Abstract: Apparatus and methods for measuring spacing between first and second bone screws engaged with first and second bone structures are provided. An apparatus comprises first and second arms operably engaged with a single pivot pin. The first arm includes a distal end adapted to engage the first bone screw, and a proximal end comprising a graduated scale. The second arm, operably engaged with the first arm via the single pivot pin, includes a distal end adapted to engage the second bone screw, and a proximal end comprising an indicator segment slidably engaged with the graduated scale. A position of the indicator segment relative to the graduated scale is therefore indicative of a spacing between the first and second bone screws.

Abstract: A bone fixation element includes a distal end defining a longitudinal axis and being configured to penetrate tissue, a proximal end defining an axial opening disposed in communication with a transverse passageway and a fastener including a proximal portion having spaced apart walls that define an implant cavity and a distal portion disposed with the transverse passageway and configured to penetrate tissue. The distal end is disposable in spaced apart relation to the distal portion of the fastener within tissue. Methods of use are disclosed.

Abstract: A bone fixation element includes a distal end defining a longitudinal axis and being configured to penetrate tissue, a proximal end defining an axial opening disposed in communication with a transverse passageway and a fastener including a proximal portion having spaced apart walls that define an implant cavity and a distal portion disposed with the transverse passageway and configured to penetrate tissue. The distal end is disposable in spaced apart relation to the distal portion of the fastener within tissue. Methods of use are disclosed.

Abstract: Apparatus and methods for measuring spacing between first and second hone screws engaged with first and second bone structures are provided. An apparatus comprises first and second arms operably engaged with a single pivot pin. The first arm includes a distal end adapted to engage the first bone screw, and a proximal end comprising a graduated scale. The second arm, operably engaged with the first arm via the single pivot pin, includes a distal end adapted to engage the second bone screw, and a proximal end comprising an indicator segment slidably engaged with the graduated scale. A position of the indicator segment relative to the graduated scale is therefore indicative of a spacing between the first and second bone screws.

Abstract: Apparatus and methods for measuring spacing between first and second bone screws engaged with first and second bone structures are provided. An apparatus comprises first and second arms operably engaged with a single pivot pin. The first arm includes a distal end adapted to engage the first bone screw, and a proximal end comprising a graduated scale. The second arm, operably engaged with the first arm via the single pivot pin, includes a distal end adapted to engage the second bone screw, and a proximal end comprising an indicator segment slidably engaged with the graduated scale. A position of the indicator segment relative to the graduated scale is therefore indicative of a spacing between the first and second bone screws.

Abstract: A bone fastener includes a proximal member having an inner surface that defines an implant cavity and an outer surface including a first threaded portion configured for penetrating fixation with tissue and a second portion. The proximal member defines a longitudinal axis. An intermediate member includes an inner surface extending between a proximal portion connected with the second portion and a distal portion. A distal member includes an outer surface extending between a proximal portion disposed with the distal portion of the intermediate member and a distal portion configured for penetrating fixation with tissue. The distal member is configured for axial translation relative to the intermediate member. Methods of use are disclosed.

Abstract: A surgical instrument system comprises a first member and a second member. The second member is movable relative to the first member. A sensor is configured to measure a distance between the members and digital indicia representing at least one data element of a spinal implant is selected based on the distance. Systems and methods are disclosed.

Abstract: A surgical guide comprises a frame connected with a first instrument that defines a first axis and extends to a tissue engaging surface. A guide element is connected with the frame and includes an inner surface that defines a passageway. The frame is rotatable relative to the first axis to translate the guide element along a trajectory that intersects the first axis such that an end of the guide element is angularly oriented relative to an orientation of the tissue engaging surface. At least one second instrument and/or at least one implant are movable along the passageway and relative to the inner surface to adjacent the tissue engaging surface. Systems and methods of use are disclosed.

Abstract: A bone fastener includes a proximal member having an inner surface that defines an implant cavity and an outer surface including a first threaded portion configured for penetrating fixation with tissue and a second portion. The proximal member defines a longitudinal axis. An intermediate member includes an inner surface extending between a proximal portion connected with the second portion and a distal portion. A distal member includes an outer surface extending between a proximal portion disposed with the distal portion of the intermediate member and a distal portion configured for penetrating fixation with tissue. The distal member is configured for axial translation relative to the intermediate member. Methods of use are disclosed.

Abstract: A method for treating a spine disorder includes providing a bone fastener including a distal portion and a proximal portion including an axial opening and defining a longitudinal passageway. At least one lateral opening is disposed in communication with the longitudinal passageway. The axial opening is disposed in communication with the longitudinal passageway. The distal portion is engaged with a first vertebral surface. The second vertebral surface is spaced apart from the first vertebral surface. A radiopaque biologic is introduced through the axial opening and into the longitudinal passageway and delivered to a surgical site adjacent the first vertebral surface and the second vertebral surface. Systems for treating a spine disorder are disclosed.

Abstract: A surgical instrument includes a first member extending along a longitudinal axis having a first end configured to mate with a head of a threaded member, the first end having a first configuration such that the first end loosely mates with the head of the threaded member and a second configuration such that the first end tightly mates with the head of the threaded member. The surgical instrument further includes a second member configured to expand the head from the first configuration to the second configuration. Methods of use are disclosed.

Abstract: Apparatus and methods for measuring spacing between first and second bone screws engaged with first and second bone structures are provided. An apparatus comprises first and second arms operably engaged with a single pivot pin. The first arm includes a distal end adapted to engage the first bone screw, and a proximal end comprising a graduated scale. The second arm, operably engaged with the first arm via the single pivot pin, includes a distal end adapted to engage the second bone screw, and a proximal end comprising an indicator segment slidably engaged with the graduated scale. A position of the indicator segment relative to the graduated scale is therefore indicative of a spacing between the first and second bone screws.