| 摘要 |
The present invention provides a highly polished femoral implant (1) having a proximal neck portion (10), a distal tip portion (30), and an elongate stem portion (20) that extends from the neck portion to the tip portion. The stem portion (20) has a proximal or metaphyseal end region (21) which adjoins the neck portion (10), the proximal/metaphyseal end region (21) having a profile in the medio-lateral plane defined by a curved or angled medial outer contour and a curved or straight lateral outer contour. The stem portion (20) of the implant has a first part (24) adjacent said end region (21) having a profile in the medio-lateral plane which tapers distally at a first angle of taper to a region intermediate the length of the stem portion, and a second part (25,26) distal of the first part (24) having a profile in the medio-lateral plane which tapers distally at a second angle of taper from the region intermediate the length of the stem portion.
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