Abstract: A joint decorticator instrument configured for single use. The joint decorticator has a metal rod affixed within a polymer sheath. The polymer sheath has a longitudinal channel configured to receive an alignment protrusion with a working channel for maintaining the joint decorticator in a proper alignment relative to the working channel. The joint decorticator may include an integrated extraction mechanism involves an extraction lever pivotally connected to the handle portion of the polymer sheath. The extraction lever has an eccentric cam mechanism. When the extraction lever is pivoted toward an open position, the cam exerts a force onto a collar of the working channel and an opposite force on the connector pin that pivotally connects the extraction lever to the polymer sheath, thereby dislodging the abrading head of the joint decorticator from the joint.

Abstract: A hand instrument is provided with a handpiece and a scraping blade arranged distally of the handpiece and a chip chamber (30), of which the scraping blade is designed for scraping in particular bones and is arranged in such a way that chips scraped by means of the scraping blade enter the chip chamber and the scraping blade extends in a plane inclined with respect to a longitudinal axis of the handpiece. The handpiece is designed as a handle with three finger rests and a proximal support rest, wherein the three finger rests are inclined to one another in such a way that the three finger rests extend in pairs at an angle of less than 90° to one another in a cross-section through the handpiece.

Abstract: A device for holding a transmitter arrangement in a surgical navigation system has a base part and a fastener insertable into bone. A joint arrangement, which is held on the base part, includes a head, a shaft and a receiving part. The shaft extends away from the head and carries the transmitter arrangement. The head and transmitter arrangement are fixable with respect to the receiver part in a desired orientation. The head has a surface with a plurality of first surface discontinuities. The receiver part has at least one second surface discontinuity configured to mate with each of the first surface discontinuities to fix the head in one of a plurality of orientations. The first surface discontinuities are distributed over the surface of the head in such a way that adjacent orientations are separated by an angle of at most 15°, measured from a center of the head.

Abstract: Interbody spacers are expandable horizontally and vertically by an application of axial force, and lockable in an expanded configuration. The spacers include support members interconnected to end bodies by pivotable link members. The spacers are introduced between vertebral bodies in a compressed configuration and expanded to fill the intervertebral space and provide support and selective lordotic correction. Graft material may be introduced into the expanded spacer. Provisional and/or supplementary locking means lock the spacers in the expanded configuration. Embodiments of the spacers include symmetrically and asymmetrically configured spacers. Methods of expansion include symmetric expansion or asymmetric expansion along each of two directions.

Abstract: An implant device made of an implant grade alloy that includes: an epiphyseal tibial plate section comprising at least three screw holes; a metaphyseal tibial plate section comprising at least three screw holes; and a ligament joining the tibial plate sections that spans a curvilinear tibial cut. The epiphyseal tibial plate section comprises a curvilinear and proximal portion, the curvilinear portion oriented perpendicular to the ligament and comprising a cut-adjacent curvilinear surface, and the proximal portion is perpendicular and extending proximally to the curvilinear portion. The metaphyseal tibial plate section comprises an elongated distal and cranial portion, the cranial portion oriented cranially to the distal portion and perpendicular to the ligament, and the distal portion extending distally from the cranial portion. The widths of the ligament and the proximal portion are greater than the width of each of the curvilinear portion, the elongated distal portion and the cranial portion.

Abstract: A polyaxial bone screw system and method for connecting a longitudinal rod to multiple bones or bone portions. The system may include a bone fastener having a shank and a shank head; a polyaxial body to receive the shank head; and a collet for applying force to exterior surface of the shank head when the collet is acted upon by a rod, which is pressed onto the collet via a set screw received in the polyaxial body. The force applied to the shank head by the collet is adequate to temporarily lock the desired orientation of the shank with respect to the polyaxial body.

