[Accident causes and prevention of injuries in Enduro-motorbike sport].

365 participants of the 64. Enduro-World Championship in 1989 reported 232 injuries within a 10-years-period of motorbike driving. The knee was most frequent (21.5 pc., mainly ligament ruptures) injured, followed by fracture of the clavicle (18.5 pc.), hand (15.5 pc.) and damages of the shoulder. Fractures are very common (55.5 pc.) in motorbike sports. Injuries often were produced by collisions with other motorbikes or trees. Driving mistakes, jumps, slipping wheels and overturn were other causes for an accident. During the championship 13 accidents were registered. In a clinical examination defects or alterations of the joints and bones were observed at 91 drivers. Important is the incidence of two malign tumours of the testicles. Preventive measures against accidents are discussed.