Abstract: An orthopedic instrument in the form of an acetabular cup extractor system for reliably and efficiently extracting an acetabular cup implant from an acetabulum. The system includes a handle assembly, an extractor attachable to a distal end of the handle, and a dome guide assembly having a hemi-spherical dome for engaging the extractor and a centering body extending distally from the hemi-spherical dome for engaging an acetabular implant. The extractor includes a curved, concave guide and a curved blade. The curved, concave guide is sized and shaped to substantially matingly engage with and cover a substantial portion of the hemi-spherical dome. As a result of such an arrangement, a uniform cut is achieved by the curved blade thereby resulting in a minimum of bone being extracted from the acetabulum around the acetabular cup implant during a surgical procedure.

Abstract: An orthopaedic joint replacement system is shown and described. The system includes a number of prosthetic components configured to be implanted into a patient's knee. The system also includes a number of surgical instruments configured for use in preparing the bones of the patient's knee to receive the implants. A method or technique for using the surgical instruments to prepare the bones is also disclosed.

Abstract: A method, system, and apparatus for bone fusion. Bone fusion can be performed using an elongated plate having a top face and a bottom face and defining a plurality of screw apertures therethrough. The elongated plate has a longitudinal dimension between a first and second ends and a lateral dimension between first and second sides. The screw apertures are defined in a generally straight line along the longitudinal dimension of the elongated plate, and three or more of the screw apertures are configured to facilitate different trajectories of bone screws through each of the three or more screw apertures. The screw apertures are configured to facilitate trajectories of bone screws to secure at least three bones to the elongated plate.

Abstract: A device for forcefully inserting a surgical implant in a recipient bone by impaction, comprising an impactor (10) that exerts an impaction force on the implant and is associated with at least one sensor (12). The sensor (12) measures a value from among the exerted impaction force and the deformation of the impactor (10) and provides a measurement signal representing the temporal variation of said value during an impact. The sensor (12) is connected to a processing unit (30) that is configured to compute, on the basis of the temporal variation of said value during the impact, an indicator representing the level of contact between the implant and the recipient bone. The indicator corresponds to the duration separating the instant corresponding to the first maximum amplitude peak of the measurement signal from the instant corresponding to the second maximum amplitude peak of the measurement signal. The implant can be a femoral rod (2).

Abstract: A method of creating a patient specific instrument (PSI) for use in knee replacement surgery is described which includes using a digital bone model generated using at least two two-dimensional X-ray scans of a bone, each of the X-ray scans being taken from different angular positions. Locations for one or more anchor points on the PSI which are adapted to abut a surface of the bone are determined, the determined locations of the anchor points being disposed on the PSI at locations corresponding to areas of expected high accuracy on the digital bone model generated by the X-ray scans. The areas of expected high accuracy include at least a peripheral bone contour in at least one of the angular position of the X-ray scans. A method of positioning a surgical guide using such a PSI is also disclosed.

Abstract: Disclosed herein are a bone plating system and a method for utilizing the same. The bone plating system may include first and second bone plates in contact with respective first and second bones, a cross-connector, a cutting guide and a targeter device. The cross-connector may have a first end and an opposite second extending along a longitudinal axis from the first bone plate to the second bone plate. The cutting guide may have an elongate body placed on one of the first or second bones. The targeter device may have a drill guide to align the cross-connector with the first and second bone plates. A method for fixing the bone plating system to the first and second bone may include using the targeter device.

Abstract: A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion.

Abstract: A device (25) for drilling holes in bone and configured to determine bone screw length, the device (25) including a surgical power drill (2) comprising: a) a housing (12) and; b) a measuring device (1) releasably attached or fixed to the housing (12), wherein the measuring device (1) is configured to measure the distance (x) covered by the housing (12) in the direction of the longitudinal axis (7) and relative to a surface of an implant (26) or a bone during a drilling process, wherein the measuring device (1) comprises a processing unit (14) to record the distance (x) covered with respect to time; the processing unit (14) comprises one or more differentiators to determine at least the first and second derivatives of the distance (x) covered with respect to time; and the processing unit (14) further comprises a peak detector to analyze one or more peaks occurring in the graph of the highest derivative with respect to time, and wherein the measuring device (1) comprises a laser device or an ultrasound position

Abstract: A method and apparatus are disclosed. The method includes removably attaching an input device of a surgical feedback system to a surgical tool having a handle. The input device has at least one sensor configured to collect a plurality of original signals. The plurality of original signals has at least one of an acoustic signal or a vibration signal. The surgical tool contacts tissue of a patient. And, a notification of the type of tissue being contacted by the surgical tool is received.

Abstract: Methods and systems are provided for robotic assisted surgery. A robotic system includes a localizer, at least one controller, and a surgical robotic manipulator which separately and detachably receives an energy applicator and an implant insertion tool that detachably receives an implant specifically for knee, hip or shoulder replacement surgery. The at least one controller determines a location within a portion of a patient's anatomy in which to form a cavity for the implant. The surgical robotic manipulator is controlled to form the cavity with the energy applicator. The surgical robotic manipulator is then controlled to insert the implant into the cavity with the implant insertion tool.