Abstract: A surgical guide includes a body defining a first access port and a second access port. The first access port extends on a first longitudinal access parallel with a first edge of the body and the second access port extends on a second longitudinal access positioned non-parallel with respect to each edge of the body. At least one coupling arm extends from the body. The at least one coupling arm defines at least one fixation aperture sized and configured to receive a fixation element through.

Abstract: An orthopedic implant is specifically configured for use in osteotomies, in which part of the implant extends into an intramedullary portion of a first bone segment and a plate portion is external to the cortical surface of an adjacent bone segment to fix the segments to allow them to fuse. The body of the implant has a first end and a second end where the end which is inserted into the bone has a chamfer and a through hole having a hole axis optionally at an oblique angle to the longitudinal axis of the implant, and which can receive a screw, peg or pin. The second end of the implant includes a plate portion with at least two offset screws.

Abstract: Methods and apparatus are disclosed for excising a joint between first and second bones to define a resected joint, approximating the first and second bones to reduce the resected joint, and fixing the first and second bones relative to each other. The excising step can be performed using a cut guide that is movable from a first orientation to cut the first bone to a second orientation to cut the second bone. A compressor block can be driven over temporary fixation members that extends into the first and second bones to reduce the resected joint. A staple, along or in combination with other fixation elements, can then permanently fix the first bone to the second bone.

Abstract: A variety of surgical procedures may be performed on the bones of the foot, such as on one or more lesser metatarsals of the foot positioned laterally of the first metatarsal. For example, a surgical procedure may involve cutting an end of one or both of a second metatarsal and an intermediate cuneiform and/or cutting an end of one or both of a third metatarsal and a lateral cuneiform. The tarsometatarsal joints defined be one or both sets of bones may be cut to treat an arthritic joint, metatarsus adductus, and/or other clinical condition. In any case, various surgical instruments can be utilized during a procedure to help increase the accuracy and repeatability of the procedure patient-to-patient, improving overall patient outcomes and making it less invasive. For example, one or more cut guides having tissue control features may be utilized during procedure.

Abstract: Methods include tracking one or more of a leg length or an offset in a patient during a total hip arthroplasty (THA) procedure performed using a navigated surgical system, with an expandable trial femoral assembly. Certain methods include registering a pelvis of the patient to the navigated surgical system; and in various embodiments measuring a leg length or registering a femur to the navigated surgical system. An expandable trial femoral assembly is affixed to a prepared and broached femur of the patient; and the expandable trial femoral assembly is reduced into an acetabular prosthesis. A navigated driver may then be used to adjust an expansion extent of the expandable trial femoral assembly. The navigated surgical system may measure the leg length and the offset in the patient based on the movement of a reference element of the femur relative to a reference element of the pelvis.

Abstract: The present technology includes patient-specific spinal fusion devices, which may include an interbody implant that is designed to be positioned within a disc space between two vertebral bodies and one or more fixation elements that can anchor the interbody implant to the vertebral bodies. The fusion devices include one or more retention mechanisms for retaining the fixation elements within corresponding lumens or bore holes extending through the interbody implant. Methods for designing and manufacturing patient-specific spinal fusion devices are also described herein.

Abstract: Surgical procedures, tools and implants are disclosed for both conventional and reverse shoulder implant surgeries. The improved procedures, tools and implants relate to humeral head resurfacing, humeral head resection for standard implants, humeral head resection for reverse shoulder implants, glenoid resurfacing for standard shoulder implants and glenoid resurfacing for reverse shoulder implants. 3D scans and x-rays are used to develop virtual models of the patient anatomy, identify patient specific landmarks for anchoring guide wire installation blocks, templates and drill guides. 3D scans are also used to design patient specific tools and implants for the shoulder implant procedures and to pre-operatively determine the appropriate inclination and retroversion angles.

