An anatomical spacer is provided which includes a bladder expandable from
a deflated position to an inflated position. A membrane extends between
opposing surfaces of the bladder, and an inflation port is placed in
communication with the bladder. The inflation port is configured to
receive inflation media to fill the bladder from the deflated position to
the inflated position. A method is also provided to deploy the spacer
into an anatomical location from a cannula.