BACKGROUND: In a new health care economy, there is an emerging need to understand and quantify predictors of @entity572 ( @entity572 ) outcomes. We investigated the association between preoperative radiographic disease (as measured quantitatively by joint space width [JSW]) and @entity1 -reported function, activity, @entity158 , and quality of life after @entity572 . METHODS: We retrospectively analyzed 146 @entity1 (146 hips) 55 years or younger with a diagnosis of @entity571 who underwent cementless @entity572 between January 2009 and December 2010. Preoperative pelvic radiographs were measured by 1 author blinded to clinical outcomes to establish JSW, defined as the shortest distance between the femoral head margin and the superolateral weight-bearing portion of the acetabulum. The JSW value was treated as a continuous variable when applied to statistical modeling. The relationship between the JSW and the improvement of clinical outcome was examined via a general linear modeling approach with adjustments for @entity1 ' age, body mass index, and sex. RESULTS: We identified an inverse relationship between preoperative JSW and improvements in functional, activity, @entity158 , and quality of life. We found that, as JSW decreased by 1 mm, the outcome measure improvements were modified Harris Hip Score of 6.3 (p<0.001); SF-12 physical: 2.1 (p=0.027); WOMAC- @entity158 : 4.8 (p=0.01); and UCLA Activity: 0.44 (p=0.02). CONCLUSIONS: Our results demonstrate that @entity1 with greater preoperative joint space have less predictable improvement in terms of function, @entity158 relief, and activity. These findings suggest that @entity572 in young @entity1 with a JSW less than 1.5 to 2 mm provides more predictable improvements in @entity158 and functional outcomes.

Preoperative Joint Space Width Predicts @entity1 -Reported Outcomes After Total Hip Arthroplasty in Young XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity572 :: ('MESH:D006617', 'Disease') :: ['THA', 'total hip arthroplasty'] @entity571 :: ('MESH:D010003', 'Disease') :: ['osteoarthritis'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain']
@entity1 :: (9606,Species) :: ['Patients']
