Figure 4. Effect of testicular hyaluronidase on trans-synovial flow (Q_s) at various intra-articular pressures (P_j) in 7 rabbits.

A, pooled results from control knee joints (open symbols) and contralateral joints after treatment with testicular hyaluronidase (filled symbols). Squares show results below yield pressure and circles show results above yield pressure. Regression slopes are given in Table 1. B, means ± s.e.m. of flows interpolated to standard pressures for comparison of control and post-enzymatic flows at same pressure. * P = 0.05; **P = 0.01; ***P = 0.001 - t test.