Abstract: A posterior spinal fusion system may include pedicle screws and one or more segments designed to be attached to the implanted pedicle screws via nuts to fuse spinal motion segments in a modular fashion. The pedicle screws may have semispherical receiving surfaces, and each segment may have mounting portions at both ends, with corresponding semispherical engagement surfaces. The nuts may also have semispherical surfaces. The semispherical surfaces permit polyaxial adjustment of the relative orientations of the segments and pedicle screws. Each mounting portion may have a passageway therethrough to receive the proximal end of the corresponding pedicle screw; each passageway may intersect the edge of the corresponding engagement surface to facilitate percutaneous placement. Such placement may be carried out through cannulae to provide a minimally invasive (MIS) implantation procedure.

Abstract: A glenoid vault fixation device includes a body and at least one blade anchor. Interchangeable glenoid articular components connect to the body. The set of interchangeable components may address a continuum of glenoid and/or total shoulder indications. The body may provide multiple attachment points for the blade anchor, or may accept multiple anchors.

Abstract: A tissue resection device includes a housing, a drive shaft, and a set of cutting inserts arranged in sequence. The cutting inserts are connected in the sequence by off-axis torque couplings so that each cutting insert may lie at an angle to an adjacent cutting insert. Each cutting insert includes at least one cutting edge, and the cutting edges in sequence form a cutting profile which may include a combination of straight and curved sections. The housing may be curved. Rotation of the drive shaft rotates the set of cutting inserts to form a cutting burr.

Abstract: A surgical instrument handle includes adaptations for improved ergonomics, such as broad, rounded hand-contacting surfaces and physiologic range of motion for instrument actuation. The handle may be mostly enclosed by the hand in use, and may be stabilized by the palm, ring finger, and little finger. One example includes a ratchet mechanism and release button.

Abstract: Systems for lower extremity fusion and arthroplasty include fusion spacers, bone plates, and articular prostheses fixed to bone by blade anchors. Examples are shown for anterior, lateral, and medial approaches.

Abstract: A porous PEEK implant system which may provide tissue ingrowth throughout the body of the implant. The implant may comprise a solid or porous PEEK core. The porous PEEK implants may be of general shape and size but provide the structure necessary to carry out the function of the implant. The porous PEEK implant pores may be seeded with agents to encourage tissue ingrowth as well as other agents such as antibiotics, anesthetics, analgesics and the like.

Abstract: A line lock includes a body at least partially bounding two passageways that cooperate to receive a locking portion of a line such as a suture in such a manner that the locking portion can only be drawn through the passageways along one direction. A second suture locking portion may also be received by the passageways, or by one of the two passageways in combination with a third passageway. The body may have an elongated, compact shape that is easily implantable in the body.

Abstract: Patient specific implants and instrumentation for replacing a portion of a patella. Methods for producing patient specific implants and instrumentation include conducting imaging studies of the patient's native patella, deriving measurements of the patella and surrounding soft tissues from the imaging studies, manufacturing customized implants and instrumentation specific to the derived measurements, and implanting a customized implant using the customized instrumentation. Patient specific instrumentation includes: a patellar clamp ring, an anterior clamp, a restraining arm, a posterior clamping surface, a dual bore reaming collet, a reamer, a reaming depth gauge, and a resection cutting guide. Patient specific portions of a patellar implant include: topography of the posterior articular surface, facet angle, shape and dimensions of the anterior attachment surface, implant length, implant width, implant thickness and the outer perimeter shape of the implant.

Abstract: A joint prosthesis system, specifically a shoulder prosthesis, for shoulder replacement, revision and repair. The implants provide fixation into the best bone available to a surgeon. The implants are used in a superior-inferior and anterior-posterior construct forming a type of cross or X-shape. The implants allow for interchangeability of the articulating component as well as rotational orientation. The systems will allow for augments to accommodate bone loss. The implants may allow for additional security using screws or anchors inserted into the scapula.

Abstract: A surgical instrument for grasping and controlling a guide wire includes a male member having a longitudinal slit in communication with an inner hollow bore and a female member having a longitudinal slit in communication with an inner chamber. The male member is rotatably engageable within at least a portion of the female member. A method of threading a guide wire into a surgical instrument includes engaging a male member within a female member, rotating the male member relative to the female member until a longitudinal slit of the male member is aligned with a longitudinal slit of the female member; inserting a guide wire through the slits and into an interior of the male member and female member; and rotating the male member relative to the female member until the slits of the male member and female member are not aligned, trapping the guide wire within the surgical instrument.

Abstract: A surgical instrument includes first and second jaw members which are pivotable between closed, grasping, and cutting configurations. A spring-driven safety feature prevents unintentional movement of the first and second jaw members into the cutting configuration. The instrument allows the user to perform separate tissue grasping and cutting actions without changing instruments or removing the instrument from the surgical site.