Januari 02, 2017
assalamu alaikum! i am dr. abdullah al masud, ...maxillofacial surgeon...asst professor,dhaka dental college & hospital. today i am gonna talk to you about a surgery of temporo mandibular joint ankylosis facial joint allows us to open our mouth during eating food or speaking... have you ever seen people who can't even open their mouth? ..the girl we can see on the screen, is being asked to open her mouth.... ...but she can't. she has a very little jaw movement. her tm joint is fused on one side of the face..
...and the other side is normal. this condition can develop if a child fell down during playing... a child will play at home or school, its totally natural. if a child gets hit on his/her jaw during playing, ....it can cause internal bleeding on the facial joint. after that, it gets locked gradually. so, the guardians should take good care of their child if they get hurt... ...and if they notice gradual reduction in mouth opening, they should consult a doctor. regular exercise of joint can reduce the chance of developing lock jaw.
so, we are gonna start the operation. usually we expose the joint on the front side of the ear. we can see the exposed area, where condyle of the mandible got fused completely with the joint.... we will now resect that fused bone with bur.... ..and create a gap between them, which is called gap arthroplasty. the fused bone is being resected & separated completely.... ...with the help of bur & osteotome. we are separating it from the surrounding soft tissue with the help of periosteal elevator. now we can see the resected part of the bone which got fused with the tm joint
just after the resection, the mouth opening of this girl has increased immensely.... ...which is measured as 40 mm or 4 cm... usually 35 mm mouth opening atleast is considered as normal. now its being exercised now with fergusson mouth gag.
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