Abstract: An adjustable length strut includes two joints, a threaded rod extending between the joints, and a tube adapted to receive the threaded rod. An actuation mechanism with gear teeth extending radially outward of the strut axis is rotatably fixed to the threaded rod. A protrusion may be coupled to an end of the threaded rod by a rotatable collar, with the protrusion extending through a slot in the tube to mark the length of the strut. A modular attachment member may be adapted to be couple to the first joint and include a worm gear adapted to engage gear teeth of the actuation mechanism. The modular attachment member may include a radiofrequency identity tag mechanism adapted to be read by a tag reader of a tool, the tool adapted to couple to the attachment member to rotate the worm gear to increase or decrease the effective length of the strut.

Abstract: The present application provides external bone fixation systems. The systems include one or more pairs of bone fixation platforms in the form of rings or partial rings. The platforms may be coupled to corresponding bone segments. The pair of platforms are configured to accept a plurality of struts extending therebetween. The struts are configured to attach to the platforms via joints that provide three degrees of rotation. The struts are also configured such that their longitudinal length extending between the joints/platforms can be incrementally adjusted while attached to the platforms. The struts are further configured such that their total range of length adjustment can be increased by coupling at least one add-on component to the struts in situ. The lengths of each of the plurality of struts may be adjusted to arrange the platforms, and thereby the bone segment coupled thereto, in particular relative positions and orientations.

Abstract: A polyaxial bone anchoring device includes a bone anchoring element having a head, a receiving part having a channel for receiving a rod and an accommodation space for pivotably holding the head, and a pressure member having a pressure exerting surface and a deformable portion with a free end. The deformable portion is adjustable from a first configuration where a first part of the deformable portion is supported at a first axial position relative to the receiving part while a second part of the deformable portion protrudes further radially into the channel than parts of the deformable portion positioned axially above the second part, to a second configuration where the second part of the deformable portion is deformed radially outwardly and the pressure exerting surface is shifted lower axially to exert pressure on the head while the first part of the deformable portion remains supported at the first axial position.

Abstract: The present invention relates generally to first aid articles and more specifically tourniquets suitable for one handed application. One embodiment of the invention is directed to a tourniquet having a base defining first and second ends. A constricting band is attached to and extends from the first end of the base. A windlass handle is engaged with the constricting band. The constricting band is threaded through a self cinching stepped buckle. A buckle connector includes a hook member that engages the stepped buckle and is partly held in place through urging against a loop of the constriction band.

Abstract: A polyaxial bone anchoring device includes a receiving part with two legs defining a recess for receiving a rod and a pressure member for exerting pressure on a head of a bone anchoring element in the receiving part, the pressure member having an engagement portion. The engagement portion can extend at least partially into a leg and is directly engageable from outside the bone anchoring device to move the engagement portion axially for adjusting the pressure member from a non-locking position where the head is pivotable to a locking position where the head is clamped. When the pressure member is in the locking position and the engagement portion is free from any outside axial forces, a first contact surface of the receiving part cooperates with a second contact surface of the pressure member to hold the pressure member in the locking position.

Abstract: A surgical instrument comprises an outer sleeve including an inner surface that defines a cavity. An inner shaft is fixed with the outer sleeve and extends within the cavity. The inner shaft includes a drive engageable in a torque interface with a first mating surface of a bone fastener. An inner sleeve is disposed between the inner shaft and the outer sleeve. The inner sleeve is axially fixed and rotatable relative to the outer sleeve. The inner sleeve includes an element connectable in a connection interface with a second mating surface of the bone fastener. Systems, spinal implants and methods are disclosed.

Abstract: A minimally invasive system for retraction, compression and distraction includes a tap having a shaft with threads and a head, a blade having a proximal end and a distal end and a base removably mountable to the proximal end. The tap is configured to form screw threads in a bone. The distal end is mountable to the head. The blade is pivotable relative to the head in a mounted configuration. The blade is configured to facilitate soft tissue retraction in the mounted configuration. The base is configured to manipulate the blade to retract and compress segments of the bone. The base is configured to provide distraction and/or compression using the provisional taps either directly or through the use of blades, insertion devices or tubes. The blades may be used to retract tissue and provide a visual field either independent or in conjunction with the provisional taps, insertion devices or tubes.

Abstract: An orthopedic instrument for insertion of an orthopedic device into an intramedullary canal of a bone is disclosed. The orthopedic instrument can include an elongate post and a stud. The post can have a longitudinal axis and can extend along the longitudinal axis between a first end portion and a second end portion. The stud can be connected to the post along a portion of a longitudinal length thereof comprising a first end part, A second part of the stud can be free to elastically deflect laterally with respect to the longitudinal axis when subjected to a bending load and return to a first position when unloaded.

Abstract: Systems and methods for retractor interference avoidance is provided. At least one retractor includes a base and one or more elongate members extending from the base. The one or more elongate members are movable. A position of the at least one retractor may be determined and a trajectory of a surgical device may be received. At least one elongate member of the one or more elongate members positioned to interfere with movement of the device along a trajectory may be identified based on the position of the retractor and the trajectory of the surgical device.

