Condylar resorption in orthognathic patients after mandibular bilateral sagittal split osteotomy: a systematic review

Abstract

None.

Computer-assisted teaching of bilateral sagittal split osteotomy: Learning curve for condylar positioning

“…This might have led to the interference of unidentified posterocaudal bony segments with the final positioning of the condylar segment, showing that placement in a similar preoperative position is still challenging after excessive mandibular movement [ 29 ] ( Fig 8 ). Indeed, it is commonly accepted that advancements greater than 10 mm expose condyles to condylar resorption due to an increasing of tension of the surrounding soft tissues producing an inferior-posteriorly directed force [ 3 , 30 ]. Condyle rotation induces excessive mechanical stress and the adaptive capacities of the host are diminished, the remodeling becomes dysfunctional, and this leads to condylar resorption.…”

“…Acquisition of condyle repositioning skills is critical in achieving BSSO competency to avoid adverse effects on the temporomandibular joint. The unsuitable positioning of condyles represents one of the causative mechanism that may induce temporomandibular joint noxious effects among many factors [ 3 ]. The relationship between intraoperative malpositioning of the condyle and the occurrence of condylar resorption with relapse resulting in high levels of strain is well-known.…”

“…The relationship between intraoperative malpositioning of the condyle and the occurrence of condylar resorption with relapse resulting in high levels of strain is well-known. Condylar resorption is a complication with a reported frequency of between 1.4% and 31% [ 3 , 4 ]. Relapse of the occlusal result can occur because of unduly posterior positioning of the condyle during mandibular advancement [ 5 , 6 ] or a high degree of rotation of the condyle during mandibular setback [ 7 ].…”

Postoperative stability of conventional bimaxillary surgery compared with maxillary impaction surgery with mandibular autorotation for patients with skeletal class II retrognathia

“…Postoperative alterations after mandibular advancement surgery with BSSO, such as increased loading of the temporomandibular joint (TMJ) or positional condylar changes, may occur. 1,2 Postoperative skeletal relapse is affected by movements of bone at the osteotomy sites as well as changes in the position and morphology of the condyles. 3 The extent to which these changes exceed the natural adaptive capacity of the TMJ is likely to give rise to a clinical complication known as progressive condylar resorption.…”

“…3 The extent to which these changes exceed the natural adaptive capacity of the TMJ is likely to give rise to a clinical complication known as progressive condylar resorption. 1,3 This is reported as a late postoperative relapse (over six months) after BSSO for mandibular advancement, and leads https://doi.org/10.1016/j.bjoms.2019.10.309 0266-4356/© 2019 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.…”