Hip arthrodesis in adolescents using external fixation

Between 1994 and 1998, seven adolescents underwent hip arthrodesis with the use of an external fixator. Mean time of follow-up was 24.0 months after s urgery. The duration of fixation and time to fusion were 6.6 months (range, 5-9.5 months) and 8.0 months (range, 5.2-15 months), respectively. At most recent follow-up, there was a significant improvement in the mean modified Harris hip score, in which the maximum score is 91 points after omitting 9 points for hip range of motion and deformity, from 25.7 before surgery to 66.7 after surgery (p < 0.01). The advantages of this procedure include (i) the ease and accuracy of obtaining the proper position for fusion, (ii) th e ability to lengthen the affected leg at the same time, (iii) the diminish ed likelihood of compromising future hip operations, and (iv) the ability t o ambulate and bear weight throughout the treatment course. We recommend th is method of hip arthrodesis with external fixation for patients with intra ctable hip pain necessitating this procedure.