Core decompression and grafting has been shown to relieve @entity158 and possibly prevent disease progression in @entity1 with symptomatic @entity2530 ( @entity2530 ) of the hip. However, there is a lack of evidence regarding the management of the asymptomatic hip with femoral head @entity2530 . The purpose of this study was to evaluate the outcome of core decompression in the asymptomatic hip with @entity2530 . We prospectively followed 37 consecutive @entity1 with MRI confirmed @entity2530 of the hips that underwent simultaneous bilateral core decompression and bone grafting. Prior to surgery, only one of the hips was symptomatic, and the main indication for surgical decompression of the asymptomatic side was to prevent disease progression. No hip on the asymptomatic side was staged greater than Steinberg IIB classification. Serial radiographs were followed for evidence of disease progression. Six @entity1 were lost to follow-up prior to two years. The remaining 31 @entity1 were followed for an average of 32.6 months. There were 20 @entity1 and 11 @entity1 with an average age of 40.6 years. Ten @entity1 with asymptomatic hips at the time of surgical decompression had disease progression requiring @entity2445 . The mean time to arthroplasty in this group was 15.1 months. Meanwhile, 13 symptomatic hips at the initial surgery progressed to @entity2445 at an average of 12.9 months following core decompression. The proportion of hips requiring conversion to @entity2445 was similar between the two groups (p=0.30), and the rate of progression to @entity2445 was not significantly faster compared to @entity1 with symptomatic hips who subsequently required @entity2445 (p=0.18). Core decompression for asymptomatic @entity2530 of the femoral head is unpredictable. Based on our results, asymptomatic @entity75 particularly in the setting of bilateral disease should be closely observed and surgery reserved for when symptoms arise.

Prophylactic decompression and bone grafting for small asymptomatic XXXX of the femoral head.

@entity1 :: ('9606', 'Species') :: ['women', 'patients', 'men'] @entity75 :: ('MESH:D001927', 'Disease') :: ['ON lesions'] @entity2445 :: ('MESH:D013619', 'Chemical') :: ['THA'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain'] @entity2530 :: ('MESH:D010020', 'Disease') :: ['ON', 'osteonecrosis']
@entity75 :: (MESH:D001927,Disease) :: ['osteonecrotic lesions']
