Dr. Weiguang Ma

平成26年度九州歯科学会主催講演会
Two-staged temporomandibular joint
replacement for treatment of recurrent
ankylosis and facial trauma
Weston Oral Surgery Center Oral & Maxillofacial Surgery
Dr. Weiguang Ma
Abstract
Two-staged tempromandibular joint replacement for management of recurrent anklosisi
Recurrent ankylosis of the tepromandibular joint (TMJ)is due to heterotopic bone formation that
cause partial or complete ankylosis of the joint with symptoms of pain and limited range of motion.
2-staged TMJ replacement with a patient-fitted total TMJ prosthesis was used. At the first stage
surgery, the pervious TMJ components were removed and a gap resction including removal of the
heterotopic bone completely was preformed.
The gap was maintaining by implanting a silicone spacer. Once the patient-fitted device
componenets had been designed and manufactured, the second stage surgery was planned with
removal of the spacer and placement of the TMJ prosthesis. With 2-3 years follow up. Patients
remain asymptomatic and increas mouth open to 35mm range that has remained stable.
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