[Voluntary dislocation of the hip. Report of two cases].

Case 1: We present a 5 year-old female patient with ligament laxity who started on August 1992 at 4 years of age when doing voluntary medial rotation and adduction of the hip, she presents with a posterior dislocation of the hip joint and voluntary reduction, with no more clinical data. Later on she realizes voluntary dislocation of the hip from three to five times a week, without pain or any clinical findings. She was evaluated by the Genetics Department who isn't able to integrate a syndrome. X-ray findings on the AP view show a right hip with a posterior dislocation, and a normal left hip. Case 2: We present a 7 year-old male patient who started on August 2001 when he suffered a fall from his own height over his right side, and presented an asymptomatic anterior dislocation of the right hip. From this moment on he presented multiple events of involuntary dislocation of the right hip. X-ray findings on the AP view show an anterior dislocation of the right hip. A Ponseti cast was used over night and the patients were educated to not dislocate the hip. They received yearly follow up until August 2004, with no more dislocations of the hip joint. The conservative treatment plan was effective as a definite treatment.