Abstract: A spinal stabilization system may be formed in a patient. In some embodiments, a minimally invasive procedure may be used to form a spinal stabilization system in a patient. Bone fastener assemblies may be coupled to vertebrae. Each bone fastener assembly may include a bone fastener and a collar. Extenders may be coupled to the collar to allow for formation of the spinal stabilization system through a small skin incision. The extenders may allow for alignment of the collars to facilitate insertion of an elongated member in the collars. An elongated member may be positioned in the collars and a closure member may be used to secure the elongated member to the collars. An adjuster may be used in conjunction with the extenders to change a separation distance between the bone fastener assemblies.

Abstract: A method and instrument for tensioning a flexible tie used for fastening an implant on a bony element by forming a first loop around it. In some embodiments, the instrument comprises a shaft having a distal end configured for contact with a rod, a moving part slidably engaged with the shaft, a holder connected to the moving part and configured to hold an end of the flexible tie, and a tension control member comprising a trigger that pivots relative to the moving part. In some embodiments, the method comprises coupling the end of the flexible tie to the instrument and squeezing the trigger to shorten the first loop of the flexible tie around the bony element, causing the moving part and the holder holding the end of the flexible tie to move in translation away from the distal end of the shaft, thereby exerting tension on the flexible tie.

Abstract: The invention relates to a surgical bone screw comprising a shaft which has a bone thread and comprising a blocking means for interacting with a bone plate or for directly anchoring in the bone, in particular in the cortical bone. The surgical bone screw also comprises a screw head which has a rotationally symmetrical enveloping contour. The blocking means has a rib structure with at least one flank structure portion extending in the circumferential direction. According to the invention, the lateral surface of the enveloping contour has a constant or stepped concave progression, and the rib structure flank portion which extends in the circumferential direction is interrupted at least once in the circumferential direction, in particular multiple times, such that at least one elevation, in particular a plurality of elevations which are spaced in the circumferential direction, is produced in order to interact with the bone plate or with the bone in a blocking manner.

Abstract: Methods and systems include a patient specific instrument for installing a glenosphere within a joint. For example, a method for implanting a glenosphere includes installing first and second pins in a glenoid cavity using a patient specific instrument that sets a distance between the guide pins, installing an implant at the location of the second guide pin, and guiding a glenosphere onto the implant using a helper connected to the first pin. In another example, a glenosphere helper includes a cup shaped body having an interior surface for engaging at least a portion of an outer surface of the glenosphere, and a flange extending from the cup to receive a guide pin at a point, the flange extending from the cup shaped body such that the point is positioned outside a periphery of the glenosphere.

Abstract: An apparatus and method are provided for manufacturing an orthopedic prosthesis by resistance welding a porous metal layer of the orthopedic prosthesis onto an underlying metal substrate of the orthopedic prosthesis. The resistance welding process involves directing an electrical current through the porous layer and the substrate, which dissipates as heat to cause softening and/or melting of the materials, especially along the interface between the porous layer and the substrate. The softened and/or melted materials undergo metallurgical bonding at points of contact between the porous layer and the substrate to fixedly secure the porous layer onto the substrate.

Abstract: A hip stem prosthesis is provided for treating a deficient hip joint.

Abstract: A device for deploying a staple into desired bone has a staple cartridge for retaining a bone staple and a spring-loaded plunger shaft having a distal end proximal to the bone staple, the plunger shaft being retained in a proximal orientation by a latch. Squeezing a trigger releases the latch, so that the plunger shaft moves to its distal position, striking the staple and deploying the staple distally into a bone site. An additional method step, in the event that one wishes to deploy a differently sized staple, involves detaching the staple cartridge from the device and attaching a differently-sized staple cartridge to the device.

Abstract: Various systems, devices, and methods for facilitating efficient anatomical registration in surgical navigation are disclosed. Such systems and devices can have a data collection unit and a scaling device. The scaling device has a main body having an anatomical registration feature defined therein and at least one scaling marker pathway that is selectively oriented with respect to the anatomical registration feature to facilitate repeatable gross placement of a scaling marker relative to a selected anatomical feature. The scaling marker is selectively displaceable along a scaling marker pathway about and between a first end and a second end thereof to fine-tune scaling marker placement prior to image capture.

Abstract: An orthopaedic tibial prosthesis includes a tibial baseplate sized and shaped to cover substantially all of a resected proximal tibial surface, and a tibial bearing component sized to leave a posteromedial portion of the tibial baseplate exposed when the tibial bearing component is mounted to the baseplate. The exposed posteromedial portion of the tibial baseplate includes a chamfered profile which cooperates with a correspondingly chamfered profile at a posteromedial edge of the tibial bearing component to create a substantially continuous chamfer extending from the resected tibial surface to the medial articular surface of the tibial bearing component. Advantageously, this chamfer leaves an absence of material (i.e., a relief or void) at the posteromedial edge of the tibial prosthesis, thereby enabling deep flexion of the prosthesis without impingement between the tibial prosthesis and adjacent anatomic tissues or prosthetic structures.

Abstract: The present teachings provide one or more surgical implements for repairing damaged tissue, such as through a fixation procedure. A system for a percutaneous procedure is provided. The system can include a bone fastener including a receiver. The system can include a device having a first end, a second end and a middle portion. The first end, middle portion and second end can be disposed along a longitudinal axis, and the second end can be connected to the receiver. The middle portion can have a pair of deformable leg members extending between the first and second ends. The leg members can define a channel having a width. The leg members can be selectively movable between a retracted state and an expanded state with the width of the channel greater in the expanded state than in the retracted stare.

