[Means and methods of bone biopsy].

Stress is laid on the usefulness of bone biopsy in rheumatology, endocrinology, haematology, etc. and percussion with a Bartelheimer or Westerman needle, and trapanation are discussed. Preference is expressed for the latter method and it is hoped that instruments capable of giving excellent results will be produced, so that deeper and more exact diagnostic and therapeutic conclusions can be drawn, especially in geriatric medicine.