Abstract: Bone plates having an adjustable joint, and methods of using the bone plates to fix bones.

Abstract: A system for accessing extra articular lesions or abnormalities or intra osseous lesions or abnormalities or bone marrow lesions using intra articular localization has a guide, an arm, a pair of attachment assemblies and a tubular sleeve. The guide component has a first portion and a second portion. The first portion has a first slotted opening extending a length from a first end. The second portion has an arcuate curvature extending from the first portion to a second end of the guide component with an elongated second arcuate slot in the second portion. The first attachment assembly is configured to be movably adjustable within the length of the first slotted opening. The second attachment assembly is configured to be movably adjustable along the elongated second arcuate slot.

Abstract: A bone screw including a head portion, a neck portion, and a shaft portion is provided. The shaft portion includes a first end, an opposite second end, a helical thread form, and a shank. The first end of the shaft portion is attached to the neck portion, and the helical thread form extends around the shank between the first end and the second end. The thread form terminates at a thread-termination surface adjacent the first end of the shaft portion, where the thread-termination surface affords an abrupt transition into the shank.

Abstract: A system and method for performing surgical procedures within a body cavity, e.g. abdomen, uses a magnetized device is utilized to allow a surgeon to control intra-abdominal organs and objects. The system and method allows a surgeon to perform an intra-abdominal procedure without the need to position surgical tools inside of the body cavity. Additional surgical ports are not necessary as the magnetized device allows the surgeon to retract or position various objects within the abdomen.

Abstract: A system and method for performing surgical procedures within a body cavity, e.g. abdomen, uses a magnetized device is utilized to allow a surgeon to control intra-abdominal organs and objects. The system and method allows a surgeon to perform an intra-abdominal procedure without the need to position surgical tools inside of the body cavity. Additional surgical ports are not necessary as the magnetized device allows the surgeon to retract or position various objects within the abdomen.

Abstract: A trial liner for use in a hip arthroplasty surgical procedure is disclosed. The trial liner includes a rim and a semi-hemispherical body attached to the rim. The semi-hemispherical body includes a concave inner wall extending inwardly from the rim to define a cavity, a convex outer wall extending from the rim opposite the inner wall, and an interior wall extending between the inner wall and the outer wall and defining an opening at an apex of the semi-hemispherical body. The semi-hemispherical body is adapted to deflect and modify the opening, when pressed against a head of a screw, to accept the head of the screw within the opening. A system that includes the trial liner and the screw, and a method for using the system in a surgical procedure, are also disclosed.

Abstract: A curved inflatable bone tamp includes an outer shaft defining a passageway. An inner shaft is positioned within the passageway. The inner shaft extends between opposite first and second end. The inner shaft defines a lumen. The inner shaft is curved between the first end and the second end. A first leg of a balloon is coupled to the outer shaft and a second leg of the balloon is coupled to the inner shaft such that a material can flow through the lumen and into the balloon to inflate the balloon. The balloon includes a wall having a variable thickness between the legs when the balloon is uninflated and a uniform thickness between the legs when the balloon is inflated. Kits, systems and methods are disclosed.

Abstract: Systems and methods for placement of both the prosthetic acetabular cup and the prosthetic femoral head which takes account of the patient's particular anatomy, with inter-operative testing of the patient's body to find an optimum positioning (angles) for the components. The system allows a procedure with less pre-operative and inter-operative imaging, providing for reduced radiation exposure for doctors and patients.

Abstract: An access assembly includes an instrument valve housing and a valve assembly disposed within the instrument valve housing. The instrument valve housing includes upper and lower housing sections. The valve assembly includes a centering mechanism, a seal assembly, and a guard assembly. The centering mechanism is configured to bias the valve assembly towards a generally centered position within the instrument valve housing. The centering mechanism includes a base seal member having an annular base and a flange portion. The flange portion includes an arcuate portion configured to adjustably engage first and second surfaces of the instrument valve housing in a sealing relation. The seal assembly is attachable to the centering mechanism. The seal assembly is configured to engage a surgical instrument inserted into the access assembly in a sealing relation. The guard assembly is attachable to the centering mechanism.

