Abstract: An orthopedic locking screw is configured to be retained inside a bore of an orthopedic implant. The orthopedic locking screw includes a shaft extending axially, a casing secured around an outer surface of the shaft, a deformable thread disposed along an outer surface of the casing, and a forward external thread disposed on the shaft. The forward external thread has a pitch that is different from a pitch of the deformable thread of the casing. Further, an orthopedic locking screw is provided, wherein projections and the casing are alternately arranged on the outer surface of the shaft.

Abstract: An anterior cervical plate system is provided. The plate is configured to receive bone screws for attachment to and immobilization of adjacent vertebrae of the spine. The system includes a cup retained inside a through hole of the plate by a cup retainer. A bone screw is retained inside the cup by a lock that is movable between a locked position and an unlocked position. The cup is permitted to angulate forward and backward with respect to the plate and the bone screw is permitted to angulate conically with respect to the cup to provide a plate system with extreme angulation for the bone screw.

Abstract: A twist-drivable pin assembly includes first and second drivers, each having a driving end which can be received in a bore in the end of a twist-drivable pin, and an opposite end at which torque can be applied. The cross-sectional shape of each of the drivers at its driving end has a first plurality of apexes whose relative locations coincide with the apexes of a regular polygon such as a hexagon. The drivers differ from one another in their cross-sectional shapes at the driving end by virtue of one or more faces of at least one of the drivers between adjacent pairs of apexes having a groove formed in it. Each of first and second twist-drivable pins has a bore extending into it which is defined by a second plurality of apexes arranged as a regular polygon such as a hexagon and which is open at one end.

Abstract: Extraction instruments and systems for use in revision arthroplasty are provided. The extraction instruments are shaped and configured to fit within the typically tight confines in which revision arthroplasty is performed, and to enhance the surgeon's control over the axis, quantum and speed of the force that is required be applied to disrupt a bone-to-prosthesis bond. This enables completion of a revision arthroplasty to proceed more quickly, and with reduced risk that unwanted movements might cause accidental injury to nearby vital structures.

Abstract: Provided are systems, devices and methods for treating spinal injuries and abnormalities. For example, provided are spinal fusion devices and methods for treating degenerative disc disease using the spinal fusion device.

Abstract: Apparatuses and systems including an instrument for manipulating components within a knee joint of a patient are disclosed. Such manipulation can include inserting and/or removing such components to or from a bone of the knee joint. The instrument can include a handle, a body, a plunger, a detent and a collar. The handle can have a proximal end and a distal end and a longitudinal extent between the proximal end and the distal end. The body can be coupled to the handle and can extend distal of the distal end. The body can define a receptacle therein having an opening at a distal end portion of the instrument. The plunger can be moveably disposed within the body and can be moveable between a first position and a second position. The detent can be moveable by the plunger, such that with the plunger in the first position at least a portion of the detent can extend into the receptacle and with the plunger in the second position the detent can be recessed from the receptacle.

Abstract: An anchoring system for cannulas or tools to be inserted into a surgical workspace in the body, particularly the brain, of a patient. The system comprises a grommet which may be fixed to the skull to both secure the system to the skull and protect the skull opening from passage of cannulas and tools, a resilient clip with grasping jaws adapted to firmly grasp a cannula or tool, and a flexible membrane secured to the outer rim of the grommet and the clip.

Abstract: A patient-specific cutting guide system comprises at least two instruments. One is a positioner configured to locate a fiducial marker on a patient's bone and to be secured in three axes. The second is a cutting guide that cooperates with the positioner and delineates cuts to be made. The instruments are designed from images of the bone with the marker already in place. Preferably, a positioner comprises at least three targeting apertures configured to locate at least three non-linear markers. The cutting guide comprises top surface contours that guide the depth of the cuts. A method of forming this system comprises placing at least one marker (preferably three) on a patient's bone, then imaging the bone, forming a positioner designed to incorporate the marker position, and forming a cutting guide configured to be oriented and anchored by the positioner.

Abstract: A surgical grip for receiving a handpiece shaft for conjoint rotation therewith and/or for receiving a medical tool in such a way as to transmit torque, includes a carrier sleeve on which at least one coupling component provided for coupling the handpiece shaft is attached such that the at least one coupling component can be brought to a coupled position and to an uncoupled position in the operating state, wherein the at least one coupling component can be brought into contact with an activation unit which is arranged between the carrier sleeve and an outer actuation sleeve, wherein a rotation securing unit present inside the actuation sleeve acts on the activation unit in a spring-biased manner in the operating state such that the activation unit is held secure against rotation relative to the carrier sleeve.

Abstract: An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.

Abstract: Surgical tool systems and methods of use thereof for performing endoscopic surgical procedures, which systems include a handpiece and a surgical accessory which detachably connects to the handpiece. The surgical accessory has a distal end which defines a cutting head incorporating two different types of tissue-treating areas.

Abstract: A spinal implant system is provided for bridging an intervertebral space between vertebral bodies bordering the intervertebral space. The spinal implant system includes at least one adjustable end cap and a spinal implant. The end cap can be used with additional end caps and/or the spinal implant. Multiple end caps can be stacked on top of one another, and one end cap can be attached to a first end of the spinal implant, and another end cap 10 can be attached to a second end of the spinal implant. Thus, one or more of the end caps can be attached to either end of the spinal implant.

