Clinical follow-up study of arthroscopic lysis and lavage operation for superior.

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Fifty-two subjects with restricted translation of the condyle and degenerative joint disease of the TMJ were operated by arthroscopic lysis and lavage into superior joint compartment of the TMJ. These subjects were diagnosed to 26 joints of anterior disc displacement without reduction and 4 joints of non disc displacement with adhesion and 16 joints of osteoarthrotic changes by pre-operative imaging procedures (Double-contrast arthrotomography or MRI). Following surgery, subjects were evaluated for 2 to 29 months by clinical examinations. Retrospective analyses were resulted in the followings. 1) In range of opening motion, mean data of pre-operative conditions were 31.4 mm and these were increased to 40.6 mm post-operatively. (P<0.01, t0=10.41) 2) Functional pain of the TMJs were decreased from fourty to twenty cases post-operatively. (P<0.05, x2=15.04) 3) Crepitations of the TMJ were increased from five to thirteen cases post-operatively. (P<0.05, x2=6.12) 4) Inclusive post-operative results were graded to 19 cases 40%) of excellent, 17 cases (35%) of good, and 12 cases (25%) of poor by B. Sanders standards (1987).
特定非営利活動法人日本口腔科学会の論文