IM revision tools include reamers with depth markings or stops, an impactor-extractor with a coupling for attaching to tools which are inserted into and removed from the IM canal, a resection guide tower to which a cutting block is attached and which includes a notch which serves as both a witness mark...http://www.google.fr/patents/US6258095?utm_source=gb-gplus-shareBrevet US6258095 - Methods and tools for femoral intermedullary revision surgery
Methods and tools for femoral intermedullary revision surgery