Two-point nasomaxillary fixation of the Le Fort I osteotomy: assessment of stability at one year postoperative

Postoperative skeletal stability at the one-year follow-up after splintless Le Fort I osteotomy using patient-specific osteosynthesis versus conventional osteosynthesis: a randomized controlled trial

“…A 3D fusion analysis method was used in the current study, in contrast to the 2D methods used by Kotaniemi et al and in other previous PSO relapse studies. [8][9][10] Comparison of the current results with those in the previous literature is therefore only indicative of the fact that the results are in the same range.…”

“…9 In contrast, the miniplates that are conventionally used have to be bendable during surgery to achieve a proper, passive and tension-free fitting. The rigidity of the PSO plates might influence the postoperative stability, as has been indicated in two previous studies, where it was shown that PSO provided enough stability for application at the nasomaxillary buttresses only without posterior fixation, 8 or using only wire fixation for posterior fixation. 10 Besides the publications mentioned above, there have only been a few other studies on skeletal stability after the application of PSO.…”

“…4 Since the introduction of Le Fort I surgery, developments aimed at improving the stability by improving the fixation method have been reported. [5][6][7][8] Patient-specific osteosynthesis (PSO) plates are designed to follow the anatomical contour of the maxilla without the need for intraoperative bending, ideally resulting in a passive and tension-free fitting. 9 In contrast, the miniplates that are conventionally used have to be bendable during surgery to achieve a proper, passive and tension-free fitting.…”