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KMID : 0374019810040030151
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Ewha Medical Journal
1981 Volume.4 No. 3 p.151 ~ p.157
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A Case of Surgical Correction of Micrognathla by the Horizontal Sliding Osteotomy in the Mandibular Body
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Abstract
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This is to report a surgical correction of the small lower jaw in a child. The R-yr-old girl had. sufferred from micrognathic facial disfigurement forming bird-shape chin.
The roentgenologic exam disclosed hypoplastic ascending ramus & condyle of the Rt. mandible. The early arrest of the mandibular growth might be induced by infection or trauma of the temporomandibular joint within 5Years after birth.
The ` orthcgnathic surgery. in a child has been usually delayed until the completion of bone growth, and the handicapped child should have been patient of impaired jaw function and unfaborable appearance.
In this case, the horizontal sliding csteotomy in the mandibular body was attempted to lengthen the body and.to rve the chin forwardly.
Reporting-.this case with review of literature, the following points may be noted;
1. The horizontal osteotomy in the mandibular body could be approached intra-orally without extensive hemorrhage or neurologic complications.
2. ´ circum-mandibular wiring was of value to immobilize the bony segments,. without any interference of masticatory or phonetic function during the bone healing.
3. The occlusion and opening of the jaw were not disturbed by this procedure and the appositional further growth could be expected._
4. The sliding reposition of the inferior body lengthened the mandible as long as lomm and extended the facial height as high as 4mm in vertical direction.
Therefore, the augmentation surgery of the mandibular body may not be abandoned until the complete growth of the jaw.
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