Hip involvement in early XXXX .

@entity1 @entity66 @entity603 @entity572 @entity309
OBJECTIVE: To study early hip involvement in @entity309 ( @entity309 ) and to evaluate the usefulness of ultrasonography in the detection of hip joint @entity603 in @entity309 . METHODS: Study I: The number of @entity572 was recorded in a cohort of 113 @entity1 with @entity309 of at least five years disease duration followed from an early stage. Study II: Ultrasonography was evaluated as a method to identify hip joint @entity603 in 76 @entity1 with @entity309 of @entity66 duration, by relating it to radiograms and clinical findings. RESULTS: Study I: Twenty one @entity572 were performed in 15 of the 113 @entity1 . The median disease duration at the time of first arthroplasty was 48 (range 10-76) months; the annual incidence was approximately constant between two and six years. High disease activity at the start of the study was predictive of requirement for hip prosthesis. Study II: Hip ultrasonography was pathological in 13 of the 76 @entity1 studied, bilaterally in nine. @entity572 could not be confirmed on clinical grounds only as seven of the @entity1 with positive ultrasonographic findings were asymptomatic, and the remaining six @entity1 had only mild symptoms of hip involvement. Also, six of the 63 @entity1 with normal ultrasonography had mild symptoms. There was no difference regarding demographic, clinical, and laboratory findings in @entity1 with and without @entity572 . CONCLUSIONS: Early hip joint destruction giving symptoms mostly at a very late stage is frequent in @entity309 . Ultrasonography rather than signs or symptoms could identify @entity1 with hip joint involvement and provide a rationale for early treatment.
