[Use of holographic interferometry in experimental biomechanics].

Deformation measurements by means of holographic interferometry are of special interest in the fields of osteosynthesis and endoprosthesis research. For osteosynthesis with compression plates holography gives immediately information about the patterns of deformation and thus, the conduction of forces in the system plate-screws fixed to the bone. The mechanical reaction of bone to the design of hip endoprosthesis stems under load can be made visible and in both cases quantitative information is given by calculating the lines of bending.