Abstract: Various multiaxial receivers for receiving at least one tether are disclosed. A multiaxial receiver may include a body having a U-shaped cavity configured to receive a longitudinal rod therein and a lower cavity configured to couple to a pedicle screw. The body may include a first aperture extending through a side surface of the body and defining a first passageway configured to permit a tether to pass therethrough in the horizontal direction. In some embodiments, the body may include a second aperture extending through the side surface of the body and defining a second passageway configured to permit the tether to pass therethrough in the horizontal direction. A set screw may be configured to be rotated from an open position in which the tether is permitted to pass through the first passageway and optionally through the second passageway to a closed position in which the tether is immobilized.

Abstract: A multiaxial receiver may include a body having a U-shaped cavity configured to receive a longitudinal rod therein and a lower cavity configured to couple to a pedicle screw. The multiaxial receiver may include a first passageway configured to permit a tether to pass therethrough in the vertical direction. In some embodiments, the multiaxial receiver may also include a second passageway configured to permit a tether to pass therethrough in the horizontal direction. An immobilization assembly including a set screw and a wedge may immobilize the tether. The immobilization assembly may be configured to be rotated from an open position in which the tether is permitted to pass through the first passageway to a closed position in which the tether is immobilized within the first passageway or second passageway by pining the tether against a bearing surface of the first passageway.

Abstract: A spinal-correction system having (i) a receiver including a base and opposing arms extending proximally from the base forming a rod-receiving cavity, (ii) a pair of extender tabs, each extender tab having threaded inner walls for receiving threads of a setscrew, (iii) a pair of tab extenders each being connectable releasably to one of the extender tabs, (iv) a cap instrument connectable releasably to the tab extenders, and (v) a pair of breakoff sections, each connecting one of the extender tabs to one of the receiver arms, and each being readily breakable for separating the extender tab from the receiver arm. The distal base defines a bonescrew cavity to receive a bonescrew head so that the head can move relative to the base. Each receiver arm has threaded inner walls for receiving setscrew threads. The rod-receiving cavity has geometry corresponds to geometry of the setscrew and a spinal-correction rod.

Abstract: A spinal-correction system having (i) a receiver including a base and opposing arms extending proximally from the base forming a rod-receiving cavity, (ii) a pair of extender tabs, each extender tab having threaded inner walls for receiving threads of a setscrew, (iii) a pair of tab extenders each being connectable releasably to one of the extender tabs, (iv) a cap instrument connectable releasably to the tab extenders, and (v) a pair of breakoff sections, each connecting one of the extender tabs to one of the receiver arms, and each being readily breakable for separating the extender tab from the receiver arm. The distal base defines a bonescrew cavity to receive a bonescrew head so that the head can move relative to the base. Each receiver arm has threaded inner walls for receiving setscrew threads. The rod-receiving cavity has geometry corresponds to geometry of the setscrew and a spinal-correction rod.

Abstract: An extender comprises an inner member including a wall defining a thread form and at least one extension defining a first axial cavity and a second axial cavity, each cavity including first, second and third portions. An outer member includes an actuator and at least one arm having projections disposable with the portions of the axial cavities. The actuator is rotatable to axially translate the inner member such that the projections are disposable between a first position, a second position and a third position. Methods of use are disclosed.

Abstract: An extender includes a first arm defining a first longitudinal axis and including a first extension and a second extension. The first extension includes an outer surface and a projection extending from the outer surface, the projection including a ramp and a first locking element. The first extension includes an inner surface defining a longitudinal cavity. The projection is transversely moveable between a first configuration such that the projection extends beyond the outer surface and a second configuration whereby the second extension axially translates within the longitudinal cavity and engages the ramp such that the projection is disposed in alignment with the outer surface and the first locking element engages an implant. Methods of use are disclosed.

Abstract: A spinal implant system includes a first member comprising walls that include a first end surface defining a first locking cavity, a second end surface and an outer surface extending therebetween. A second member includes a first arm having an inner surface that defines a first cavity and a second arm having an inner surface that defines a second cavity. The inner surface of the first arm includes a first projection disposable in the first cavity and the inner surface of the second arm includes a second projection disposable in the second cavity. A third member includes a first extension having an inner surface that defines a first cavity and a second extension having an inner surface that defines a second cavity. The third member is configured for axial translation relative to the second member between a first orientation and a second orientation. Methods of use are disclosed.

Abstract: An extender comprises a first extension including a first wall and extending between a proximal end and a distal end. The first wall defines an axial cavity including a distal portion, at least one ramp and a proximal portion. A second extension includes a projection. The projection is disposable in a first position with the distal portion of the axial cavity and the distal end of the first extension is disposed in a non-expanded orientation. The projection is slidably engageable with the at least one ramp for movement to a second position such that the projection is disposed with the proximal portion of the axial cavity and the distal end of the first extension is disposed in an expanded orientation. Methods of use are disclosed.

Abstract: An extender comprises a first extension including a first wall and extending between a proximal end and a distal end. The first wall defines an axial cavity including a distal portion, at least one ramp and a proximal portion. A second extension includes a projection. The projection is disposable in a first position with the distal portion of the axial cavity and the distal end of the first extension is disposed in a non-expanded orientation. The projection is slidably engageable with the at least one ramp for movement to a second position such that the projection is disposed with the proximal portion of the axial cavity and the distal end of the first extension is disposed in an expanded orientation. Methods of use are disclosed.

