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

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          Abstract

          RESUMEN La reabsorción condilar progresiva es una condición específica que afecta a la articulación temporomandibular, ocasionando una reabsorción lenta y progresiva del cóndilo mandibular. A pesar de ser una patología bien documentada con cierta predilección en mujeres jóvenes de entre 15 y 35 años, la causa exacta y la patogénesis siguen siendo poco claras. Se ha asociado a artritis reumatoide, enfermedades del tejido conectivo, patrón facial hiperdivergente en el plano sagital, Clase II dentoesquelética, disfunción preexistente de la ATM o incluso tras tratamiento ortodóncico o cirugía ortognática. Se presenta un caso clínico de una paciente reabsorción condilar con antecedentes previos de tratamiento de disfunción temporomandibular por medio de artroscopia operativa.

          Translated abstract

          ABSTRACT Progressive condylar resorption is a specific condition that affects the temporomandibular joint that causes a slow and progressive resorption of the mandibular condyle. Despite being a well-documented pathology with some predilection in young women between 15 and 35 years old, the exact cause and pathogenesis remain unclear. It has been associated with rheumatoid arthritis, connective tissue diseases, hyperdivergent pattern in the sagittal plane, dentoskeletal Class II, preexisting TMJ dysfunction or even after orthodontic treatment or orthognathic surgery. A case of a patient with condylar resorption that had been previously treated by temporomandibular joint dysfunction by operative arthroscopy is presented.

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          Progressive condylar resorption after mandibular advancement.

          Progressive condylar resorption is an irreversible complication and a factor in the development of late skeletal relapse after orthognathic surgery. We have evaluated cephalometric characteristics, signs and symptoms in the temporomandibular joint (TMJ), and surgical factors in six patients (one man and five women) who developed it after orthognathic surgery. The findings in preoperative cephalograms indicated that the patients had clockwise rotation of the mandible and retrognathism because of a small SNB angle, a wide mandibular plane angle, and a "minus" value for inclination of the ramus. There were erosions or deformities of the condyles, or both, on three-dimensional computed tomography (CT) taken before treatment. The mean (SD) anterior movement of the mandible at operation was 12.1 (3.9)mm and the mean relapse was -6.4 (2.5)mm. The mean change in posterior facial height was 4.5 (2.1)mm at operation and the mean relapse was -5.3 (1.8)mm. Two patients had click, or pain, or both, preoperatively. The click disappeared in one patient postoperatively, but one of the patients who had been symptom-free developed crepitus postoperatively. In the classified resorption pattern, posterior-superior bone loss was seen in three cases, anterior-superior bone loss in two, and superior bone loss in one. Progressive condylar resorption after orthognathic surgery is multifactorial, and some of the risk factors are inter-related. Patients with clockwise rotation of the mandible and retrognathism in preoperative cephalograms; erosion, or deformity of the condyle, or both, on preoperative CT; and wide mandibular advancement and counterclockwise rotation of the mandibular proximal segment at operation, seemed to be at risk. The mandible should therefore be advanced only when the condyles are stable on radiographs, and careful attention should be paid to postoperative mechanical loading on the TMJ in high-risk patients. Copyright © 2011 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
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            Idiopathic condylar resorption

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              Evaluation of condylar resorption rates after orthognathic surgery in class II and III dentofacial deformities: A systematic review

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                Author and article information

                Journal
                maxi
                Revista Española de Cirugía Oral y Maxilofacial
                Rev Esp Cirug Oral y Maxilofac
                Sociedad Española de Cirugía Oral y Maxilofacial y de Cabeza y Cuello (Madrid, Madrid, Spain )
                1130-0558
                2173-9161
                March 2021
                : 43
                : 1
                : 37-39
                Affiliations
                [1] Madrid orgnameHospital Universitario La Princesa orgdiv1Servicio de Cirugía Oral y Maxilofacial Spain
                Article
                S1130-05582021000100037 S1130-0558(21)04300100037
                10.20986/recom.2020.1126/2020
                6a2fb832-2974-4934-a722-9c276c2d8e18

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 11 June 2020
                : 07 March 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 10, Pages: 3
                Product

                SciELO Spain

                Categories
                Casos Clínicos

                Reabsorción condilar,temporomandibular join,cirugía artroscópica,Condylar resorption,articulación temporomandibular,arthroscopic surgery

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