Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.

Abstract: A surgical bur includes a shaft portion that rotates in a rotation direction about a rotation axial line of the surgical cutting bur, and a cutting portion that is provided at a distal end of the shaft portion. In the surgical bur, the cutting portion has a spherical shape, has abrasive grains on a surface of the cutting portion, and has a first vertical groove extending from a distal end side of the cutting portion in an axial direction.

Abstract: This disclosure relates to a graft preparation station and methods for repairing bone defects. The station described herein may be utilized for dimensioning a graft prior to positioning the shaped graft at a surgical site.

Abstract: A system is disclosed herein for providing a kinetic assessment and preparation of a prosthetic joint comprising one or more prosthetic components. The system comprises a prosthetic component including sensors and circuitry configured to measure load, position of load, and joint alignment. The system further includes a remote system for receiving, processing, and displaying quantitative measurements from the sensors. The kinetic assessment measures joint alignment under loading that will be similar to that of a final joint installation. The kinetic assessment can use trial or permanent prosthetic components. Furthermore, adjustments can be made to the applied load magnitude, position of load, and joint alignment by various means to fine-tune an installation. The kinetic assessment increases both performance and reliability of the installed joint by reducing error that is introduced by elements that load or modify the joint dynamics not taken into account by prior assessment methods.

Abstract: An acetabular cup extractor is provided that is designed for extracting medical device implants. The acetabular cup extractor includes a fastener for securing to an implant and a cutting assembly. The cutting assembly further includes a blade spaced and movably connected to the fastener and a handle operatively connected to the blade.

Abstract: Systems and methods for ultrasonically-assisted placement of orthopedic implants is described herein. An example method may comprise delivering ultrasonic energy to a surgical instrument such as a screw driver, Jamshidi needle, awl, probe, or tap that is in contact with the bone region targeted for removal and/or being prepared for implant placement. The method may further comprise delivering the ultrasonic energy via a probe passed through a cannulated surgical instrument and/or implant. An example system may comprise an ultrasonic generator coupled to a transducer, a probe or surgical instrument coupled to the transducer, a cannulated surgical instrument that allows passage of the probe, and a computing device configured to control the ultrasonic generator and take input from the user.

Abstract: A cutting burr that includes a pair of axially spaced diamond-shaped portions designed to be keyed into a spindle of a locking mechanism of a high speed surgical drilling instrument and adapted to fit into a single pawl thereof to lock said cutting burr in place so as to prevent axial movement thereof and provide concentric rotation of said cutting burr without any wobbling. The orientation of both portions may be identical with respect to a center plan and diamond shape in the portion at the proximal end of the shank of the cutting tool may be larger than the intermediately located diamond shape of the other portion. The apexes of the facets of the six-sided diamond shape may be disposed below the surface of the shank of the cutting burr.

Abstract: An affixation device for a human skull may include a base plate that has an outer area for securing to the skull and an inner area for securing to a bone flap removed from the skull. The affixation device may also have at least one spacer located between the outer area and the inner area, where the at least one spacer extends from a first surface of the base plate, where the first surface facing the skull when the fixation device is in an installed state, and where the at least one spacer is configured to extend between the bone flap and the skull in the installed state.

Abstract: A burring device for burring tissue, bone, or cartilage may include a shaft including a burr attached at a distal end. The shaft may be configured at a proximal end to be removably attached to a motor configured to drive a rotational movement of the burr. The device may include a housing configured to house the shaft in a lengthwise direction and at least a portion of the burr. The housing may be configured to allow rotational movement of the burr, and may include, at a distal portion, an opening through which at least a portion of the burr can extend beyond the housing. The shaft or the housing may be configured to be adjustably movable in a linear direction relative to each other so that at least a portion of the burr can extend beyond a distal end of the housing.

Abstract: Systems for treating bone fractures are disclosed. Exemplary systems may include a backpack and one or more bone plates for engaging bone members. The backpack may be configured to be temporarily attached to the bone plate in order to provide trajectories for fasteners received by the bone plate. The bone plates can receive one or more screws to secure the bone plates to an underlying bone member. The one or more screws can be inserted into bone plate holes that can be considered locking or non-locking. The bone plates described herein can have particular combinations of locking and/or non-locking holes. Additional bone plate holes can be used to accept sutures, K-wire, or other instrumentation.

Abstract: Device for bone fixation with a head portion (5), a tapering front portion (8) and a shaft (3) between said head portion (5) and said tapering front portion (8), said shaft (3) having a distal portion (3a) adjacent to said tapering front portion (8) and a proximal portion (3b) adjacent to said head portion (5); whereby said distal portion (3a) being provided with a thread and having a constant outer diameter DA and an inner core diameter DI; at least the proximal portion (3b) of said shaft (3) has a core (2) consisting of a biologically non-degradable material with degradation rate BND and having a diameter d?DI; a sleeve (9) surrounding said core and consisting of a biologically degradable material with degradation rate BD, whereby BD>BND and said sleeve (9) being fixed to said core in a non-rotatable manner.

