WENTORF, MARY S.S.,BISCHOFF, JEFFREY E.,RETTIG, KATHERINE M.,PARISI, RAYMOND C.
申请号：
CA2806321
公开号：
CA2806321C
申请日:
2011.07.22
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
An orthopaedic tibial prosthesis (10) includes a tibial baseplate (12) with an asymmetric periphery (200) which promotes proper positioning and orientation on a resected tibia, while also facilitating enhanced kinematics, soft- tissue interaction, and long-term fixation of the complete knee prosthesis. The asymmetric baseplate periphery is sized and shaped to substantially match portions of the periphery of a typical resected proximal tibial surface, such that proper location and orientation is evident by resting the baseplate on the tibia. The baseplate periphery provides strategically positioned relief and/or clearance between the baseplate periphery and bone periphery, such as in the posterior-medial portion to prevent deep- flexion component impingement, and in the anterior- lateral portion to avoid undue interaction between the anatomic iliotibial band and prosthesis components.
