| 摘要 |
A modular hip prosthesis (10), comprising: (a) a proximal segment (12) including a neck (20) lockingly engageable with a femoral head component and a male tapered portion (25); (b) a distal segment (16) having a proximal end (16a) and a distal tip (16b), the distal segment (16) further formed with a male tapered portion (43) adjacent the proximal end (16a) thereof; and (c) a metaphyseal segment (14) having a proximal end (14a) and a distal end (14b), the metaphyseal segment (14) preferably including a bone engaging outer surface portion, and further including an axial bore therethrough (27), the axial bore (27) including first (27a) and second (27c) female tapered portio ns formed adjacent the proximal (14a) and distal (14b) ends thereof, respectively. The first female tapered portion (27a) of the metaphyseal segment (14) is dimensionally configured to lockingly engage the male tapere d portion of the proximal segment. The second female tapered portion of the metaphyseal segment is dimensionally configured to lockingly engage the male tapered portion (43) of the distal segment (16). Optionally, a screw (18) dimensionally configured to pass through aligned bores (27) in the proximal (12), metaphyseal (14) and distal (16) segments is threadably engaged with a threaded bore (42) formed in the proximal end (16a) of the distal segment (1 6).
|
