The Journal of Bone and Joint Surgery, Vol 69, Issue 5 684-690, Copyright © 1987 by Journal of Bone and Joint Surgery, Inc
Longitudinal growth of the femur and tibia after diaphyseal lengthening
F Shapiro
Growth of the femur and tibia after lengthening of their diaphyses, which
had been performed several years before skeletal maturity, was assessed in
eighteen patients by serial orthoroentgenograms. The rate of growth of the
lengthened femora, which had been congenitally short, increased after each
of seven lengthening procedures, from an average preoperative rate of 82
per cent of the normal side to 90 per cent of the normal side. The amount
of surgical lengthening was similar for the femora and the tibiae,
averaging 18 per cent of the preoperative length of the bone in the femora
and 20 per cent of the preoperative length of the bone in the tibiae.
However, the rate of growth of the lengthened tibiae decreased after each
of eleven lengthening procedures (six performed for a congenital short
tibia; three, for patients who had Ollier's disease; one, for a patient who
had poliomyelitis; and one, for a patient who had hemangiomas), from an
average preoperative rate of 88 per cent of normal to an average of 64 per
cent of normal.