| 摘要 |
Apparatus and method are disclosed for maintaining the proper positioning of an implant (310, 504) within a prepared bone cavity (312) during cement injection and curing. First stabilization means (340, 480), implantable within the bone cavity, minimize lateral movement of the implant distal end, while second stabilization means (330, 334, 406, 404), physically separate from the first stabilization means (340, 480), minimize both the lateral movement of the implant proximal end and the rotational movement of the implant overall. In the preferred embodiment, the second stabilization means (330, 334) includes an aperture cap (334) removable securable to the end of a prepared bone. This cap (334), preferably further includes first and second ports (322, 336) associated, respectively, with cement injection and cement over-pressurization. In an alternative embodiment, the second stabilization means (406, 404) includes a manually operated mechanism enabling (404) the implant (504) to be temporarily, yet rigidly, secured thereto in accordance with a desired orientation, preferably affording adjustments along multiple degrees of freedom prior to the rigid securement thereof.
|
