Hoffman GR, Moloney FB, Effeney DJ
The stability of facial advancement surgery (in the management of combined mid and lower dento-facial deficiency). [Journal Article]
J Craniomaxillofac Surg 1994 Apr; 22(2):86-94.
The short-term (6 weeks postoperative) and long-term (12 months postoperative) skeletal stability of combined maxillary and mandibular advancement was evaluated by cephalometric analysis in 15 patients. The mean horizontal advancement of the maxilla was 5.84 mm. 6 weeks later a mean relapse of 0.03 mm (0.5%) was identified. The mean relapse at long-term follow-up was 0.59 mm (10.1%). The mean horizontal advancement of the mandible was 12.35 mm at menton and 12.65 mm at pogonion. At 6 weeks, mean horizontal relapse, respectively at the above landmarks, was 0.11 mm and 0.21 mm (1.3%). The mean relapse at long-term follow-up was respectively 2.19 mm and 1.98 mm (16.9%). Subjectively and objectively improvements were seen in facial aesthetics and dental occlusion. The results indicated that rigid fixation of osteotomies undertaken to correct 'horizontal facial deficiency' is a surgically predictable and relatively stable procedure when reviewed up to 12 months after surgery.
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