Correction of mandibular deficiency by inverted-L osteotomy of ramus and iliac crest bone grafting

Abstract

Clinicians in China report that an alternative surgical procedure to correct retrusion of the lower jaw is safe and effective. Backward displacement of the lower jaw, or mandibular deficiency, can affect an individual’s facial appearance and the ability to chew food, speak, breathe, and sleep normally. Bilateral sagittal split ramus osteotomy (SSRO), the procedure typically used to correct mandibular deficiency, has associated risks of nerve injury and relapse. Jing Hu and his colleagues at Sichuan University, China, therefore assessed the clinical efficacy of the less-established, alternative procedure known as inverted L-osteotomy (ILO). Their early results showed that ILO aligned the upper and lower jaws of 11 adults with mandibular deficiency. The patients’ aesthetic appearances improved, and they had no associated permanent damage to their facial nerves.

Keywords

bone graft / inverted-L osteotomy / mandibular deficiency / treatment

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