Reabsorción condilar de la articulación temporomandibular tras un procedimiento artroscópico

Abstract

Reabsorción condilar de la articulación temporomandibular tras un procedimiento artroscópico / Condylar resorption of the temporomandibular joint after an arthroscopic procedure

Anatomorphological variations of the temporomandibular joint after orthognathic surgery: A descriptive study.

“…Changes in the position of the condyles have been mainly related to the fixation system used during surgical treatment and the surgeon's ability to control the proximal segment when performing the bilateral sagittal ramus osteotomy, primarily to avoid excessive stress generated by compression and torsion of the proximal segment, prolonged malposition of the mandibular condyle in its respective fossa and increased perimandibular muscle tension 11,14 . However, if the articular surface is remodelled or undergoes resorption seems to be related to the adaptation capacities of the TMJ of each individual, making the presurgical imaging evaluation of the TMJ essential when planning surgery, especially in patients who show some of the risk factors for condylar resorption, such as hyperdivergent craniofacial biotype, female gender, temporomandibular disorders, among others [1][2][3][4][8][9][10][11][12]15 . Gateno et al 7 showed a significant decrease in the joint space in patients with anterior disc displacement.…”

“…It represents a fundamental component in orthognathic surgery because, when performing the movements of the bone segments, it must adapt to achieve satisfactory immediate and long-term results [1][2][3][4][5] . However, pathological condylar resorption occurs when faced with excessive mechanical stress or when the host's adaptive capacities are diminished or exceeded [6][7][8] .…”

“…Condylar resorption after orthognathic surgery (CROS) is a rare clinical entity that affects the TMJ. It is defined as a progressive alteration of the shape and volume of the mandibular condyles after bilateral sagittal ramus osteotomy, bimaxillary surgery or even Le Fort osteotomy, resulting in a decrease in posterior facial height, progressive mandibular retrusion and anterior open bite, consequently generating an overload of the TMJ 3,7,8 .…”