, the metal plates inside it caused pressure on the common peroneal nerve and the patient sustained a peroneal palsy.