“…Of the 34 studies included in our analysis, 12 were randomized clinical trials [ 17 , 20 , 22 , 25 , 42 , 55 , 59 , 60 , 65 , 68 , 69 , 73 ] and 22 were observational studies [ 2 , 7 , 9 , 10 , 24 , 27 , 29 , 30 , 35 , 37 , 40 , 44 , 47 , 51 , 52 , 57 , 61 , 70 , 72 , 75 – 77 ]. The 34 included studies investigated a total of 42,411 participants; among whom 32,385 underwent cemented hemiarthroplasty and 10,026 underwent uncemented hemiarthroplasty (Table 1 ).…”