A reamer system is provided which includes a cannulated reamer holder, and a corresponding cannulated reamer, which, when assembled and operated over a drill pin secured in a manner axially aligned with the stem of the femoral joint, enables the accurate and controlled reshaping of the femoral joint....http://www.google.fr/patents/US8057477?utm_source=gb-gplus-shareBrevet US8057477 - Guided reamer system for reshaping bone