Abstract: Access assemblies includes an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. In embodiments, the seal assembly includes a plurality of seal sections that are movable from an unfolded configuration to folded configuration in which the seal assembly forms a hexagonal member defining an opening to facilitate sealed passage of a surgical instrument. The seal sections may include a tapered inner edge for engaging a surgical instrument inserted through the instrument valve housing.

Abstract: Medical devices and related methods for transforming bone, other tissue, or other material are disclosed herein. According to an aspect, a cutting device includes a static casing that defines a sheathing slot and an opening. The sheathing slot extends to the opening and has a first height at an end of the opening. Further, the bone cutting device includes a horn including a first end and a second end. The first end is configured to operatively connect to a source of movement. Further, the second end includes a cutting component having a second height. The first height is greater than the second height.

Abstract: According to some embodiments, an implant for correcting a deformity in or near a joint of a subject includes an implant body having an internal lumen, a suture side hole or window extending through a wall of the implant body and providing access to the internal lumen through an exterior of the implant body, a tension assembly comprising a first bone anchor and a second bone anchor, wherein the first and second bone anchors are configured to be placed on opposite sides of the implant body, and an adjustable suture loop coupling the first bone anchor to the second bone anchor, wherein at least a portion of the at least one adjustable suture loop is positioned within the internal lumen of the implant body.

Abstract: Embodiments of the present disclosure includes method and devices for minimally invasive spinal fusion surgery. A method for minimally invasive spinal fusion surgery can include accessing a spinal column through a working channel device, wherein the working channel has a proximal end and a distal end, advancing the working channel so that the distal end pierces an outer layer of a vertebral disc, inserting a disc extractor through the working channel device and into the vertebral disc to cut the vertebral disc into pieces, inserting a disc blade through the working channel device and into the vertebral disc to cut the vertebral disc into pieces, using a disc rake to remove the pieces of the vertebral disc, inserting a disc shaver to clean a number of surfaces of vertebra adjacent to the vertebral disc, and inserting and implanting a disc implant in a space from where the vertebral disc was removed.

Abstract: An improved posterior acetabular wall fracture buttress plate has a main plate and a plate extension. The buttress plate has a pair of arms extending from the main plate and an arm extending from the plate extension. The main plate and the plate extension are pre-contoured with a concavity contoured and bent lengthwise off horizontal relative to the main plate to mimic a hip socket contour posteriorly along an undersurface at about 38 degrees plus or minus 8 degrees to mimic a curvature of the hip to yield an angle on the undersurface of 142 degrees plus or minus 8 degrees. The arms are 1.0 cm or less wide. The plate extension extends from the main plate and has at least one transverse groove defining a breakaway section allowing the plate extension to be removed from the main plate.

Abstract: A drill sleeve, including: an outer sleeve with an internal collet at a distal end of the outer sleeve and an inner opening; a handle connected to the outer sleeve; an inner sleeve with an inner opening configured to receive and guide a drill bit, wherein the inner sleeve is configured to slide inside the inner opening of the outer sleeve; a trigger connected to the inner sleeve; and a biasing member configured to apply a biasing force between the handle and the trigger wherein the biasing force drives the inner sleeve into the outer sleeve, wherein when a distal end of the inner sleeve engages the internal collet, the internal collet is configured to engage a screw hole in a bone plate, align the drill sleeve with a nominal axis of the screw hole, and secure the drill sleeve to the screw hole.

Abstract: Disclosed is a compound bone plate for attaching a bone flap to a skull. The compound bone plate can include a first plate member, a second plate member, a burr hole cover, and a strut. The first plate member can be operable to be attached to the bone flap and the skull. The second plate member can be operable to be attached to the bone flap and the skull. The strut can connect the first plate member, the second plate member, and the burr hole cover.

Abstract: Disclosed herein is a parallel spacer for parallel spacing of a guide wire/pin during surgery. The parallel spacer incudes a parallel spacer body having a top surface and a bottom surface. The parallel spacer also includes a first aperture extending through the body and defined by one or more internal walls that extends to the opening in the top surface. The aperture is sized to receive a first guide and hold the first guide in a first orientation. A second aperture extends between a second opening in the top surface and a second opening in the bottom surface. The second aperture is defined by one or more walls located within the spacer body. The one or more walls connect the second opening in the top surface to the second opening in the bottom surface. The aperture is sized to receive another guide and hold the other guide in a parallel orientation to the first orientation at a first distance from the first aperture.

Abstract: An apparatus for a bone fusion assembly is provided for compressing adjacent bones across a bone fusion site to encourage fusion thereof. The bone fusion assembly includes a generally elongate member comprising a plate that has one or more fixation apertures to receive fasteners that are configured to be coupled with the adjacent bones. A threaded fastener comprising a bone screw, including a head portion and a shank, is configured to traverse the bone fusion site. A slanted aperture disposed in the plate is configured to receive the bone screw at a predetermined angle with respect to a plane of the plate. The slanted aperture comprises a smooth countersunk surface and one or more teeth that are configured to cooperate with the head portion of the bone screw to compress the adjacent bones together and encourage bone fusion therebetween.

Abstract: An interbody implant includes an implant body extending between an anterior surface and a posterior surface. The implant body includes a first vertebral engaging surface and a second vertebral engaging surface. At least one of the vertebral engaging surfaces defines a cavity configured for disposal of bone growth detectable via medical imaging. Systems, spinal constructs, surgical instruments and methods are disclosed.