Stress fracture of the peroneal bone secondary to a complex tic.

Complex tics have been widely reported in literature, especially in children with Tourette syndrome. We describe the case of a fracture line of both peroneal bones in a 13-year-old child with Tourette syndrome and obsessive-compulsive disorder. He was admitted to our hospital because of pain in his legs. Radiography showed fractures of both peroneal bones, more marked on the left side. The clinical history was strongly suggestive of obsessive-compulsive disorder and Tourette syndrome with associated simple and complex motor tics. Radiographic follow-up showed spontaneous resolution of the fractures.