Frequencies of the different immune subsets calculated as (A, B) frequency of viable monocytes, (C, E, F, G, H, I, J, K) frequency of viable CD45+ cells, (D) frequency of viable macrophages, (L, M, N, O, P, U, V, W) frequency of viable CD4+ T cells, (Q, R, S, T, X, Y) frequency of viable CD8+ T cells. Each histogram in the figure represents the mean ± SD of the measured parameters. The statistical significance of differences between microtextured and macrotextured prostheses was determined using an unpaired t test with Welch’s correction.