PATHOLOGICAL DISLOCATION OF THE HIP IN VONRECKLINGHAUSEN DISEASE - A REPORT OF 2 CASES

We report two cases of von Recklinghausen's disease in which hip dislo cations occurred gradually without trauma. In one case, the right hip joint dislocated at the age of 8 years, and in another case, the left hip dislocated at 2 years and the right hip at 3 years. Each case was accompanied by bone changes around the affected hips, vertebral deform ity, and spinal tumor. One case had hemihypertrophy of the involved lo wer extremity. Both structural changes around the hip joint and paraly sis may have resulted in the hip dislocation.