Limb Lengthening and Limb-Length Discrepancy

Limb lengthening and reconstruction techniques cansuch as fibular hemimelia, congenital short femur and
be used to replace missing bone and lengthen and/ orhemiatrophy will often have unequal leg length and
straighten deformed bone segments. The proceduresthis may be associated with deformity. Many adults
may be performed on both children and adults whohave had this condition since childhood and have
have limb length discrepancies due to birth defects,developed back pain and hip arthritis from the leg
diseases or injuries. The limb lengthening andlength discrepancy. Growth plate fractures and bone
deformity correction process works on the principleinfections in children can cause stunting of growth
of distraction osteogenesis. This is a revolutionarythat results in discrepancy.
concept that reverses the long-held belief that boneFollowing trauma, bones can heal in a shortened and
cannot be regenerated. In this process, a bone thatdeformed position (mal-union). Sometimes the bone
has been cut during surgery can be graduallycan even remain unhealed (non-union). Limb
distracted (pulled apart), leading to new bonelengthening procedures address all of these issues.
formation (osteogenesis) at the site of theWe have been able to successfully correct large
lengthening. In this way, bone segments can bedeformities and equalize limbs with discrepancies of
lengthened by 15 to 100 percent of their originalseveral inches. A segment of bone can be missing
length. We use a variety of techniques, including theafter a bone tumor, bone infection or severe
use of monolateral (one-sided) and circular externalfracture. We can transport new bone to fill in this
fixation devices, to correct angular deformities as welldefect.
as limb length discrepancies. With these procedures,Short stature can be very disabling in patients with
we provide opportunities for individuals whodwarfism, for example. We can lengthen both legs
previously had no treatment alternatives.simultaneously to increase stature. We have been
The regenerated bone is normal and does not wearable to lengthen achondroplastic dwarf patients 12
out. The muscles, nerves and blood vessels grow ininches in the legs and five inches in the arms. This
response to the slow stretch like they do during aallows them to function more independently and be
growth spurt or in pregnancy. The actual procedure isable to reach the telephone, toilet and gas pedal, for
minimally invasive and requires only one or two nightsexample.
in the hospital. Patients aren't in much pain since theYoung adult patients with leg deformities are at risk
distraction is so gradual and patients can continue tofor developing arthritis as a result of their
walk during the treatment.malalignment. These same techniques can be used to
Children and adults can be appropriate candidates forcorrect severe deformities safely and avert the need
the procedure. Children with congenital deformitiesfor joint replacement.