Fig. 5From: The application of a hollow trephine in femoral retrograde intramedullary nailing techniqueComparison of the amount of bone debris produced by the ordinary solid reamer and a hollow trephine during hole opening in the femur of a pigA: Two types reamers: ordinary solid reamer and hollow trephineB: Many bone debris produced by solid reamer openingC: The hollow trephine produces only little bone debris and a smooth bolt during openingBack to article page