Systems and method in accordance with an embodiment of the present
invention can includes an implant comprising a spacer and a frame having
a central body and a helical shaped wing extending from the central body.
The frame can be positioned near about adjacent spinous processes, and
can be rotated and urged so that the adjacent spinous processes pass
within a groove of the wing, thereby allowing the wing to be arranged on
an opposite side of the adjacent spinous processes. The spacer can then
be arranged over the frame so that the spacer contacts and distracts the
spinous processes, thereby limiting relative movement of the adjacent
spinous processes during extension.