[Bone biopsy of the iliac crest. Technics of embedding in methacrylate and quantitative readings. Results of 2 years' experience].

The authors report their experience with a method for the study of undecalcified bone embedded in a compound of methacrylate allowing various types of staining procedures. They review the methods of semi-quantitative study of the bone activity and point out their interest in diffuse involvement of the skeleton.