INSTRUMENTS AND METHODS FOR MANIPULATING VERTEBRA
A method for manipulating a vertebra includes connecting a first bone anchor to a first vertebra, connecting a second bone anchor to a second bone anchor, positioning a spinal rod in a receiving member of the first bone anchor and in a receiving member of the second bone anchor, connecting a first instrument to the receiving member of the first bone anchor, and manipulating the first instrument to rotate first bone anchor and the first vertebra relative to the second vertebra.
1 . A system for manipulating one or more vertebra, the system comprising:
a first instrument having a distal end configured to engage a first bone anchor connected to a first vertebra,
a second instrument having a distal end configured to engage a second bone anchor connected to a second vertebra, and
a connector connecting the first instrument and the second instrument, the connector including a first receiving element for receiving the first instrument and a second receiving element for receiving the second instrument, wherein the connector comprises a first arm pivotably connected to second arm, the connector being movable between an open position in which a first end of the first arm is separated from a first end of the second arm and a closed position in which the first end of the first arm is coupled to the first end of the second arm,
wherein the first receiving element is configured to permit polyaxial motion of the first instrument relative to the first receiving member, and the second receiving element is configured to permit polyaxial motion of the second instrument relative to the second receiving member so that the connector connects the first instrument and the second instrument forming different angles relative to the connector.
2 . The system of claim 1 , wherein the first receiving element is adjusted relative to the second receiving element to facilitate connection of the first instrument to the first receiving element and the second instrument to the second receiving element.
3 . The system of claim 1 , wherein the connector further comprises a latch for coupling the first end of the first arm to the first end of the second arm.
4 . The system of claim 1 , wherein at least one of the first arm and the second arm comprises a plurality of teeth for engaging a plurality of teeth on the first receiving element.