Abstract: The invention provides a method and a kit for administering bone cement to the interior cavity of a bony member to enhance bone strength, stabilizing an existing fracture thus reducing susceptibility of the bone to further fracture and/or collapse. The method and kit may include additional components, such as, bone growth enhancing agents, radiopaque components or the like.

Abstract: A method includes inserting a guide mount into a space between a talus and a tibia until a mating portion having a conformal bone engaging surface is disposed against the tibia. An instrument guide is into a cavity defined by the guide mount such that an opening defined by a superior wall of the instrument guide aligns with an opening defined by a superior wall of the guide mount. A reamer head disposed within the opening defined by the instrument guide is connected to a flexible reamer shaft that is received within a passageway defined by the instrument guide. The talus is reamed with the reamer head driven by the flexible reamer shaft.

Abstract: A reaming instrument, in accordance with one embodiment, includes a rotatable cutting head and a cutting face on a distal end of the cutting head. At least one radially displaceable cutting element has a cutting edge projecting in a distal direction from the cutting face. An adjustment element is operable to displace the cutting element toward a fully retracted state, or toward a fully expanded state. In another embodiment, a method of modifying a bone surface includes displacing at least one cutting element on a reamer instrument to a fully retracted state, inserting the instrument into a human or animal, operating an adjustment element to displace the cutting element toward an expanded state, and activating the cutting head to begin cutting the bone.

Abstract: The present invention in some embodiments thereof, relates to bone material removal devices (2100), for example, devices which change effective diameter. In some embodiments, a bone removal device comprises an expandable portion. In some embodiments, the expandable portion comprises one or more bone removing elements such as cutting teeth (2106). In some embodiments, a cutting tooth is movable between an open position, in which it is configured to widen a bore in a bone, and a closed position. In some embodiments, a cutting tooth of the bone removal device is formed with a curved, such as convex, cutting face (2114).

Abstract: Systems, assemblies, components and methods for correcting alignment of one or more vertebrae of a spine are provided. A first elongate derotator member includes a first elongate element having a first proximal end portion and a first distal end portion. The first distal end portion is releasably engageable with a first implant implanted in one of the vertebrae. A second elongate derotator member comprising a second elongate element is releasably engageable with a second implant implanted in the same vertebra. A transverse member is engageable with the first and second elongate elements.

Abstract: Embodiments of devices, apparatuses, kits, and methods for repairing and/or augmenting the articular surface and/or articular rim of a joint (e.g., repairing the anterior glenoid rim after an anterior shoulder dislocation).

Abstract: A surgical apparatus for positioning within a tissue tract accessing an underlying body cavity adapts to tissue tracts of different widths. The surgical instrument includes a proximal member, a distal member, and a sleeve extending between the proximal member and the distal member and defining a longitudinal passage therein. The proximal member includes an inflatable member that selectively adjusts the radial dimension of the proximal member. A ring member may be separately insertable by a user during a surgical procedure into the space directly adjacent to the radially-inner surface of the inflatable member, so as to selectively provide rigidity to the proximal member.

Abstract: Systems, methods and a sensor alignment mechanism are disclosed for medical navigational guidance systems. In one example, a system to make sterile a non-sterile optical sensor for use in navigational guidance during surgery includes a sterile drape having an optically transparent window to drape the optical sensor in a sterile barrier and a sensor alignment mechanism. The alignment mechanism secures the sensor through the drape in alignment with the window without breaching the sterile barrier and facilitates adjustment of the orientation of the optical sensor. The optical sensor may be aligned to view a surgical site when the alignment mechanism, assembled with the sterile drape and optical sensor, is attached to a bone. The alignment mechanism may be a lockable ball joint and facilitate orientation of the sensor in at least two degrees of freedom. A quick connect mechanism may couple the alignment mechanism to the bone.

Abstract: Provided is a cutting instrument including: an elongated member including a tubular portion 105 and a shaft-like portion 101 inserted in the tubular portion 105; a blade 201 including two edges, the blade 201 being provided at an end of the elongated member and being pivotable between a housed position and a projected position; and a motion mechanism that converts a relative movement of the tubular portion 105 and the shaft-like portion 101 resulting from an operation of an operation portion 102 to 104 into pivoting of the blade between the housed position and the projected position, wherein the cutting instrument moves toward the operation portion while rotating in its entirety with the two edges of the blade 201 projected on opposite sides of the tubular portion 105, thereby drilling a hole with a diameter larger than an outer diameter of the tubular portion 105.

Abstract: Systems and methods for arranging objects in an operating room in preparation for a surgical procedure. The objects are arranged based on surgical procedure information provided to a guidance station. The surgical procedure information dictates the desired placement of the objects. Placement of the objects is then guided according to their desired placement using one or more tracking elements.

Abstract: A surgical device includes an elongate body extending from a proximal end to a distal end. The distal end of the elongate body defines a notch sized and configured to receive a reamer. A coupling assembly is supported by the elongate body and includes a reamer guide body disposed at the distal end of the elongate body. The reamer guide body configured to move between a first position and a second position in which the reaming guide body extends at least partially across the notch. A locking assembly is supported by the elongate body and is configured to releasably engage the coupling assembly to maintain the reamer guide body in the second position.

