Skip to main content
Fig. 5 | BMC Clinical Pathology

Fig. 5

From: Histopathological characterization of corrosion product associated adverse local tissue reaction in hip implants: a study of 285 cases

Fig. 5

Features of corrosion products in the Non-MoM DMNTHA group. a MoP THA with CoCr dual exchangeable neck (inset) with corrosion on distal male taper (Stryker Rejuvenate, implantation time 20 months). b Neo-synovium showing superficial layer of macrophagic infiltrate and deep lymphocytic infiltrate (H-E x100). c Giant cell reaction without formation of granulomas to large aggregates of greenish and corrosion products (H-E x200). d Large aggregate of corrosion products with plate-like structure suggestive of layering of corrosion (greenish) and blood (reddish) products (H-E x400). e MoP THA with CoCr dual exchangeable neck with original CoC bearing surface and neck (inset, right upper corner) and second revision neck (inset, lower corner) with corrosion products on the male geared surface (OTI Encore, implantation time at first revision 36 months and at second revision 44 months from first revision). f Neo-synovium of first revision showing superficial layer of macrophagic infiltrate and dense layer of lymphocytic infiltrate (H-E x100). g Sarcoid-like granulomatous reaction with central green aggregates of corrosion products of second revision (H-E x100). h Large aggregate of layered corrosion products detached from the dual exchangeable neck (H-E x100) with scalloped shape of the gearing surface (inset)

Back to article page