Abstract: A unicondylar posterior cutting block, method of use and kit of surgical components are provided, with the cutting block comprising: a base which is mountable on a resected proximal tibial surface of a knee of a patient in use; and a body pivotally attached to the base, the body including an alignment formation arranged to align with a marking on a femur in use, the body defining a cutting guide therein for receiving a cutting instrument to make a unicondylar posterior cut in the femur and wherein moving the alignment formation to align with the marking on the femur causes the body to rotate relative to the base and to tilt the cutting guide relative to the base. Different bases offer different cut positions and rotation of the base offers further different cut positions.

Abstract: A dynamic reference base (DRB) and associated method are provided for rigidly affixing an array frame to bone for use in navigated or robotic surgery. The DRB includes a bridge element that includes a connecting rod having a distal end and a proximal end; a clamp coupled to the distal end of the connecting rod; a first and a second pin guide extending distally from the clamp; a locking nut disposed on the clamp; and a clutch coupled to the proximal end of the connecting rod, the clutch being adapted to couple to the array frame. The DRB also includes the array frame, which is couplable to the clutch, and is adapted to include a plurality of tracking markers disposed thereon.

Abstract: A system includes an intraosseous sliding osteotomy (ISO) plate including a body extending between a first end, a second end, a first surface, a second surface, and a perimeter wall. The body defines at least one fastener aperture extending from the first surface to the second surface. A plate handle is configured to be coupled to the ISO plate. The plate handle includes a body including a handle portion and a head portion. The head portion defines at least one aperture. A locking element includes a locking portion sized and configured to extend through the at least one aperture defined in the head portion of the plate handle to couple the plate handle to the ISO plate.

Abstract: The present disclosure relates to a computer-assisted method for planning an osteotomy procedure on at least one bone selected from a tibia and a femur of a patient's lower limb to correct a misalignment of said lower limb, in which said bone is to be partially cut into two bone portions articulated by a hinge zone, said bone portions are to be distracted or closed until a deformed configuration of the bone and an implant is to be screwed to said bone portions to maintain the bone in said deformed configuration, comprising: •—obtaining an at least partial 3D model of the tibia and/or the femur and a 3D model of the implant; •—receiving at least one user input comprising at least one target alignment parameter; •—based on the at least partial 3D model of each bone and the at least one user input, implementing a dynamic simulation of each cut and of distraction or closing of the bone portions to compute a deformed model of each bone to be cut resulting from the simulated cut(s) and distraction or closing; •—bas

Abstract: A tool for removing a stem implant that has been implanted within a bone can include a cutting section and a clearance section. The cutting section can extend from a proximal portion to a distal portion. The cutting section can include a blade configured to generally conform to an exterior geometry of the stem implant. The clearance section can be disposed adjacent to the cutting section such that a distal portion of the clearance section can be joined to the proximal portion of the cutting section. A proximal portion of the clearance section can be configured to receive and transmit forces to drive the cutting section along a desired trajectory for removal of the stem implant. The clearance section can be shaped to provide an offset that prevents interference with a neck of the stem implant while the cutting section is being driven along a desired trajectory.

Abstract: A powered surgical tool system. The system includes a handpiece having a motor and a front end attachment removably coupled to the handpiece. The attachment has a nose defining a bore for receiving a shaft of a cutting accessory connectable to a motor of the powered surgical tool for rotation. The nose also defines an enclosed channel separate from the bore. The channel extends longitudinally and helically along the nose such that the enclosed channel curves around the nose to curve around the bore. The channel has a variable pitch as the enclosed channel extends longitudinally. An irrigation fitting is in fluid communication with the enclosed channel in the nose and is adapted to receive an irrigating fluid and flow the fluid through the enclosed channel.

Abstract: A device for registering a bone for a robotic shoulder arthroplasty with a surgical robot. The device can include a first portion engageable with a first portion of a bone and can include a second portion engageable with a second portion of the bone, the second portion connected to the first portion and rotatable with respect to the first portion. The device can include a registration device connectable to the first portion and configured to interface with the surgical robot for registration of the device and the bone. The device can include an actuator engageable with the first portion and the second portion to move the second portion toward a closed position away from an open position.