Abstract: A system, devices and methods are provided for facilitating stabilization of periarticular fractures. The system includes a compression plate and one or more of a cerclage cable for encircling the bone and securing the compression plate to the bone, a crimp lug for securing the cable in tension relative to the bone and/or a plate, and a supplemental plate coupled to the compression plate and adapted to receive bicortical or unicortical bone screws to further secure the compression plate relative to the bone. In addition, the system includes a cable tensioner for temporarily retaining the cable in tension and then applying a tension to the cable until a desired compression is effected between a plate and bone and while a cable retaining structure is secured to the cable to retain the applied tension on the cable. Also provided is a jig for use with plates for minimally invasive fracture stabilization.

Abstract: A drill system for forming a curved tunnel in a bone includes a drill bit guidance device. The drill bit guidance device includes an elongated stationary outer tube extending along a first axis and an elongated inner tube. The elongated inner tube is configured to slidably move within the elongated stationary outer tube along the first axis and to exit from a distal end of the elongated outer tube. The elongated inner tube has a partially slotted distal end portion including a plurality of semi-cross-sectional slots extending perpendicular to the first axis. Each slot is configured to collapse inward in the slot direction when exiting the distal end of the elongated outer tube, thereby curving the distal end portion of the elongated inner tube.

Abstract: System, including apparatus and methods, for bending a bone fixation device, such as a bone plate during a surgical procedure. In some embodiments, the system may include an instrument having (a) a clamp with jaws and (b) a graspable handle portion that is manipulable while a bone plate is located between the jaws to bend the bone plate by application of pressure with the jaws at alternating positions along the bone plate. The clamp may allow the bone plate to be reoriented from an orientation for in-plane bending to an orientation for out-of-plane bending, and vice versa, while the bone plate remains between the jaws.

Abstract: Disclosed herein is a method of defining a mating surface in a first side of an arthroplasty jig. The mating surface is configured to matingly receive and contact a corresponding patient surface including at least one of a bone surface and a cartilage surface. The first side is oriented towards the patient surface when the mating surface matingly receives and contacts the patient surface. The method may include: a) identifying a contour line associated with the patient surface as represented in a medical image; b) evaluating via an algorithm the adequacy of the contour line for defining a portion of the mating surface associated with the contour line; c) modifying the contour line if the contour line is deemed inadequate; and d) employing the modified contour line to define the portion of the mating surface associated with the contour line.

Abstract: An implant including a screw body composed of pure magnesium or a magnesium alloy and having a male thread, and the implant further including an anodized membrane covering an outer surface of the screw body. The male thread has a clearance flank and a pressure flank. The clearance flank faces forward in a traveling direction and the pressure flank faces rearward in the traveling direction during a screwing process of the screw body. The biodegradation period of the anodized membrane on the clearance flank is shorter than the biodegradation period of the anodized membrane on the pressure flank.

Abstract: An instrument for attachment to a bone is disclosed herein. The instrument comprises a body portion providing a cutting guide. At least one hole extends through the body portion. The at least one hole includes a first portion configured to engage a handle. The at least one hole further includes a second portion configured to pass a bone engaging member having a shaft, such as a bone pin or a bone screw. The second portion of the at least one hole is not configured to pass the handle. The handle and the bone engaging member may be provided in various configurations. For example, the handle may be releasably connected to the shaft in a cannulated relationship. In another embodiment, the handle is integrally connected to the shaft.

Abstract: The present invention is a bone growth stimulating and promoting cytokine type biological implant preferably comprising PTH coated with a controlled release biodegradable coating that is implanted preferably in the concave side of a scoliotically curved spine in combination with a bone growth inhibiting type biological implant preferably comprising methotrexate or like anti-metabolite coated with a controlled release biodegradable coating that is implanted preferably in the convex side of a scoliotically curved spine. The insertion of the biological implant is highly non-invasion, especially as compared to more conventional spine surgical methods, and the biological implant does not decrease spinal mobility or spinal range of motion.

Abstract: A stifle stabilization system is provided herein. The system comprising a femoral component having a leg portion and bottom portion, the bottom portion including an interconnected coupling member protruding therefrom, an articular sliding insert component having a channel corresponding in size and shape to at least part of the coupling member, an enlarged opening in a bottom surface of the insert component in communication with the channel, and a slot through the bottom surface of the insert component in communication with the enlarged opening and the channel, the channel receiving the at least part of the coupling member through the enlarged opening, and a tibial component having a first proximal planar portion defining a slot, the slot being of corresponding and complementary shape to the articular sliding insert component to receive the articular sliding insert component therein.

Abstract: A spinal cage (80) including first and second spinal attachment members (82, 84) attachable to vertebrae (83, 85), the first and second spinal attachment members (82, 84) articulating with one another by means of an articulation joint (86, 88), characterized by a wedge element (90) arranged for wedging between the first and second spinal attachment members (82, 84), and an actuator (92) linked to the wedge element (90) for moving the wedge element (90) in a direction that wedges the wedge element (90) further in between the first and second spinal attachment members (82, 84) or further away from the first and second spinal attachment members (82, 84).