Abstract: A method and a surgical alignment system for use in the positioning of a prosthetic component on or in a bone of a subject. The system includes an intramedullary member and a jig member which are connectable to each other to position the jig member relative to the intramedullary member in a sagittal orientation. The jig 5 member includes an elongate arm and the jig member is moveable in an axial plane and at least rotatable in a coronal plane relative to the intramedullary member to align the elongate arm with the bony landmark.

Abstract: The invention relates to a method for constructing a patient-specific surgical guide comprising at least one contact element comprising a contact surface intended to match an anatomical structure to be treated in view of implantation of an implant and at least one guiding element for guiding a surgical instrument to treat said anatomical structure, said method comprising: receiving a non-segmented 3D medical image of the anatomical structure of the patient; determining, in said non-segmented 3D medical image, anatomical references of the patient; based on said anatomical references, positioning an implant model in the non-segmented 3D medical image; adjusting at least one of: a type, a size, a position and an orientation of the implant model with respect to the anatomical structure in the non-segmented 3D medical image; recording planning data including said adjusted type, size, position and orientation of the implant model; using a patient-specific surgical guide adapted to carry out implantation of the i

Abstract: A surgical instrument having a first assembly with a first radio-opaque portion providing a profile of a first portion of an intramedullary implant or canal in a bone, and a second assembly having a second radio-opaque portion providing a profile of a second portion of the intramedullary implant or canal. The surgical instrument may also include a third radio-opaque portion providing an alignment feature to provide a fluoroscopic planar check for the surgical instrument.

Abstract: Various surgical devices and methods are disclosed herein. Also disclosed is multi-component prosthesis, which can be used as an ankle prosthesis. One of the disclosed surgical alignment systems includes a guide arm, a ratchet arm frame configured to be coupled slidably to the guide arm, a ratchet arm configured to be coupled to the ratchet arm frame, and a sagittal sizing guide body configured to be coupled to the ratchet arm. The sagittal sizing guide body includes a first radiopaque object disposed at a first position and a second radiopaque object disposed at a second position that is spaced apart from the first position.

Abstract: A method of implanting a lateral unicondylar knee prosthesis in a lateral articulating portion of a femur having a lateral condyle for engagement with a tibia, the method including the steps of: bending a patients knee such that the knee is not in full extension; making an incision through the skin, muscle, and other soft tissue until the damaged bone surfaces are exposed; resecting an end portion of the lateral tibia; resecting an end portion of the lateral femoral condyle; attaching a tibial prosthetic component to the resected end portion of the tibia; attaching a lateral femoral condyle prosthetic component to the resected end portion of the lateral femoral condyle; determining the thickness of a mobile bearing member with the knee in full extension; and inserting the mobile bearing member between the tibial prosthetic component and the femoral prosthetic component.

Abstract: A knee arthroplasty assembly for use in a patient's knee joint including a tibia and a femur is disclosed. The assembly can include a tool, a first accessory, and a second accessory. The tool can include a tibial component configured for placement against the tibia and a femoral component configured for placement against the femur. The femoral component can be moveably coupled to the tibial component to place the patient's knee joint in tension by separating the tibia and the femur. The first accessory can be removeably coupled to the tibial component of the tool. The second accessory can be referenced to the first accessory and can have a reference indicator that references the femur for determining a size of the femur.

Abstract: According to the invention, the process includes the steps of: a) taking a sagittal preoperative x-ray of the vertebral column of the patient to be treated, extending from the cervical vertebrae to the femoral heads; b) on that x-ray, identifying points on S1, S2, T12 et C7; c) depicting, on the said x-ray, curved segments beginning at the center of the plate of S1 et going to the center of the plate of C7; e) identifying, on that x-ray, the correction(s) to be made to the vertebral column, including the identification of posterior osteotomies to make; f) pivoting portions of said x-ray relative to other portions of that x-ray, according to osteotomies to be made; g) performing, on said x-ray, a displacement of the sagittal curvature segment extending over the vertebral segment to be corrected; h) from a straight vertebral rod (TV), producing the curvature of that rod according to the shape of said sagittal curvature segment in said displacement position.