Abstract: Methods and systems for determining a patient specific soft tissue location within a joint are discussed. For example, a method can include imaging a target location for an orthopedic implant to collect image data regarding a morphology of the patient, the morphology including at least one of bone size and bone feature. The method can additionally include accessing stored soft tissue data and bone data corresponding to the target location of the orthopedic implant, locating a soft tissue of the patient based at least in part upon the soft tissue data and bone data and the image data, and displaying data including the location of the soft tissue of the patient. This data can be used to created patient specific surgical jigs according to one example of the present application.

Abstract: An impactor-extractor for inserting or extracting a stem of a prosthesis into or from a bone can include a body having a first end and a second end. The body can include an impact head located at the first end. A lever can be connected to the body and pivotable about a first pivot point distal to the first end of the body. A base can be located at the second end of the body and can include a first taper connector sized to mate with a second taper connector of the stem. A lock can be located at and pivotable about a second pivot point proximate the second end and can include an extension configured to secure the stem to the first taper connector. Linkages can connect the lever and the lock.

Abstract: The subject matter includes systems, methods, and prosthetic devices for joint reconstruction surgery. A computer-assisted intraoperating planning method can include accessing a first medical image providing a first view of a joint within a surgical site as well as receiving selection of a first component of a modular prosthetic device implanted in the first bone of the joint. The method continues by displaying a graphical representation of the first component of the modular prosthetic device overlaid on the first medical image, and updating a graphical representation of the first component based on receiving positioning inputs representative of an implant location of the first component relative to landmarks on the first bone visible within the first medical image. The method concludes by presenting a selection interface enabling visualization of additional components of the modular prosthetic device virtually connected to the first component and overlaid on the first medical image.

Abstract: A plurality of individual medical devices is created that define a medical device family. Within the family of medical devices, each of the plurality of medical devices has at least one dimension that, within an acceptable tolerance, is substantially equal to the same dimension of another of the plurality of medical devices. Thus, for each medical device in the family, another, corresponding medical device has at least one substantially similar dimension. For example, a first medical device may have a first value for a dimension and a second medical device may have a second value for the same dimension that is equal to one of the sum of the second dimension and the acceptable tolerance or the difference between the second dimension and the acceptable tolerance. Thus, each of the plurality of medical devices varies from another of the plurality of medical devices by the acceptable tolerance.

Abstract: Provided herein are devices and methods for connecting a transcutaneous external prosthetic device to a bone, such as a bone of an amputee. The device is a two-piece transcutaneous implant device to provide reversible connection for ease of implantation, reliability, and relatively easy access for removal, while maximizing tissue ingrowth to reduce risk of infection and attendant adverse outcomes. The devices provided herein comprise a prosthetic interface and a bone anchor. A through-hole that traverses a longitudinal length of the prosthetic interface and at least a longitudinal portion of the bone anchor receives a fastener to reversibly connect the prosthetic interface to the bone anchor implanted in bone. A connector may connect to a failsafe element which, in turn, connects to an external prosthetic device.

Abstract: An interspinous implant is provided. The interspinous implant can include a first member having a first end and a second end. At least one of the first end and the second end can include a mating portion. The interspinous implant can also include a second member, which can have a first end, a second end and at least one receiving portion formed adjacent to at least one of the first end and the second end. The at least one receiving portion can receive the mating portion to couple the first member to the second member at a desired orientation. The interspinous implant can also include a first extension, which can be substantially opposite the mating portion, and adapted to engage a spinous process. The interspinous implant can comprise a second extension, which can be substantially opposite the at least one receiving portion, and adapted to engage a second process.

Abstract: An implant system for total shoulder arthroplasties, hemi shoulder arthroplasties, and “reverse” total shoulder arthroplasties including a humeral stem having an enlarged head portion with interfaces adapted to removably receive various modular interchangeable components, such as articulating liners, spacers, and adapter inserts. The humeral stem functions as a universal platform that may be used in either conventional or “reverse” total shoulder arthroplasties, as well as hemi shoulder arthroplasties, and may remain implanted in place during a revision in which the implant system is converted between the foregoing configurations, for example.

Abstract: Dental prostheses are disclosed including a dental prosthesis that can comprise an abutment and a component stabilized with vitamin E. The abutment can be adapted to be secured in a patient's jaw. The component can be adapted to couple the abutment to a dental appliance.

Abstract: Methods for the prevention, or delayed onset or progression of, bone marrow edema or bone marrow lesion, and subchondral treatment to prevent the progression of osteoarthritis of a joint are disclosed. The methods involve treating the subchondral bone, while preserving, as much as possible, the joint's articular and cartilage surface. The methods could be performed before, during, or after an initial arthroscopic surgery to repair the joint. Associated devices and instruments for treatment of the subchondral bone are also disclosed.

Abstract: The present teachings provide one or more surgical implements for repairing damaged tissue, such as in the case of a spinal fixation procedure. A cross connector system for use during a spinal fixation procedure is provided. The system includes at least one bridge defining a coupling bore and having a pair of downwardly extending arms for coupling to a first bone engaging member. The system includes a contoured bar having a first end offset from a second end, and a bore having a central axis. The system includes an expansion ring received within the bore, and a locking device received through the expansion ring and the coupling bore. The locking device is operable in a first state in which the contoured bar is movable about the central axis of the bore and in a second state in which the contoured bar fixed relative to the central axis of the bore.