Evaluation of Sagittal Curving Osteotomy vs Conventional Advancement Genioplasty in Retrogenia Patients: a Randomized Control Trial.

[BACKGROUND AND OBJECTIVES] With increasing aesthetic awareness, in addition to the forehead, nose, and cheekbone prominence, the chin nowadays is seen as one of the most important parts of the facial skeleton. Position of the chin has a strong influence on the assessment of the facial harmony; its different types and forms dominate the appearance. Furthermore, the expression of the chin is equated with character traits, and thus, it is an important component of the profile forms. Genioplasty is a routine procedure for the correction of aesthetic and functional deformity of the chin region. It is therefore one of the contour-enhancing surgical methods. The purpose of the present study is to study the versatility of sagittal curving osteotomy for advancement genioplasty as an alternative to conventional technique.

[MATERIALS AND METHODS] A total of 24 subjects were enrolled for the study who were randomly distributed into two groups: group 1(-12) comprising of patients in whom sagittal curving osteotomy was done and group 2 (- 12) comprising of patients in whom conventional osteotomy was done. Neurosensory disturbances and hard and soft tissue relapse were compared between the two groups.

[RESULTS] On comparison of all the variables, it was found that the conventional osteotomy technique had more hard tissue relapse and more neurosensory disturbance as compared to sagittal curving osteotomy technique.

[CONCLUSION] Results of this study suggest that the use of sagittal curving osteotomy may be helpful in reducing postoperative neurosensory disturbances and relapses following genioplasty. Hence, it is recommended that sagittal curving osteotomy can be used as an alternative osteotomy technique for advancement genioplasty.