Fig. 5.

The semiquantitative analysis for the aseptic loosening, rheumatoid arthritis and the negative control groups. Semiquantitative analysis of the immunofluorescence was performed for the samples of the aseptic loosening, rheumatoid arthritis and the negative control groups. The optical density was calculated and compared. The differences between aseptic loosening and the negative control group and between rheumatoid arthritis and the negative control group were significant (both P < 0.001), whereas the difference between aseptic loosening and rheumatoid arthritis was not significant (P > 0.05)