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| Dr Vaibhav Shah |
Hemifacial Microsomia
Hemifacial
Microsomia is a birth deformity affecting the bony skeleton and soft tissues of
the craniofacial region. It is typically characterized by pronounced asymmetry
of the face due to deficient growth of the lower jaw (mandible) on one side,
deficient soft tissues of the face and underdeveloped ear (microtia).
Bony
and soft tissue structures on one side of the face grow lesser than the other
side. The affected side of the face appears disproportionately smaller than the
other. Commonly affected are the lower jaw, eye, ear, facial nerve and cheek.
The most significant of these deformities is that of the jaws, which when
corrected, minimizes the entire deformity and makes the face look more
symmetric.
In
hemifacial microsomia, the shape and size of the lower jaw is deformed on one
side causing an asymmetric face. The chin appears deviated to the affected
side. Facial asymmetry progresses as the patient grows. As a result, teeth bite
(occlusion) is slanted.
Treatment
Based on various parameters like severity of the
defect and age of the patient, there are different treatment options. Cheek and
eye socket bone defects if present, can be corrected with specialized
craniofacial surgeries. Ear and soft tissue defects can be rehabilitated with
reconstructive surgeries.
Distraction
Osteogenesis
The goal of treatment in hemifacial microsomia is to
elongate the deficient jaw bone to restore facial symmetry and correct the
slanting bite (occlusion). To achieve this, an advanced and effective treatment
technique is distraction osteogenesis. This is a new technique for regenerating
new bone by slow, progressive stretching of the bone, without requiring a bone
graft. The
jaw bone on the deficient side is cut. A sophisticated device called distractor
is placed such that the two arms of the device are fixed to the two segments of
jaw bone. After a few days, a screw attached to the distractor is turned
gradually, ideally at a rate of 1 mm per day. When this is done, the two cut
segments move apart and new bone is formed in the resultant gap. After the new
bone is stabilized, the distractor device is removed.
Subsequently,
the jaw bone is lengthened to the desired amount correcting the asymmetry of
the face. This is a powerful tissue engineering technique for generating
unlimited bone.
Eminent Facio-Maxillary Surgeon Dr.Vaibhav Shah is highly acclaimed for his prowess in the
treatment of Hemifacial Microsomia. He is a pioneering expert in this field and
has applied several revolutionary techniques including “Simultaneous Maxillary
and Mandibular Distraction” giving excellent results to set right facial
asymmetry - Dr.Vaibhav Shah.
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