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Fig. 3 | Arthritis Research & Therapy

Fig. 3

From: Pure platelet-rich plasma facilitates the repair of damaged cartilage and synovium in a rabbit hemorrhagic arthritis knee model

Fig. 3

a Gross observation of the rabbit knees after the rabbits were euthanized. The tissues around the joint were shown by the arrows. In the control group, the synovium and the surface of the femur condyle were white and smooth. However, in the other four groups, the tissues all turned yellow in different degrees. The mild treated group was most similar to the control group. b The diameter of each group. Control, control group; MT, mild treated group; MUT, mild untreated group; ST, severe treated group; SUT, severe untreated group. All four experimental groups had a larger diameter than the control group (*p < 0.05). The diameters of treated groups were smaller than the untreated groups (#p < 0.05, +p < 0.05). Error bars indicated the standard deviations of the mean values. c The diameter differences of the knee joint between treated and untreated groups. The mild HA groups (mild treated group and mild untreated group) (2.67 ± 0.75 mm, 95%CI, 1.20–4.14 mm) had a larger diameter difference than the severe HA groups (severe treated group and severe untreated group) (1.50 ± 0.48 mm, 95%CI, 0.56–2.44 mm) (*p < 0.05). Error bars indicated the standard deviations of the mean values

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