Prof. ShanYong Zhang

Abstract. Modified open temporomandibular joint disc repositioning using bone anchors, how do we do?

To introduce a modified anchor technique for internal derangement of temporomandibular joint. Consecutive 177 patients (232 temporomandibular joints) diagnosed as internal derangement through clinical examinations and MRI, were treated with a newly modified anchor technique from July 2011 to March 2012. The technique is commonly proposed for temporomandibular joint internal derangement. The modified approach was composed of releasing anterior attachment and free fat grafts in temporomandibular joint disc anchor. Both preoperative and postoperative MRIs were taken to judge the disc position. For patients with malocclusion or irregular dentition, reposition biting plate and orthodontic treatment were also involved. Among postoperative MRIs of 232 joints, 226 joints (172 cases) were excellent and 4 joints (4 cases) were good, only 2 joints (1 case) were poor which was needed a second open surgery. The total effectiveness was 99.14%. This modified procedure has provided successful results in the treatment of temporomandibular joint internal derangement. The design is more reasonable. But further clinical evaluation is necessary.

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