To present different semi-quantitative MRI scoring systems for hip osteoarthritis with pictorial review and introduce their differences, similarities, weaknesses and strenghts.

Osteoarthritis (OA) of the hip is a common disease especially in older population. Hip is a weight-bearing joint therefore is especially prone to osteoarthritic changes. Because of the rapidly evolving articular cartilage therapies there is increased interest in early identification of OA especially in young adults with femuroacetabular impingment and congenital development dysplasia of the hip, both of them being potential risk factors for consequent hip OA while being surgically treatable conditions. Moreover, it is crucial to establish general reporting system for further improvement in...

SHOMRI scoring system1 incorporates 8 features including articular cartilage loss, bone marrow lesions, subchondral cysts, labral abnormalities (Figure1), loose bodies (Figure 2), joint effusion, paralabral cyst and ligamentum teres abnormalities. Yet it excludes evaluating some of the well known features of OA for example osteophytes and subchondral sclerosis because they assume these features can be better and more time effectively evaluated on plain radiographs. SHOMRI scoring systems1 divides hip joint in 10 different subregions to evaluate articular cartilage morphology, subchondral bone marrow lesions and subchondral...

Early detection of hip OA requires a reliable semi-quantitative MRI scoring system for an appropriate treatment of early stages of hip OA. Scoring systems differ, one being more accurate with more evaluated features, while other correlates with clinical and surgical outcome. A standardised scoring system with possible inclusion of all above mentioned criteria and features would be ideal yet for that, further larger studies are needed.

1. Lee S, Nardo L, Kumar D, Wyatt CR, Souza RB, Lynch J, et al. Scoring Hip Osteoarthritis with MRI (SHOMRI): a Whole Joint Osteoarthritis Evaluation System, J Magn Reson Imaging. 2015; 41(6): 1549–1557. 2. Roemer FW , Hunter DJ, Winterstein A, Li L, Kim YJ, Cibere J, et al. Hip Osteoarthritis MRI Scoring System (HOAMS): reliability and associations with radiographic and clinical findings. Osteoarthritis Cartilage.2011; 19(8): 946–962. 3. Neumann G, Mendicuti AD, Zou KH, Minas T, Coblyn J, Winalski CS, Lang P. Prevalence of...