Abstract: Tools or other instruments can be used by a surgeon to complete an orthopedic procedure. One tool can include a resection tower and a valgus guide. The resection tower can include a cutting block and a dial coupled with the cutting block. The resection tower can be configured such that rotational movement of the dial, about an axis, effectuates movement of the cutting block along a plane substantially parallel with the axis. The dial, when rotated in a first direction, can move between a first position, which corresponds to a minimum cutting depth of the cutting block, and a second position, which corresponds to a maximum cutting depth of the cutting block. The valgus guide can be coupled with the resection tower and includes a rotatable member. The rotatable member can include an angular surface with one or more variable depth splines providing varus/valgus angle adjustment of the cutting block.

Abstract: A system for creating decision support material indicating damage to an anatomical joint of a patient. The system is configured to: i) receive a series of radiology images of at least a part of the anatomical joint; ii) obtain a three-dimensional image representation of the at least part of the anatomical joint; iii) identify tissue parts of the anatomical joint using image analysis; iv) determine damage to the anatomical joint by analyzing said image representation; v) mark damage to the anatomical joint in the obtained three-dimensional image representation; and vi) generate decision support material. The analysis comprises: detecting an irregular shape of a contour of a tissue part; and/or detecting that the intensity in an area within or adjacent to bone and/or cartilage parts differs from a predetermined value; and/or comparing at least one identified tissue part with a template representing a predefined damage pattern for an anatomical joint.

Abstract: Various surgical devices and methods are disclosed herein. Also disclosed is multi-component prosthesis, which can be used as an ankle prosthesis. One of the disclosed surgical alignment systems includes a guide arm, a ratchet arm frame configured to be coupled slidably to the guide arm, a ratchet arm configured to be coupled to the ratchet arm frame, and a sagittal sizing guide body configured to be coupled to the ratchet arm. The sagittal sizing guide body includes a first radiopaque object disposed at a first position and a second radiopaque object disposed at a second position that is spaced apart from the first position.

Abstract: A method of forming a bone cutting block includes: forming a plurality of saw slot plates and two side plates, the plurality of saw slot plates each including a plurality of ends opposing one another, each of the plurality of ends including a locating feature, the side plates including a plurality of locating features; and supporting the plurality of saw slot plates using the side plates, each locating feature of the plurality of saw slot plates being connected with a respective one of the plurality of locating features of the side plates and the side plates thereby opposing one another, the plurality of saw slot plates defining at least one slot therebetween which is configured for receiving a bone saw blade therethrough to make a predefined cut in a bone.

Abstract: A method of preparing a distal femur for a knee joint implant includes mounting a patient-specific bone engagement surface of a femoral alignment guide on a complementary surface of a distal femur of a patient. A plurality of alignment pins is inserted through a corresponding plurality of guiding bores of the femoral alignment guide into the distal femur. A cutting guide is mounted on first and second alignment pins of the plurality of alignment pins, and a first resection of the distal femur is made using the cutting guide while cutting through the femoral alignment guide.

Abstract: A bone cut positioning system and associated method are disclosed. The bone cut positioning system can include a positioning assembly, including a femoral attachment member, including a tongue with at least one fixation aperture configured to be fixed to a distal end of a femur. The positioning assembly can further include a light emitter mounting member configured to receive a light emitter, a channel configured to receive a depth selector slide, and a varus-valgus adjustment member configured to adjust a position of the positioning assembly relative to the femur to achieve a desired varus-valgus angle. A flexion-extension adjustment member can be configured to adjust a flexion-extension position of the positioning assembly relative to a flexion-extension of a knee joint and a guide member can be configured to extend from the depth selector slide.

Abstract: Method for rotating and increasing a distance of a patella from the trochlea of a subject includes creating an osteotomy in a tibia of the subject, and inserting, along an axis of insertion, an orthopedic implant into the osteotomy, bone graft material being coupled to the orthopedic implant. The method also includes rotating a patella of the subject, via a patellar tendon of the subject, about the axis of insertion, by rotating a tuberosity of the tibia of the subject about the axis of insertion, and increasing a distance of the patella from a trochlea of a femur of the subject, via the patellar tendon of the subject, by pivoting the tuberosity of the tibia with respect to a point of contact between the tuberosity of the tibia and another portion of the tibia. The implant is shaped to define one or more passageways passing through the implant.

Abstract: A knee arthroplasty system for use in a patient's knee joint comprises a spacer block instrument including a base portion, a tibial component extending from the base portion and configured for placement against a tibia, and a femoral component configured for placement against a femur. The femoral component is rotatably coupled to the tibial component. The system further includes one or more spacer block shims structured for removable attachment to the tibial component.

