Abstract
This study was conducted to investigate the effects in superior articular cavity adhesion with closed lock cases based on the arthrocentesis and pumping-manipulation therapy. In general the fact that articular cavity adhesions were related to symptoms which occurred as trismus and pain in mouth opening with closed lock was eliminaled by surgical techniques. Arthrocentesis and pumping-manipulation therapy is the simplest and least invasive of all surgical techniques, and is highly successful in acute closed lock cases. In this study, arthrocentesis and pumping-manipulatoin therapy was conducted on 40 cases of closed lock patients and double contrast Herical CT Multiplanar Reconstruction Images (MPR) was performed concurrently. The effects of adhesion on closed lock were inivestigated from the results of the therapy. The results were as follows: 32 cases obtained the increased mouth opening (40.0mm over), and 35 cases were alleviated of pain at maximal jaw opening. The ratio of adhesion was 28 cases (70.0%), however many cases of adhesion were obtained with good results by the therapy only. It was said that the therapy had several actions which excluded fibrlilation and slight adhesion but it was unthinkable that those actions were performed completely. Thus this therapy cannot treat adhesion, but adhesion has no effect on treatment of closed lock against conventional theory. From the above, it was inferred that many cases of closed lock were involved with superior articular cavity adhesion and adhesion did not prevent treatment.
