Systems and methods for a spinal surgical procedure are described. Specifically systems and methods for calculating global spinal alignment are described.

A transverse coupling for connecting multiple implant extensions includes at least a first sleeve and a second sleeve. The first sleeve defines a first aperture adapted to axially receive a first implant extension through the first aperture. The second sleeve defines a second aperture adapted to axially receive a second implant extension through the second aperture. The transverse coupling also includes a central housing. A first shaft connects the first sleeve to the central housing, and a second shaft connects the second sleeve to the central housing. The central housing includes at least one joint for connecting the central housing to at least one of the first and second shafts in a movable arrangement that allows the shaft(s) to move through one or more degrees of freedom relative to the central housing.

A method of manufacturing a surgical implant includes simultaneously forming a first component and a second component of the surgical implant. Formation of the first and second components includes depositing a first quantity of material to a building platform and fusing the first quantity of material to form a first layer of the first and second components. The method of manufacturing also includes depositing a second quantity of material over the first layer of the first and second components and fusing the second quantity of material to form a second layer of the first and second components. The surgical implant is fully assembled upon the completion of the formation of the first and second components.

Systems, methods, and devices for securing a sublaminar band are provided. A sublaminar band clamp system may include a first locking mechanism, a second locking mechanism, and a body. The body may include a first portion comprising a first passage, wherein the first locking mechanism is disposed within the first passage. The body may further include a second portion comprising a second passage, wherein the second locking mechanism is disposed within the second passage. A third passage may extend across the body and may be in fluid communication with the second passage. An opening may be positioned between the first and second portions, and the opening may be in fluid communication with the first passage.

Systems, methods, and devices for securing a sublaminar band are provided. A sublaminar band clamp system may include a first locking mechanism, a second locking mechanism, and a body. The body may include a first portion comprising a first passage, wherein the first locking mechanism is disposed within the first passage. The body may further include a second portion comprising a second passage, wherein the second locking mechanism is disposed within the second passage. A third passage may extend across the body and may be in fluid communication with the second passage. An opening may be positioned between the first and second portions, and the opening may be in fluid communication with the first passage.

A reinforcement cap for use with pedicle screws and rod receptacles (“tulips”) in spinal support systems. The unitary reinforcement cap engages both the internal and the external surfaces of the wall segments of the rod receptacle. In some embodiments, both the internal and the external surfaces are threadably engaged. By doubling the number of threads that are engaged, additional strength and structural integrity are realized over conventional set screw arrangements. Also, because of the unitary construction, wherein an internal set screw portion and an external skirt portion are integral to the reinforcement cap, lateral movement between the set screw portion and the skirt portion is limited. In some embodiments, the threads are of a canted cantilever construction, wherein the interfaces of threadably engaged components are tailored to generate reaction force vectors that mitigate slippage at the threaded interfaces.

A transverse connector includes a cross member assembly, a first connector assembly, and a second connector assembly. The cross member assembly includes a cross member, a first ring, and a second ring. The cross member has a first end portion and a second end portion. The first ring is receivable on the first end portion of the cross member and the second ring is receivable on the second end portion of the cross member. The first and second connector assemblies are coupled to the first and second rings of the cross member assembly, respectively, to support the cross member between the first and second connector assemblies. The first and second connector assemblies are configured to selectively and releasably secure to bone anchors.

Implants with grip grooves are disclosed herein. In some embodiments, an implant includes a rod-receiving recess defining a rod axis where an inner surface of the rod-receiving recess defines two grip grooves extending parallel to each other and the rod axis. Each grip groove defines two edges where the grip groove intersects the inner surface, the four edges of the two grip grooves together defining a circular radius about the rod axis. The implant includes a retaining member configured to move with respect to the body to apply a force against a rod that is perpendicular to the rod axis, the force engaging the rod against the four edges of the grip grooves, where the engagement of the four edges of the grip grooves against the rod restrains rotational movement of the rod about the rod axis.

Systems, assemblies, components and methods for correcting alignment of one or more vertebrae of a spine are provided. A first elongate derotator member includes a first elongate element having a first proximal end portion and a first distal end portion. The first distal end portion is releasably engageable with a first implant implanted in one of the vertebrae. A second elongate derotator member comprising a second elongate element is releasably engageable with a second implant implanted in the same vertebra. A transverse member is engageable with the first and second elongate elements. A first channel extends axially through the first elongate element and a second channel extends axially through the second elongate element such that a proximal end portion of the first implant can be accessed from a proximal end portion of the first elongate element by inserting a tool through the first channel and a proximal end portion of the second implant can be accessed from a proximal end portion of the second elongate element by inserting the tool or another tool through the second channel.

A posterior vertebral plating system comprising a plate and a plurality of attachment members. The plate has a plurality of holes extending through the plate from an upper surface to a lower surface, and the plate is configured to extend along the posterior side of at least two vertebrae adjacent at least one boney structure of each of the vertebrae. The holes are spaced in such a way that a first plurality of holes is positionable over a boney structure of a first vertebra to define a plurality of fixation points to the first vertebra and a second plurality of holes is positionable over boney structure of a second vertebra to define a plurality of fixation points to the second vertebra. The attachment members are insertable through the holes of the plate and into the boney structure of a corresponding vertebra to fix the plate to the vertebra.