Abstract: A resection guide locator includes a bone engagement portion with surfaces that are complementary to the surface topographies of a bone to be resected during surgery. A housing includes a socket defined by a resilient annular wall that is sized and arranged so to accept a resection guide by press-fit to thereby position and hold the resection guide within he socket. The resection guide is maintained in a predetermined, preferred position while the surfaces are releasably locked in position on the bone. A method is disclosed for forming and using the resection guide locator.

Abstract: A cutting guide for performing a bone osteotomy procedure is disclosed. The cutting guide includes a first arm having a first cutting guide surface formed therein, a second arm having a second cutting guide surface formed therein pivotably connected to the first arm and a distractor operatively connected to the first arm. The cutting guide is adapted to be affixed to the bone such that the first cutting guide surface is open to the second cutting guide surface. The first arm and second arm are rotatable with respect to each other such that manipulation of the distractor creates a force between the first arm and the second arm causing rotation of the first arm and second arm relative to each other. A method for using the cutting guide in a bone osteotomy procedure is also disclosed.

Abstract: A bone plate configured to accommodate fixation devices (such as screws, for example) inserted at various angles. The bone plate is formed of a material softer than the material of the fixation devices, and is provided with fixation holes with rounded, curved interior walls (i.e., non-threaded holes) that allow the fixation devices to be inserted at various angles. The fixation holes have a diameter smaller than that of the fixation devices. As a result of the difference between the materials of the plate and of fixation devices, and of the difference between the diameters of the fixation holes and of the fixation devices, the fixation devices deform the interior walls of the fixation holes, therefore self-threading the holes at an advantageous angle.

Abstract: A surgical assembly, the assembly including a first guidewire, a second guidewire, in which each of the first guidewire and the second guidewire are configured to be received by a bone block, a first suture loop, a second suture loop, a first locking component, and a second locking component, in which the first locking component is coupled to the first suture loop and the second locking component is coupled to the second suture loop.

Abstract: An instrument for clamping and trimming the bone tendon portion of a graft to a desired size, comprising a pair of elongated handles each having jaws at one end; the handles being hinged together at a pivot point allowing the jaws to open and close in a scissor arrangement, the jaws defining a generally U-shaped trapezoidal receptacle when the jaws are closed about the bone tendon portion of the graft to be trimmed and the jaws comprising respective upper guide surfaces along their upper edges whereby, when a bone tendon portion is positioned in the U-shaped trapezoidal receptacle, the upper guide surfaces function as a guide for a blade of a saw to trim any excess portion of the bone tendon portion protruding above the upper guide surfaces.

Abstract: Equipment for inserting a joint prosthesis, in particular a femur component of a knee prosthesis, comprises a base frame having a guiding plate and a laterally protruding primary gage, a fastening device on the bone, and a curved milling gage having a main body and a guiding piece, which can be moved along a curved guiding path relative to the main body and has a receptacle for an abrasive tool. Furthermore, the equipment comprises an aligning device, which places the curved milling gage in a clearly defined relative position when the curved milling gage is inserted into the base frame. Due to the precise positioning in conjunction with the curved guiding path, the mounting seat can be prepared easily without damaging surrounding tissue. Thus, even large and complexly shaped prostheses, such as knee joint prosthesis, can be reproducibly inserted in an easy and safe manner.

Abstract: A femoral sizing jig for use in total arthroplasty of left and right knees, comprises a femoral body, an external-rotation-angle arm which is, preferably pivotable, relative to the femoral body for setting an external angular rotation of a left or right femur, at least one of a cutting-jig guide and a cutting jig which is, preferably slidable, relative to the femoral body and in unison with movement of the external rotation-angle arm, and a medial posterior-condylar locator which is movable in unison with the movement of the external-rotation-angle arm, so as to maintain a fixed or substantially fixed relative distance with a medial side of the at least one of a cutting-jig guide and a cutting jig. A posterior-referencing femur resecting system using said femoral sizing jig and a method of resecting a femur at a knee joint relative to the medial posterior condyle are also provided.

