Chirurgisches Instrument

摘要

A surgical instrument (20) having an anchoring member (22) and an instrument body (36) which is adjustably repositionable relative to the anchoring member (22). At least one reference element (100) may be mounted on the instrument body (36) to facilitate the registration of the instrument body (36) in a computer implemented image guidance system. The reference element (100) may be three non-linearly positioned elements (114) disposed on a removably mountable member. The anchoring member (22) may be secured to an anatomical structure using an image guidance system. The instrument body (36) may then be selectively adjusted with respect to the anchoring member (22) and anatomical structure after securing the anchoring member (22) with the anatomical structure. The selective repositioning adjustment of the instrument body (36) on the anatomical structure may also employ a computer implemented image guidance system. The instrument may be used in the resection of a femur when implanting a prosthetic knee joint.