Abstract: Provided is a locking plate system for treatment of a distal radius fracture including a locking plate (4) that is a flat laminate of intermediate molding materials that includes carbon fibers as a reinforcing material and thermoplastic resin as a matrix; a screw anchor (5) having a shaft portion (10) which has a principal thread (13) achieving a self-tapping action formed thereon and an outer circumference of a head portion of the screw anchor (5) which has an auxiliary thread (13) achieving a self-tapping action tapped thereon; and a through-hole (6) in the radius locking plate (4), which allows the radius main body (3) and the fractured bone piece (2) to be threadably fixed to the radius locking plate (4) and having a diameter that is oversized relative to the principal thread (11), and that is undersized relative to the auxiliary thread (13).

Abstract: A device for collecting a bone graft material comprises a canister extending defining a filter-receiving space therein, the canister including a connection for connecting to a vacuum source, a proximal end of the canister including a first locking feature and a filter element sized and shaped to be received within the filter-receiving space of the canister, the filter element including a channel extending therethrough, the channel defined via a mesh material and a proximal end of the filter element including a second locking feature releasably engageable with the first locking feature of the canister via a rotation of the filter element about a longitudinal axis thereof relative to the canister in combination with an extractor sized and shaped to be received within the channel of the filter element, the extractor defining a graft material receiving space therein and being releasably engageable with the extractor.

Abstract: Disclosed is an axial and rotational stopping device for use when creating threads in a predrilled pilot hole or inserting an allograft bony void filler or synthetic implant into a threaded hole. The device can also provide consistent depth control for drilling a pilot hole, tapping the hole to create threads, and implanting an allograft bony void filler or synthetic implant while preventing damage to the threads in the tapped hole that would be caused by continuing to rotate a tap once the depth stop has been reached and the tap can no longer advance in the axial direction, as well as preventing damage to the threads in the tapped hole, the threads on the mating allograft bony void filler or synthetic implant, and the drive features on either the driver instrument or the allograft bony void filler or synthetic implant.

Abstract: A computer-assisted surgery system comprises a calibrating instrument adapted to be applied to a pelvis in a known manner, and a surgical instrument. A computer-assisted processor unit operating a surgical assistance procedure and comprises at least one portable inertial sensor unit configured to be connected to the at least one calibrating instrument and the at least one surgical instrument, the portable inertial sensor unit outputting readings representative of its orientation. A geometrical relation data module provides a geometrical relation data between the orientation of the portable inertial sensor unit, of the calibrating instrument and of the surgical instrument.

Abstract: A adaptor is used with a driver, a drill, and a cannula to facilitate removal of material from bone and placement of the cannula in the bone. The adaptor includes an end portion provided at a proximal first end that is configured to engage a portion of the drill; a body portion attached to the end portion and extending from the end portion toward a distal second end; a head portion provided at the distal second end and attached to the body portion; and a passageway for receiving the drill that extends through the adaptor. Furthermore, the head portion includes a distal surface and at least one coupler provided on or adjacent the distal surface for releasably engaging, the cannula.

Abstract: The invention relates to a medical instrumentation with a navigation system which comprises an optical detection unit comprising a camera, and a data processing unit coupled to the detection unit, with a medical article and with a marking device which is held directly or indirectly on the article and is positioned in a defined spatial arrangement in relation thereto, or which marking device is comprised by or formed by the article, the location and orientation of the marking device being determinable with the navigation system, it being possible for at least one image of the marking device and the article to be taken by means of the detection unit and for the position and shape of the article to be determined by the data processing unit on the basis of an image. The invention also relates to a method for determining the shape of a medical article.

Abstract: A measurement device is provided for measuring a resected femoral head. The device comprises a base (102) with a support rod (104) extending transversely from the base and extending in a direction corresponding to a height of a resected femoral head. A femoral head support (108) is attached to a base proximate an end of the support rod (104) for supporting a severed end of a femoral head at a selected incline between about 30° and 60° relative to the base such that a height of the resected femoral head extends in the general direction of the support rod. A transverse height indicating arm (120) is adjustable up the height of the support rod (104) so as to measure the height of a resected femoral head (106) positioned on the femoral head support in use. The transverse height indicating arm (120) may carry adjustable offset indicating arm (122).

Abstract: An interbody spacer for the spine is provided. The interbody spacer includes a cage and at least one bone screw configured to anchor the cage between two vertebrae of the spine. The cage includes a lock rotationally movable with respect to the cage between a locked configuration and an unlocked configuration. When in an unlocked configuration, bone screws may be inserted and removed from the cage. When in a locked configuration, the insertion and removal pathway of the bone screw is blocked by the lock, thereby, providing backout protection for the bone screws. The lock is coupled to the cage by a pronged retainer and includes a camming surface to provide for incremental rotation of the lock. The lock includes a space-saving shape providing for maximum bone screw angulation on a laterally smaller anterior platform.