Abstract: Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, are described herein. Methods and apparatus for preparing a distal femur for a femoral implant as well as methods and apparatus for preparing a proximal tibia for a tibial implant are described. These methods and apparatus, in at least some embodiments and uses, facilitate decreasing the complexity of knee arthroplasty procedures such as bicruciate retaining procedures, while maintaining, if not improving on, the safety, accuracy and/or effectiveness of such procedures.

Abstract: Patient-specific guides for a tibial tubercle osteotomy are provided. The guides include a guide body defining a portion with a bone-engaging surface that conforms as a negative surface to a corresponding surface of a specific patient's tibia, and a guide portion that guides a surgical instrument to a specific location on the specific patient's tibia, wherein the bone-engaging surface and guide portion are configured during a pre-operative planning stage. Methods for performing a tibial tubercle osteotomy with the patient-specific guides are also provided.

Abstract: An instrumented linkage system (100) to facilitate accuracy and efficiency of a surgical procedure is disclosed. The linkage system may be directly attached to a bone and used to register the bone to a computer. The linkage system may also be used to verify the accuracy and alignment of planned resections relative to the bone.

Abstract: Devices and methods are provided for positioning and forming bone tunnels. In one embodiment, a surgical drill guide apparatus is provided. The apparatus can include a first guide member having a longitudinal passageway extending therethrough for aiming a first guide pin along a first path to form a first bone tunnel. The apparatus can also include a second guide member having a longitudinal passageway extending therethrough for aiming a second guide pin along a second path to form a second bone tunnel. The first and second guide members can extend at an angle relative to one another and they can be offset such that axes of the guide members do not intersect.

Abstract: A patient-specific unicompartmental tibial guide has a patient-specific body with an inner surface. The inner surface is preoperatively configured to nestingly conform and mate in only one position with an anterior portion and a proximal portion of a tibial bone of a specific patient. The tibial guide includes a vertical resection channel having a variable width preoperatively configured for guiding a vertical resection through the proximal portion of the tibial bone.

Abstract: Methods and systems for retention and use of historical patient-specific information in selecting and/or designing patient-adapted articular repair systems are disclosed herein. Various embodiments include articular repair system components that are selected and/or designed based, at least in part, on both current patient-specific information and historical patient-specific information. According to certain embodiments, a method of making an implant component for intended treatment of a diseased or damaged joint of a patient is disclosed.

Abstract: An intervertebral prosthesis for insertion by posterior approach, designed to be inserted in pairs between two vertebral bodies, said prosthesis consisting of a prosthesis body extending in a longitudinal direction of intervertebral insertion, including peripheral faces delimiting, on the inside, an inner space for receiving a bone substitute. The prosthesis includes a prosthesis body of which the lower and upper bearing faces have a convex profile having continuously variable convexity in the longitudinal direction. The invention is intended for the treatment of individuals suffering from disc degeneration in the thoracic or lumbar vertebrae.

Abstract: A method of preparing a distal femur for a knee joint implant includes mounting a patient-specific bone engagement surface of a femoral alignment guide on a complementary surface of a distal femur of a patient. A plurality of alignment pins is inserted through a corresponding plurality of guiding bores of the femoral alignment guide into the distal femur. A cutting guide is mounted on first and second alignment pins of the plurality of alignment pins, and a first resection of the distal femur is made using the cutting guide while cutting through the femoral alignment guide.

Abstract: A method for repairing a soft tissue or bone defect can include selecting one of a plurality of sizing guides having a base perimeter size corresponding to a size of the defect, where each base has a different perimeter size and a plurality of apertures spaced apart a predetermined distance from each other, with the predetermined distance being the same for each of the sizing guides. The selected sizing guide base can be positioned against a distal end of the femur relative to the defect. A plurality of guide wires can be positioned through the plurality of apertures in the sizing guide base and the guide wires can be fixed to the femur such that the guide wires are parallel to each other. A first guide can be positioned over the guide wires and against the distal end of the femur to guide a first cutting member relative to the femur.

Abstract: A system for creating decision support material indicating damage to an anatomical joint of a patient. The system is configured to: i) receive a series of radiology images of at least a part of the anatomical joint; ii) obtain a three-dimensional image representation of the at least part of the anatomical joint; iii) identify tissue parts of the anatomical joint using image analysis; iv) determine damage to the anatomical joint by analyzing said image representation; v) mark damage to the anatomical joint in the obtained three-dimensional image representation; and vi) generate decision support material. The analysis comprises: detecting an irregular shape of a contour of a tissue part; and/or detecting that the intensity in an area within or adjacent to bone and/or cartilage parts differs from a predetermined value; and/or comparing at least one identified tissue part with a template representing a predefined damage pattern for an anatomical joint.

