Spinal implant system and method

摘要

An extender comprises a first extension including a first wall and extending between a proximal end and a distal end. The first wall defines an axial cavity including a distal portion, at least one ramp and a proximal portion. A second extension includes a projection. The projection is disposable in a first position with the distal portion of the axial cavity and the distal end of the first extension is disposed in a non-expanded orientation. The projection is slidably engageable with the at least one ramp for movement to a second position such that the projection is disposed with the proximal portion of the axial cavity and the distal end of the first extension is disposed in an expanded orientation. Methods of use are disclosed.

主权项

1. An extender comprising:
a first extension including a first wall and extending between a proximal end and a distal end, the first wall defining an axial cavity including a distal portion having a first dimension, an intermediate portion having at least one ramp and a proximal portion having a second dimension, the first dimension being greater than the second dimension, the distal end including at least one fixation surface; a second extension extending from adjacent the proximal end of the first extension to a distal end of the second extension, the distal end including a projection; and an actuator fixed with the second extension, the proximal end of the first extension including a threaded outer surface, the actuator including an inner surface having a first threaded surface engageable with the threaded outer surface to cause axial translation, wherein the first extension is configured for axial translation relative to the second extension such that the projection is disposable in the axial cavity in a first position such that the projection is disposed with the distal portion of the axial cavity and the distal end of the first extension is disposed in a non-expanded orientation, and the projection is slidably engageable with the at least one ramp for movement to a second position such that the projection is disposed with the proximal portion of the axial cavity and the distal end of the first extension is disposed in an expanded orientation.