Abstract
We investigated the change in the difficulties in carrying out activities of daily living (ADL) before and after lengthening of the lower limbs in four patients with achondroplasia and hypochondroplasia. We examined these patients using our ADL evaluation form referred to that of the New York University Medical Center and the Japanese Association of Rehabilitation Medicine. And we also evaluated the degree of satisfaction for the operation using a visual analoge scale. Their preoperative heights were all less than 130cm. After operation, the increases in height were from 6.8cm to 15.5cm. These patients had a significant improvement of their difficulties existing preoperatively due to the shortening of the lower limbs and short stature. And all four patients were satisfied with the conditions after surgery. On the other hand, there were three cases who experienced new subtle difficulties in putting on their socks, tying the shoelaces, manicuring their nails, and one of the three had a shight difficulty in getting on all fours. The results of this study suggested that lengthening of the lower limbs may be an effective strategy for patients with achondroplasia and hypochondroplasia less than 130cm height in order to improve their various ADL difficulties.
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