Table 1: Evaluating MMP-9, MMP-13, NO, TIMP-1 and TNF-alpha levels in synovial lavage fluid and cartilage tissue types.

Material MeanStandard deviation

TIMP-1 Synovial lavage fluid843.012.610.67
Cartilage Tissue842.832.59
MMP-9Synovial lavage fluid905.921.630.28
Cartilage Tissue905.661.67
MMP-13Synovial lavage fluid900.680.23<0.001
Cartilage Tissue900.470.24
TNF-αSynovial lavage fluid840.320.09<0.001
Cartilage Tissue840.140.07
NOSynovial lavage fluid900.570.19<0.001
Cartilage Tissue900.360.19