Abstract: An extender comprises an inner member including a wall defining a thread form and at least one extension defining a first axial cavity and a second axial cavity, each cavity including first, second and third portions. An outer member includes an actuator and at least one arm having projections disposable with the portions of the axial cavities. The actuator is rotatable to axially translate the inner member such that the projections are disposable between a first position, a second position and a third position. Methods of use are disclosed.

Abstract: A spinal implant system includes a first member comprising walls that include a first end surface defining a first locking cavity, a second end surface and an outer surface extending therebetween. A second member includes a first arm having an inner surface that defines a first cavity and a second arm having an inner surface that defines a second cavity. The inner surface of the first arm includes a first projection disposable in the first cavity and the inner surface of the second arm includes a second projection disposable in the second cavity. A third member includes a first extension having an inner surface that defines a first cavity and a second extension having an inner surface that defines a second cavity. The third member is configured for axial translation relative to the second member between a first orientation and a second orientation. Methods of use are disclosed.

Abstract: An extender includes a first arm defining a first longitudinal axis and including a first extension and a second extension. The first extension includes an outer surface and a projection extending from the outer surface, the projection including a ramp and a first locking element. The first extension includes an inner surface defining a longitudinal cavity. The projection is transversely moveable between a first configuration such that the projection extends beyond the outer surface and a second configuration whereby the second extension axially translates within the longitudinal cavity and engages the ramp such that the projection is disposed in alignment with the outer surface and the first locking element engages an implant. Methods of use are disclosed.

Abstract: A spinal surgical system includes at least one extender mounted to an anchor engaged to the spinal column. The extender extends proximally away from the anchor to a proximal end outside the patient. The extender is configured to receive a connecting member from an approach that is generally parallel or along the longitudinal axis of the extender so that the connecting member can be positioned from the proximal end of the extender to the anchor at the distal end of the extender without requiring an additional incision or puncture to accommodate the connecting member insertion.

Abstract: An assembly for tissue retraction in surgery includes a pair of arm members removably positioned on and movable along an elongate support member. The arm members each include an external housing, a locking member positioned within the external housing and a passageway extending through the external housing and the locking member. The elongate support member extends through the passageways and the locking members are releasably biased into engagement with the elongate support member to allow the arm members to move in opposite directions along the elongate support member and prevent the arm members from moving toward one another. Each arm member further includes a rotatable engagement portion engageable with a respective retractor portion and a locking element releasably biased into engagement with the engagement portion to limit rotation of the engagement portion to a first direction relative to the arm member.

Abstract: An assembly for tissue retraction in surgery includes a pair of arm members removably positioned on and movable along an elongate support member. The arm members each include an external housing, a locking member positioned within the external housing and a passageway extending through the external housing and the locking member. The elongate support member extends through the passageways and the locking members are releasably biased into engagement with the elongate support member to allow the arm members to move in opposite directions along the elongate support member and prevent the arm members from moving toward one another. Each arm member further includes a rotatable engagement portion engageable with a respective retractor portion and a locking element releasably biased into engagement with the engagement portion to limit rotation of the engagement portion to a first direction relative to the arm member.

Abstract: A spinal surgical system includes at least one extender mounted to an anchor engaged to the spinal column. The extender extends proximally away from the anchor to a proximal end outside the patient. The extender is configured to receive a connecting member from an approach that is generally parallel or along the longitudinal axis of the extender so that the connecting member can be positioned from the proximal end of the extender to the anchor at the distal end of the extender without requiring an additional incision or puncture to accommodate the connecting member insertion.

Abstract: Devices for measuring the parameters of an intervertebral disc space are provided. The devices may comprise one or more flexible internal members positioned in an axially concentric bore of a longitudinal element. When activated, the flexible internal member(s) may protrude out of one or more apertures in the longitudinal element and impinge on an adjacent surface of the intervertebral disc space. The device may be useful to determine at least one dimension of an intervertebral disc space.

Abstract: A system for flexibly stabilizing a vertebral column in tensile and compressive loading by connecting a first and a second vertebrae includes first means for connecting to the first vertebra and second means for connecting to the second vertebra. A flexible connector is configured to extend from and connect the first means to the second means. The flexible connector may include first and second apertures for respectively attaching to the first and second means for connecting. Each aperture may include a reinforcement member therein.

Abstract: A system and method for executing a participating application from media coupled to a computing device. The participating application may be executed automatically or manually. When the application is executed, a task disk control file is read from the removable media. The task disk control file contains all of the configuration information necessary to run the participating application from the coupled media. The participating application is then launched for use by a user. After the user is finished using the participating application, all data files are saved, temporary files deleted and configuration information removed prior to the termination of the application to return the computing device to an original state.

Abstract: A data file mirroring application that monitors data files stored in a source directory for archiving to at least two other backup data storage locations. Preferably, one of these backup data storage locations is on the Internet. The other may be a local data storage location, meaning a location that the host computer can access without using the Internet, e.g., a floppy drive, hard drive, high-density storage medium drive, etc. The user interface of the mirroring application flexibly allows the user to specify the source data to be backed up and the two or more backup data storage locations.