Abstract: An intervertebral spacer assembly may include a first intervertebral spacer with a superior surface configured to engage a superior vertebral body, an inferior surface configured to engage an inferior vertebral body, and a proximal surface with a first fastener channel. The assembly may further include a first fastener and a locking member with a first anti-backout member. The first intervertebral spacer or the locking member may have a locking member channel. The other may have a compressible collet insertable into the locking member channel to couple the locking member to the first intervertebral spacer such that the locking member is rotatable relative to the first intervertebral spacer between an unlocked position in which the first anti-backout member does not obstruct the first fastener channel, and a locked position in which the first anti-backout member obstructs the first fastener channel to retain the first fastener in the first fastener channel.

Abstract: Access assemblies include 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. The guard assembly includes a support ring and a plurality of guard sections disposed distally of the support ring. The seal assembly includes a proximal seal member, an intermediate seal assembly, and a distal seal member, the intermediate seal assembly including a plurality of seal sections in a stacked configuration.

Abstract: An interbody device configured for insertion between adjacent vertebrae includes a body comprising and exterior surface and an interior surface defining a cavity. The body comprises a visualization window extending between the exterior surface and the interior surface, where the visualization window comprises a lattice of radiopaque structures. A density of the lattice in a central region of the visualization window is less than in the density of the lattice in an outer region of the visualization window such that the visualization window is radiolucent through the central region.

Abstract: An interbody implant can comprise a cage and a porous structure. The cage can comprise an anterior segment, a medial segment, a posterior segment and a lateral segment contiguously connected to each other to define an interior space. The porous structure can be located in the interior space and can be bounded by the cage. The porous structure can comprise opposed superior and inferior surfaces exposed through the cage, an internal cavity located in an interior of the porous structure, and a plurality of ports connecting the internal cavity to the superior and inferior surfaces. A superior-inferior stiffness of the interbody implant can be defined by the porous structure. The porous structure can be compressed within a patient by movement of the spine to biologically stimulate bone growth in vertebrae adjacent the interbody implant. The implant can be configured for lateral, anterior and posterior insertion at different spine levels.

Abstract: An integrated targeted kyphoplasty system includes a piercing head, a tube body and a tube body handle. The tube body has an end connected to the piercing head and is provided with a balloon and a guider at an end of the balloon, and another end connected to the tube body handle and provided with a guide knob for controlling the guider to be bent and a pressure pump connector communicating the balloon. The piercing head is provided with a cement outlet, a cement channel is in center of the tube body, and the tube body handle is provided with a cement inlet. The cement outlet, cement channel and cement inlet communicate with each other. The device requires for only one piercing to complete entire KP surgical treatment without changing any tools, greatly decreasing radiation exposure rate of the patient during operation and the pain caused by multiple operations.

Abstract: Systems and methods for preventing the seeding of cancerous cells during morcellation of a tissue specimen inside a patient's body and removal of the tissue specimen from inside the patient through a minimally-invasive body opening to outside the patient are provided. One system includes a cut-resistant tissue guard removably insertable into a containment bag. The tissue specimen is isolated and contained within the containment bag and the guard is configured to protect the containment bag and surrounding tissue from incidental contact with sharp instrumentation used during morcellation and extraction of the tissue specimen. The guard is adjustable for easy insertion and removal and configured to securely anchor to the body opening. Protection-focused and containment-based systems for tissue removal are provided that enable minimally invasive procedures to be performed safely and efficiently.

Abstract: Expandable fusion devices, systems, instruments, and methods thereof. The expandable fusion device is capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. The fusion device may include a body, a first endplate, and a second endplate. A drive screw may be rotated to move the first and second endplates outwardly and into an expanded configuration. Instruments may be provided to ensure the implant is inserted safely and as intended.

Abstract: A knotless button includes a body defining a proximal portion and a distal portion. The body further defines an internal cavity and a first loop opening extending from the internal cavity to an outer surface of the body. A locking insert is slideably positioned within the internal cavity. The locking insert defines a second loop opening extending from a first side of the locking insert to a second side of the locking insert. The locking insert is slideably moveable from a first position to a second position within the internal cavity. A flexible strand defines a first adjustable loop extending through the first loop opening and the second loop opening. The locking insert is slideably moveable from a first position configured to allow adjustment of the first adjustable loop to a second position configured to lock the first adjustable loop.

Abstract: Disclosed is an assembly for holding a tool. The assembly may selectively reduce and/or eliminate vibrations received and felt by a user. Reducing vibrations may reduce or eliminate chatter at a working end of a tool.