Abstract: Implementations of the present disclosure provide an access tube including a wall structure and an optional handle extending from the wall structure. Selectively weakened areas facilitate selective resection of the wall structure to reveal windows that accommodate lateral intrusions by surrounding anatomical structures and/or provide increased access to an intervertebral disc. For example, a first distal weakened portion is configured to form a first window to afford lateral intrusion of a spinous process. A second distal weakened portion is configured to form a second window to afford lateral intrusion of facet. A proximal weakened portion is configured to afford additional angular access on a proximal end of the tube.

Abstract: A spinal alignment correction system (1) has a posted lumbar pedicle screw called a MAC Pin (10) which has an elongated shaft (11) and a rod coupler assembly (20) and a cannulated tower (40). The elongated shaft (11) has an inner pedicle screw portion (12) with pedicle threads (12A), an outer second thread portion (14) with second threads (14A) and a transition or intermediate portion (16) disposed between the pedicle screw portion (12) and the second thread portion (14). The cannulated tower (40) when mounted over said elongated shaft (11) abuts said coupler (20) along an outer cam surface and further tightening rotation of the cannulated tower (40) causes outward movement of the elongated shaft (11). The system (1) allows for a controlled alignment correction of malaligned vertebral bodies using a number of methods used to correct a variety of indications.

Abstract: A spinal alignment correction system (1) has a posted lumbar pedicle screw called a MAC Pin (10) which has an elongated shaft (11) and a rod coupler assembly (20) and a cannulated tower (40). The elongated shaft (11) has an inner pedicle screw portion (12) with pedicle threads (12A), an outer second thread portion (14) with second threads (14A) and a transition or intermediate portion (16) disposed between the pedicle screw portion (12) and the second thread portion (14). The cannulated tower (40) when mounted over said elongated shaft (11) abuts said coupler (20) along an outer cam surface and further tightening rotation of the cannulated tower (40) causes outward movement of the elongated shaft (11). The system (1) allows for a controlled alignment correction of malaligned vertebral bodies using a number of methods used to correct a variety of indications.

Abstract: A spinal alignment correction system (1) has a posted lumbar pedicle screw called a MAC Pin (10) which has an elongated shaft (11) and a rod coupler assembly (20) and a cannulated tower (40). The elongated shaft (11) has an inner pedicle screw portion (12) with pedicle threads (12A), an outer second thread portion (14) with second threads (14A) and a transition or intermediate portion (16) disposed between the pedicle screw portion (12) and the second thread portion (14). The cannulated tower (40) when mounted over said elongated shaft (11) abuts said coupler (20) along an outer cam surface and further tightening rotation of the cannulated tower (40) causes outward movement of the elongated shaft (11). The system (1) allows for a controlled alignment correction of malaligned vertebral bodies using a number of methods used to correct a variety of indications.

Abstract: A spinal alignment correction system (1) has a posted lumbar pedicle screw called a MAC Pin (10) which has an elongated shaft (11) and a rod coupler assembly (20) and a cannulated tower (40). The elongated shaft (11) has an inner pedicle screw portion (12) with pedicle threads (12A), an outer second thread portion (14) with second threads (14A) and a transition or intermediate portion (16) disposed between the pedicle screw portion (12) and the second thread portion (14). The cannulated tower (40) when mounted over said elongated shaft (11) abuts said coupler (20) along an outer cam surface and further tightening rotation of the cannulated tower (40) causes outward movement of the elongated shaft (11). The system (1) allows for a controlled alignment correction of malaligned vertebral bodies using a number of methods used to correct a variety of indications.

Abstract: A spinal alignment correction system (1) has a posted lumbar pedicle screw called a MAC Pin (10) which has an elongated shaft (11) and a rod coupler assembly (20) and a cannulated tower (40). The elongated shaft (11) has an inner pedicle screw portion (12) with pedicle threads (12A), an outer second thread portion (14) with second threads (14A) and a transition or intermediate portion (16) disposed between the pedicle screw portion (12) and the second thread portion (14). The cannulated tower (40) when mounted over said elongated shaft (11) abuts said coupler (20) along an outer cam surface and further tightening rotation of the cannulated tower (40) causes outward movement of the elongated shaft (11). The system (1) allows for a controlled alignment correction of malaligned vertebral bodies using a number of methods used to correct a variety of indications.

Abstract: Implementations of the present disclosure provide an access tube including a wall structure and an optional handle extending from the wall structure. Selectively weakened areas facilitate selective resection of the wall structure to reveal windows that accommodate lateral intrusions by surrounding anatomical structures and/or provide increased access to an intervertebral disc. For example, a first distal weakened portion is configured to form a first window to afford lateral intrusion of a spinous process. A second distal weakened portion is configured to form a second window to afford lateral intrusion of facet. A proximal weakened portion is configured to afford additional angular access on a proximal end of the tube.