顎関節円板転位の臨床ならびに病理所見

抄録

Surgical treatment was performed in 12 cases of discopathy of the temporomandibular joint with displacement of the articular disc. Clinical and pathological studies on these cases gave the following results.
1. Classification of the type of displacement of the articular disc showed 6 anterio-lateral type cases, 5 anterior type and 1 anterio-medial type.
2. In 9 cases, the injury to the articular disc was serious and adhesion to the condylar head was also observed.
3. In 2 cases, the articular disc had a horizontal rupture as well as a transverse rupture.
4. Rupture of the organizing collagenous fibers of the articular disc was seen in all cases, including 3 cases in which no macroscopic injury to the articular disc was found.