Abstract: A cage assembly for implanting between and securing together two portions of bone in a tibial tuberosity advancement includes an elongated cage body having a first end and a second end, and a securing member. The first end of the cage body and the securing member are engagable with each other so as to interlock in a manner that prevents the securing member from moving longitudinally away from the cage body. The securing member is arrangable, when interlocked with the cage body, such that it has a portion which extends laterally outwards beyond each opposing side of the cage body for use in attaching the securing member to the portions of bone. Different sizes of securing member may be engaged with the cage body. The cage assembly therefore provides a convenient and flexible approach to tibial tuberosity advancement procedures.

Abstract: Adjustable allograft templates and methods of use are disclosed where a template for resecting a tissue region may generally comprise a template frame having a surface for contacting the tissue region and which defines an open area of tissue to be resected. A frame assembly along the template frame may be translatable relative to the template to adjust a size of the open area of tissue to be resected. One or more inner guidance slots may be defined along the frame such that the inner guidance slots are spaced relative to one another to define the tissue within the open area to be resected from a patient. Additionally, one or more outer guidance slots may also be defined along the frame and aligned adjacent to the inner guidance slots. The outer guidance slots may be spaced relative to one another to define the tissue to be resected from a donor.

Abstract: A display system compatible with a magnetic resonance imaging (MRI) apparatus disposed in a magnet room for producing video images to a patient in an MRI magnet tunnel, the images having a three-dimensional (3D) effect. An MRI-compatible 3D display includes a display panel configured to generate optical images having 3D content, and RF and electromagnetic interference filtering. A Faraday cage encloses the display panel, and includes an optically transparent window panel having an electrically conductive mesh and a layer of transparent optically isotropic material.

Abstract: An adjustable device for defining a cutting plane for bone resection comprising a base positionable on the bone and a cut-guiding element placeable on the base. The cut-guiding element includes a cut-guiding structure for guiding a cutting tool in the cutting plane, the cut-guiding element being tiltable relative to the base about at least one first axis by an adjustable tilt mechanism to adjust the angle of the cutting plane. The tilt mechanism includes a rectilinear guide and a slide that is linearly displaceable along the guide in the longitudinal direction. The tilt mechanism includes a guide portion relative to which an effective portion of the slide is displaced; the guide portion and the effective portion having interacting structures forming a sliding guide effective at a right angle to the longitudinal direction.

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: A bone cutting block includes: a plurality of saw slot plates each including a plurality of ends opposing one another, each of the plurality of ends including a locating feature, the plurality of saw slot plates defining at least one slot therebetween which is configured for receiving a bone saw blade therethrough to make a predefined cut in a bone; and two side plates opposing one another, including a plurality of locating features, and supporting the plurality of saw slot plates, each locating feature of the plurality of saw slot plates being connected with a respective one of the plurality of locating features of the side plates.

Abstract: An orthopedic surgical instrument assembly is disclosed. The assembly includes an orthopedic surgical instrument including a first surface, and a measurement gauge removably coupled to the orthopedic surgical instrument. The gauge includes an arm having a tip positioned proximal to the orthopedic surgical instrument, and a plurality of markings defined on the arm. Each marking indicates a predetermined distance from the first surface of the orthopedic surgical instrument. The assembly may be used during an orthopedic surgical procedure on a femur, which is also described herein.

Abstract: A cut block positioning jig including a first alignment member, a second alignment member, and both first and second guide members. The first alignment member is movable towards and away from a patient's bone to which the positioning jig is mounted to arrange the jig at a predetermined position relative to the bone based on x-rays of the patient. The second alignment member is movable towards and away from the bone to arrange the jig at the predetermined position relative to the bone. The first and second guide members are configured to direct cut block support members to the bone to couple a cut block to the bone to provide the bone with patient-specific cuts.

Abstract: A knee arthroplasty system for use in a patient's knee joint comprises a spacer block instrument including a base portion, a tibial component extending from the base portion and configured for placement against a tibia, and a femoral component configured for placement against a femur. The femoral component is rotatably coupled to the tibial component. The system further includes one or more spacer block shims structured for removable attachment to the tibial component.

