Osteonecrosis of the femoral head

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bilateral","isStack":true,"diagnosticCertainty":"confirmed_substantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/56173341/0._big_gallery.jpeg"},{"imageId":629312,"studyId":12883,"caseSlug":"avascular-necrosis-of-the-hip-11","caption":"Case 7","isStack":false,"diagnosticCertainty":"confirmed_unsubstantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/629312/c684b220557f2cf01dd3d5eff79419_big_gallery.jpg"},{"imageId":8074098,"studyId":31413,"caseSlug":"avascular-necrosis-of-hip-joint-bilateral","caption":"Case 8","isStack":true,"diagnosticCertainty":"confirmed_substantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/8074098/0e81dd0cb1ae7136ddfcad15e3ac90_big_gallery.jpg"},{"imageId":1178248,"studyId":14009,"caseSlug":"bilateral-avascular-necrosis-of-the-hip","caption":"Case 9: bilateral 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