Impact of loss of bone marrow on blood formation/RGB count

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Femurs are the largest bone in the body, possessing largest chunk of bone marrow which is responsible for production of significant percentage  of RGB/Hemoglobin present in the body. Doing internal femurs would take away a good amount of bone marrow so would it not affect blood formation and cause issues such as anaemia/lower blood count? Do people with internal rods in their bones  face such issues? How does body compensate for such loss f bone marrow?

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E-mail Paley about that.

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I know the source from google so I came to study.