Abstract: A method and apparatus for the collection, transportation and analysis of gas samples which may be required in various scientific, environmental and natural resource contexts is provided. The apparatus comprises a sampling container assembly for sampling a fluid. The container assembly comprises a body defining a sampling chamber having a first end and a second end, a first valve assembly fluidly coupled with the first end and a reactant material positioned within the sampling chamber for reacting with the fluid. After collection of the sample in the sampling container assembly, hazardous fluids are converted to non-hazardous materials that can be transported without additional hazardous material restraints. Further, the flow through design of the sampling container assembly allows for the collection of gases such as H2S at low concentrations by flowing the gas over the reactant materials for longer periods of time.

Abstract: Methods and devices for stabilizing ligaments of the canine stifle joint are described. In one embodiment, a device for promoting stability of the stifle joint in a canine subject is provided. The device includes a buttress comprising an intra-articular portion and an extra-articular portion, where the intra-articular portion of the buttress is fenestrated. The device also includes a keel coupled to the extra-articular portion of the buttress, and one or more fasteners configured to attach the device to the stifle joint.

Abstract: A method of reproducing a central axis of a femoral neck prior to resection during an implantation process includes the step of attaching a frame to the acetabulum of a patient, wherein the frame includes first and second movable arms and a lockable swivel bearing. The method further includes the steps of orienting and locking the swivel bearing in position and utilizing the position of the swivel bearing to position acetabular instrumentation to match a planned acetabular implant orientation.

Abstract: A resection guide locator includes a bone engagement portion with surfaces that are complementary to the surface topographies of a bone to be resected during surgery. A housing includes a socket defined by a resilient annular wall that is sized and arranged so to accept a resection guide by press-fit to thereby position and hold the resection guide within the socket. The resection guide is maintained in a predetermined, preferred position while the surfaces are releasably locked in position on the bone. A method is disclosed for forming and using the resection guide locator.

Abstract: An alignment guide for aligning instrumentation along a proximal femur includes a neck portion configured to wrap around a portion of the neck of the femur, a head underside portion configured to abut a disto-lateral portion of the femoral head and a medial head portion configured to overlie a medial portion of the head. Portions of the guide can have an inner surface generally a negative of the femoral bone of a specific patient that the guide overlies; such surfaces can be formed using data obtained from the specific patient. The neck portion can be configured to rotationally stabilize the guide by abutting and generating a first gripping force on the neck. The femoral head portions can be configured to grip the head portion of the femur and can support a bore guide that is configured to guide an instrument to the femur in a specified location and along a given axis.

Abstract: The invention includes a system, method and kit for preparation of a bone. One aspect of the present invention is a bone preparation system comprising a cutting instrument and a guiding element. The cutting instrument includes a distal attachment feature and a distal region. The guiding element includes a proximal attachment feature and a guiding surface. When the proximal attachment feature of the guiding element is engaged with the distal attachment feature of the cutting instrument, the cutting instrument can pivot about the proximal attachment feature until the distal region contacts the guiding surface.

Abstract: A method of preparing a distal femur for a knee joint implant includes mounting a patient-specific bone engagement surface of a femoral alignment guide on a complementary surface of a distal femur of a patient. A plurality of alignment pins is inserted through a corresponding plurality of guiding bores of the femoral alignment guide into the distal femur. A cutting guide is mounted on first and second alignment pins of the plurality of alignment pins, and a first resection of the distal femur is made using the cutting guide while cutting through the femoral alignment guide.

Abstract: A volar fixation system includes a plate intended to be positioned against the volar side of the radial bone. The plate includes threaded holes for receiving fasteners which lock relative to the plate.

Abstract: A method for implanting porous spacers (100) for foot and ankle fusion between separate bones of a joint or between two segments of a single bone following an osteotomy procedure. Such spacers may be used in conjunction with an ankle resection system which includes a resection frame (150 and a resection guide (1780). The resection frame can be anchored to the distal tibia and/or the talus and provides an opening (155) through which a bone cutting element can pass for cutting underlying bone. The resection guide can include one or more cutting slots (160,171,172) and the resection guide can be coupled to the resection frame with the one or more cutting slots positioned over the opening in the resection frame so that the bone cutting element can pass through the one or more cutting slots and through the opening in the resection frame for cutting the distal tibia and/or the talus.