Nguyen USDT, et al. - Through a prospective study that recruited 610 subjects from a total hip arthroplasty (THA) registry from 2010 to 2014, the researchers evaluated whether a change in mental health (seen in patients with pain and functional disability and is common in osteoarthritis patients) could be associated with betterment in pain and function 1-year post-surgery. An improvement of 10 points in the 1-year change in pain score led to an elevation in a 0.78 point in the 1-year change in mental component score, whereas a 10-point improvement in the 1-year change in function was correlated with a 0.94 point increase. Hence, from baseline to 1-year post-THA, mental health markedly improved. Furthermore, an association of greater improvement in pain and function with a huge improvement in mental health 1-year post-THA was also observed.