Hoffman G R, Moloney F B
Department of Maxillofacial Surgery, Princess Alexandra Hospital, Brisbane, Queensland.
Aust Dent J. 1996 Jun;41(3):178-83. doi: 10.1111/j.1834-7819.1996.tb04852.x.
Isolated horizontal osteotomy of the anterior mandible (genioplasty) to move the chin posteriorly can be used to improve facial profile. There has been an increasing tendency in practice to carry out this procedure in combination with maxillary and/or mandibular surgery. This is most appropriately undertaken when pre-operative prediction techniques indicate that chin prominence will remain excessive following maxillary and/or mandibular advancement surgery. This paper reviews surgical techniques applicable to posterior movement of the chin ("the setback genioplasty') and illustrates the clinical results achieved with its use.
孤立的下颌前部水平截骨术（颏成形术），用于将下巴向后移动，可用于改善面部轮廓。在实践中，越来越倾向于将该手术与上颌和/或下颌手术联合进行。当术前预测技术表明在上颌和/或下颌前徙手术后下巴突出仍将过度时，最适合进行这种联合手术。本文回顾了适用于下巴后移（“后退颏成形术”）的手术技术，并展示了使用该技术所取得的临床效果。
