[Biological osteosyntheses].

Soft tissue condition and local blood circulation are most important concerning bone reconstruction and healing of fractures. Therefore additional damage of soft tissue caused by operations must be avoided. Using biological osteosynthesis as much stability as necessary and highest possible saving of vascularity should be achieved. Most important and actual techniques will be discussed in this paper. Today's method of choice in long bone shaft fractures is the unreamed interlokked nail. On the contrary exact reposition and minimal fixation with screws and plates is the standard in fractures near the joint to gain exercise stability.