Fig. 5.

In this chart, the Articular Surface Replacement resurfacing patients have been placed into two groups: those with severe aseptic lymphocyte-dominated vasculitis-associated lesion (ALVAL) and a large fluid collection (n = 12, red); and those with absent/mild/moderate ALVAL and a small fluid collection (n = 19, blue). The regression modelling demonstrated that patients with severe ALVAL and large fluid collections were found to have greater cobalt (Co) concentrations when adjusted for volumetric wear rates.