Fig. 3From: The local concentration of Ca2+ correlates with BMP7 expression and osseointegration in patients with total hip arthroplastyTRAP staining was used to observe the activity of osteoclasts in hip joint tissues of patients with osteoarthritis (a) and femoral neck fracture (b). Scale bars: μm. c Serum TRACP5b levels were detected by ELISA in patients with osteoarthritis and femoral neck fracture before or after THA. *P < 0.05; ***P < 0.001. P < 0.05 were considered significantBack to article page