FLUTED-WEDGE OSTEAL PROSTHETIC COMPONENT

摘要

2112114 9301770 PCTABS00019 An osteal prosthetic component (10) of a prosthetic joint and a method of implanting an osteal prosthetic component (10) in the medullary canal (32) of a bone (30) are disclosed. The osteal prosthetic component (10) includes a stem (28) for disposition within a medullary canal (32) of a bone (30) and a fluted wedge (44) portion extending from the stem (28). The fluted wedge (44) has wedge portions (48) which define at least one flute (50) between the wedge portions (48). An interference fit is formed between the wedge portions (48) and the bone (30) during implantation of the stem (28) into the medullary canal (32). Movement of the osteal prosthetic component (10) relative to the bone (30) is thereby sufficiently limited to allow tissue growth into a tissue-ingrowth portion (42) at the surface of the stem (28) to substantially prevent micromotion of the stem (28) relative to the bone (30).