Bone marrow cell content and osteoclasts in crista biopsies.

The bone marrow cell content was investigated by counting the percentage of cells in the areas between the trabeculae in crista biopsies. There was a decrease in the percentage of cells in bone marrow in osteoporotic women compared with our normal material. In patients undergoing haemodialysis there was a positive correlation between bone marrow cell content and osteoclasts, which could indicate a possible connection between osteoclasts and bone marrow cells.