Figure 3

Cytofluorometry of peripheral T cells. A By cytofluorometry the peripheral T cells of a patient before and 9 days after surgery were analysed. Before surgery, 57.0% of CD8+ cells were negative for CD28, but only 45.6% after surgery; and 7.4% of CD4 versus 4.6% after surgery. The CD8 + CD28- and CD4 + CD28- cells expressed CD11b, indicative of an activated T effector cell. B Shown is the percentage of CD4 + CD28- cells in patients with metallosis (left) or patients with aseptic loosening (right) before and after surgery. C The mean fluorescence intensity of CD11b on T cells declined after surgery (shown are data of four patients; each symbol refers to one patient and data obtained before and after surgery are connected by a line).