Fig. 4From: Effects of focal metallic implants on opposing cartilage – an in-vitro study with an abrasion test machineHistologic pictures of specimens tested for 1 h in saline (a-c) and hyaluronic acid (Viscoseal Syringe, TRB Chemedica AG, Haar/Germany (d-e) without any cartilage defect. (Giemsa 5x)Back to article page