The post-surgical stability of Le Fort 1 maxillary impaction: a comparative study of titanium versus resorbable fixation

A resorbable copolymer (82% poly-L-lactic acid: 18% polyglycolic acid) has been investigated as a potential alternative to titanium for fixation of Le Fort 1 maxillary impaction. No study has examined the skeletal stability of this procedure when resorbable copolymer is used. Fifty consecutive patients underwent maxillary impaction by means of Le Fort I osteotomy. Twenty-five patients were treated with titanium fixation; 25 patients were treated with resorbable fixation. Lateral cephalograms were obtained 1 week preoperatively (T1), 1 week postoperatively (T2) and after a minimum of 8 months postoperatively (T3). Linear and angular measurements were recorded digitally to evaluate 2-dimensional skeletal change. Statistical analysis showed no significant radiographic differences (p < 0.05) in long-term stability within or between the two groups. No clinical or radiographic evidence of wound healing problems were noted. These results support resorbable copolymer fixation of Le Fort 1 impaction as a viable alternative to titanium fixation.