Abstract: A dynamization device includes a first module and a second module. The first and second modules are each rigidly affixed to and mated together by one or more deformable rings. Each of the first and second modules includes an inner column positioned within the one or more deformable rings. The mated first and second modules form a first displacement gap between the inner column of the first module and the inner column of the second module. The first displacement gap extends along the longitudinal axis between adjacent deformable rings of the one or more deformable rings.

Abstract: An orthopedic implant which generally includes a frame structure and a porous structure. Both the frame and porous structure at least partially define at least six surfaces which make a three-dimensional profile of the implant. The porous structure is positioned at least partially within the three-dimensional profile.

Abstract: Apparatus and method for securely fixating an anterior portion of a calcaneus to a reduced posterior facet portion of the calcaneus, using a plate that may allow for stable fixation between the anterior calcaneus, the reconstructed posterior facet, and the posterior tuberosity, and a barrel that may be rotated into the best position to allow posterior screws to enter the best quality bone in the posterior tuberosity. The appropriate height may be set by rotating a push screw, thereby engaging the barrel, and pushing the posterior tuberosity distally.

Abstract: A curved expandable interbody device for placement between vertebrae having an upper structure, a lower structure, and a screw mechanism, wherein actuation of the screw mechanism moves the upper and lower structures between a collapsed configuration and an expanded configuration. A deployment tool couples to the curved expandable interbody device for positioning the device between adjacent vertebrae and actuating the screw mechanism, wherein the deployment tool can lock to the curved expandable interbody device and pivot relative to the curved expandable interbody device.

Abstract: A flexible tubular member for guiding insertion of instrumentation to a bone screw affixed within bone includes a tubular body that is flexible, constructed of textile material, and defines a longitudinal axis. The tubular body also defines a proximal end and a distal end opposite each other along the longitudinal axis. The tubular body further defines a guide channel that extends from a proximal opening at the proximal end to a distal opening at the distal end. An attachment member is located at the distal end of the tubular body and is configured to couple the distal end to a proximal portion of the bone screw. The attachment member has an annular shape around the guide channel and is configured to expand responsive to a predetermined tensile force applied to the tubular body for decoupling from the bone screw.

Abstract: Embodiments herein are generally directed to spinal implants for use in orthopedic stabilization assemblies. In some embodiments, these implants may be used in conjunction with laminoplasty or laminectomy procedures.

Abstract: Methods of orthopedic fixation and imagery analysis are provided. Images of first and second bone segments attached to a fixation apparatus are captured. Fixator elements identified in the images can be used to obtain imaging scene parameters. Bone elements identified in the images can be used with the imaging scene parameters to reconstruct a three dimensional representation of positions and/or orientations of the first and second bone segments with respect to the fixation apparatus.

Abstract: A system to stabilize and guide the growth of the spinal column includes an elongated support member having a width and a length and a guiding connector having a bone connecting portion and a guiding portion. The bone connecting portion secures the guiding connector to a vertebrae and the guiding portion has a bearing element with a passageway adapted to receive the elongated support member. The bearing element permits relative sliding movement of the elongated support element in the passageway of the bearing element. The system may further include a bone fixation element has an elongated support member receiving channel, a locking mechanism and a bone anchoring portion. The bone anchoring portion secures the bone fixation element to bone. The locking mechanism secures the elongated support member in the channel. The guiding connector is moveable along the elongated support member to permit and control the growth of the spinal column along a predetermined path.

Abstract: An orthopaedic device for securing between first and second regions of bone separated by a growth plate, the orthopaedic device comprising: a first portion to secure to a first fixing location on the first bone region; a second portion to secure to a second fixing location on the second bone region, the first fixing location and the second fixing location being laterally offset relative to a longitudinal axis of the bone; wherein the first and second portions are pivotally coupled between a first coupling location on the first portion and a second coupling location on the second portion such that movement of the first and second portions away from each other in a direction parallel to the longitudinal axis of the bone causes relative rotation of the first bone region and the second bone region thereby reducing the lateral offset of the first location and the second location.

Abstract: A system for interconnecting bones includes an implantable member configured to be mechanically coupled to a first bone, configured to be mechanically coupled to a second bone, configured to provide substantially no resistance to compression of the implantable member, configured to support a tensile load within a predetermined range of tensile loads extending from a first load to a second load, configured to have a predetermined elasticity within the range of tensile loads, configured to have a first characteristic at the first load, and configured to have a second characteristic at the second load. The system also includes a means for measuring the first characteristic and the second characteristic. And the system includes a means for calculating a tension between the first bone and the second bone based on the first characteristic and the second characteristic.

Abstract: Implants, systems, and methods of reverse dynamization. The implants, such as expandable spinal implants, bone plates, and intramedullary nails, are securable to bone. The implant may have a moveable component creating a semi-rigid configuration to allow for micro-motion of the bone for a period of time. The moveable component is changeable, for example, based on material properties, change of state, or mechanical or electrical operation, to a static condition creating a rigid configuration to prevent subsequent movement of the bone. The reverse dynamization implants may be used to accelerate bone healing and obtain superior bone fracture healing.