The Differences in Imaging Findings Between Painless and Painful Osteoarthritis of the Hip.
Hiroaki KijimaShin YamadaNatsuo KonishiHitoshi KubotaHiroshi TazawaTakayuki TaniNorio SuzukiKeiji KamoYoshihiko OkuderaMasashi FujiiKen SasakiTetsuya KawanoYosuke IwamotoItsuki NagahataTakanori MiuraNaohisa MiyakoshiYoichi ShimadaPublished in: Clinical medicine insights. Arthritis and musculoskeletal disorders (2020)
Investigation of the differences between painless and painful osteoarthritis of the hip showed that the cases with more pain have BMLs of the femoral head on MRI that extend not only to the loading area, but also to the central-inferior area. Even with the same x-ray findings, the pain was stronger in patients with severe psoas atrophy. Thus, the instability due to muscle atrophy may also play a role in the pain of hip osteoarthritis.