1. Three patients are described in whom forward dislocation of the peroneal tendons was associated with a chip fracture of the lateral malleolus and forward dislocation of the tendons through the fracture.

2. This injury differs from the more usual simple anterior dislocation of the peroneal tendons in which rupture of the superior peroneal retinaculum allows the dislocation to occur.

3. A simple operation is described which succeeded in holding reduced the dislocated tendons by suturing the fractured small chip of bone back to the lateral malleolus.