Arthroscopic findings in osteoarthritic XXXX .

@entity1 @entity571 @entity603 @entity528 @entity1348
PURPOSE: This article reports on the results of a study of the arthroscopic findings in the joint surfaces of osteoarthritic @entity1348 ( @entity1348 ). @entity1 AND METHODS: Arthroscopy was performed in the upper joint compartment of 40 @entity1348 in 40 @entity1 . Thirty-one @entity1348 that were diagnosed with @entity571 ( @entity571 ) constituted the @entity571 group. On the basis of the presence of symptoms related to disc displacement and perforation, @entity571 subgroups were defined. Nine @entity1348 that were not involved with @entity571 constituted the control group. During the examination, various arthroscopic variables were recorded. Differences between groups and between subgroups were tested statistically. RESULTS: In the @entity571 group, several arthroscopic variables were found significantly more frequently than in the control group. These included retrodiscal tissue redundancy, adhesions, and heightened attachment to the posterior wall of the glenoid fossa; articular disc displacement and limited mobility; and cartilage @entity528 . Moreover, in the @entity571 group, disc displacement was found significantly more frequently in the period after 6 months than during the first 6 months of clinical signs and symptoms. Anterodiscal hypervascularity was found significantly more frequently during the first year than after the first year, as well as more during the first 2 years than after the first 2 years of clinical signs and symptoms, whereas a lowered attachment on the anterior slope of the articular eminence was found significantly more often after 2 years than during the first 2 years of clinical signs and symptoms. CONCLUSIONS: The findings in this study suggest that @entity571 of the @entity1348 may initially result in synovial tissue hypervascularity, creeping @entity603 , and redundancy, and subsequently in adhesion formation and a reduction of the posterior and anterior recess. Because of cartilage fibrillation on the articular eminence, and the subsequently reduced surface smoothness, the articular disc may become displaced. Eventually, disc mobility is limited, and adhesions and a reduced posterior and anterior recess prevail.
