Summary
Mandibular sagittal osteotomy is a routine technique in orthognathic surgery; some modifications have been performed over time. The lingual short split mandibular osteotomy technique show a modification in the lingual design being shorter and below the lingula, and is described with fewer complications. For years, radiographs were the only way to evaluate the design of osteotomies and the lingual trace could not be evaluated. Computerized Tomography (TC) allowed the evaluation of the designs of the surgical fractures, making it possible to assess the postoperative result. Was realized prospective research using 60 CT scans of patients operated on using the lingual short split technique, including variables related to the technique in the lingual cut. As a result, 73.33 % were type 1, 18.33 % type 2, 6.66 % type 3, and 1.66 % type 4. Types 1 and 2 have a fracture line drawing similar to the original technique; type 3 has a small variation; type 4 presented bone fragmentation. We conclude that the technique is predictable, without significant statistical variables, and well-visualized tracing with the methodology used. A new classification of the technique was recommended and is necessary to correlate it with clinical results in future studies.
KEY WORDS: orthognathic surgery, mandibular osteotomies, short lingual split, sagittal ramus osteotomy.
How to cite this article
PIMENTA E SOUZA, D.; SHINOHARA, E.; BUYSSE TEMPRANO, A. V.; SANT’ANA, E. Tomographic evaluation after mandible orthognathic surgery: Lingual short split technique. Int. J. Odontostomatol. 18(3):360-366, 2024.