Abstract: A system for use during an orthopaedic surgical procedure includes a femoral broach, an acetabular cup component, and an acetabular alignment guide. The femoral broach includes a mounting post positioned at a superior end of an elongated body. The cup component includes a distal rim and a curved surface extending inwardly from the rim to define a cavity. The alignment guide includes a distal end configured to be coupled to the mounting post and a proximal end configured to be coupled to the distal rim. When coupled to the femoral broach, the guide instrument is sized to orient the acetabular cup component relative to the femoral broach. The acetabular cup component may be a prosthetic cup component or a trial instrument corresponding to the prosthetic cup component.

Abstract: The present invention relates to a positioning device comprising a plate holder with a first fastening device for releasably fastening the plate holder to the plate, and with a second fastening device; a receptacle for an adjustment device, wherein the adjustment device comprises at least one navigation device, and wherein the navigation device is designed to receive, at least in sections, an interlocking device, and/or an instrument for acting on the interlocking device and/or; wherein the receptacle comprises at least one third fastening device or is connected thereto; wherein one element from the group consisting of the second fastening device and the third fastening device comprises a hole section with a plurality of holes, and wherein the other element of the group is designed as an insertion section, wherein the insertion section and the holes are designed for releasably connecting the second fastening device to the third fastening device.

Abstract: A reaming instrument includes a reamer head having a cutting face rotatable about a cutting face axis and a drive shaft operably connected to the cutting face at a point spaced radially outwardly from the cutting face axis.

Abstract: An acetabular cup guide can include a distal end (11) shaped to allow removable connection to a surgical instrument (16), a proximal end including one or more contact surfaces (4, 5) shaped to conform to an acetabulum, and a central proximal-distal axis extending through the acetabular cup guide. At least one of the one or more contact surfaces can be configured such that it is deflectable towards the central proximal-distal axis in order to reduce an axial cross-section of the acetabular cup guide.

Abstract: The present device described herein is intended to effect the removal of an intramedullary component of an orthopaedic prosthetic implant. The extraction device utilizes a hook which can be secured to the implant, particularly the neck of a femoral prosthetic component. The hook is attached to an elongated member that contains two striking surfaces. A force applied to the striking surface(s) is transmitted to the prosthesis so as to extract the implant from the intramedullary cavity of a bone.

Abstract: A system for use during a surgical procedure includes a control unit configured to obtain a first anatomical characteristic of a patient; measure a second anatomical characteristic of a patient; create a targeted second anatomical characteristic; and convert at least one of the measured second anatomical characteristic and the targeted second anatomical characteristics to a patient position.

Abstract: An improved low cost, preferably disposable instrument guide adapted to carry an access instrument used in accessing a compromised portion of a bone structure has a single piece guide body. The guide body has a first referencing arm and second referencing arm. The first referencing arm has a first end portion, wherein the first end portion of the first referencing arm has a reference structure integral therewith and wherein the reference structure defines a virtual axis. The second referencing arm is integral to the first reference arm and has at least one guide opening with a guide axis extending to intersect the virtual axis. The at least one guide opening is located at a fixed angle on the second referencing arm.

Abstract: An expandable reamer includes, inter alia, an outer tube, an inner shaft, a movable blade, and an actuator assembly. The expandable reamers can be used to remove diseased bone.

Abstract: An expandable laminoplasty device has a superior plate, an inferior plate, threaded or racked gear post having external threads or gear teeth, the post affixed to one of the superior plate or the inferior plate, and a gear nut or pinion gear, the gear has internal threads or external gear teeth configured to engage external threads or gear teeth of the post. The gear is held in one of the superior plate or inferior plate not affixed to the post and wherein the superior plate or inferior plate not affixed to the post has an end with a slot or channel to receive the post and a side opening to receive and hold the gear.

Abstract: A surgical instrument includes a first member defining an axis. A second member is axially translatable relative to the first member. A cutting element is connected with the second member and has a cutting surface. The cutting element is rotatable relative to the second member to transversely move cut tissue. Systems, implants and methods are disclosed.

Abstract: Methods are provided for planning, performing, and assessing of surgical correction to the spine during a spinal surgical procedure. These methods are implemented by a control unit through a GUI to digitize screw locations, digitize anatomical reference points, accept one or more correction inputs, and generate one or more rod solution outputs shaped to engage the screws at locations distinct from the originally digitized locations.