Temporomandibular joint disc repositioning using bone anchors: an immediate post surgical evaluation by Magnetic Resonance Imaging

Author:

Zhang ShanYong,Liu XiuMing,Yang XiuJuan,Yang Chi,Chen MinJie,Haddad Majd S,Chen ZhuoZhi

Abstract

Abstract Background Open joint procedures using bone anchors have shown clinical and radiograph good success, but post surgical disc position has not been documented with MRI imaging. We have designed a modified technique of using two bone anchors and 2 sutures to reposition the articular discs. This MRI study evaluates the post surgical success of this technique to reposition and stabilize the TMJ articular discs. Methods Consecutive 81 patients with unilateral TMJ internal derangement (ID) (81 TMJs) were treated between December 1, 2003, and December 1, 2006, at the Department of Oral and Maxillofacial Surgery, Ninth Peoples Hospital, Shanghai, Jiao Tong University School of Medicine. All patients were subjected to magnetic resonance imaging before and one to seven days post surgery to determine disc position using the modified bone anchor technique. Results Postoperative MRIs (one to seven days) confirm that 77 of 81 joints were identified as excellent results and one joint was considered good for an overall effective rate of 96.3% (78 of 81 joints). Only 3.7% (3 of 81) of the joints were designated as poor results requiring a second open surgery. Conclusions This procedure has provided successful repositioning of the articular discs in unilateral TMJ ID at one to seven days post surgery.

Publisher

Springer Science and Business Media LLC

Subject

Orthopedics and Sports Medicine,Rheumatology

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