A study on surgical cases of recurrent dislocation of the temporomandibular joint

概要

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It is said that recurrent dislocation of the temporomandibular joint (TMJ) is caused not by abnormal bone formation but by organic or functional changes of the soft tissue of the TMJ. Since there is no unified opinion about the etiology of this condition, many treatments are recommended. This paper reports a clinical study of 16 joints in 10 patients which were in need of surgical treatment. They were examined by radiography, double contrast arthrographic computed tomography (10 joints in 7 patients) and magnetic resonance imaging (6 joints in 4 patients). These showed that the hard tissue of the TMJ in these patients was almost normal radiographically. It is suggested that the crisis factors are abnormality of the neuro-muscular system caused by changes and collapse of occlusion or by central neuron system disease and drugs, anterior displacement of discs, abnormality of retrodiscal pads and relaxation of the articular capsule of the TMJ and lateral ligament. All cases were successfully treated by Dautrey procedure, so it seems that this procedure gives the best results.
一般社団法人日本顎関節学会の論文