Abstract: A device for use in placing a prosthesis in a patient during joint replacement surgery is disclosed. The device may comprise a body formed using medical imaging data corresponding to an anatomic structure of the patient and a final installation position of the prosthesis. The body may extend between a lower surface and an upper surface and may have an aperture extending therethrough. The body may also have an anatomic alignment member extending outward from an outer surface of the body and include an inner surface opposite the outer surface. The inner surface may define at least part of the aperture. The prosthesis alignment member may extend from the inner surface and the prosthesis alignment member may include a prosthesis alignment surface configured to align with a prosthesis in the final installation position.

Abstract: An orthopedic joint replacement system is shown and described. The system includes a number of prosthetic components configured to be implanted into a patient's knee. The system also includes a number of surgical instruments configured for use in preparing the bones of the patient's knee to receive the implants. A method or technique for using the surgical instruments to prepare the bones is also disclosed.

Abstract: Embodiments of the invention relate to an ancillary surgical instrument including at least a first contact point to come into contact with a first reference point of an operating area; a second contact point intended to come into contact with a second reference point of the operating area; a contact area intended to come into contact with a third reference point of the operating area; a determination unit for determining an orientation reference of the ancillary instrument in a Galilean orientation reference; and a communication unit for communication the determined orientation reference.

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: A surgical kit suitable for repair of articular surfaces in the talocrural joint, includes: a surgical implant having a cap with an outer surface conforming to a talus dome surface and an inner surface having a central implant anchoring peg extending perpendicularly from said inner surface, a hollow tubular shell suitable for correct pre-drilling for implantation of the surgical joint implant in the dome of the talus, and a saw guide conforming and fixable to the lower portion of the tibia and providing saw guide surfaces in at least one plane, suitable for osteotomy of a lower portion of a tibia to expose the dome of the talus.

Abstract: Systems and methods to provide patient-specific cutting blocks that allow for bone resurfacing procedures, such as milling or burring, with simplified devices. A computer assisted surgical cutting block is produced having a surface region that matches with the surface region of a patient's bone to be altered. A cutting tool may be provided having a contoured bone mating surface and a contoured and patient-specific shaped cutting guide surface located in a plane above the bone mating surface. One or more channels are provided in the cutting block, and as the surgeon moves the cutting tool (a milling or burring, for example) in the channels, the tool cuts the bone both laterally along the surface of the bone and vertically into the bone according to the cutting guide surface and other preselected surface features of the cutting block.

Abstract: A tibial cutting guide includes upper and lower portions having patient-matched surfaces. The upper portion defines resection slots for forming resections about the tibial eminence. The lower portion defines two pin slots for receiving alignment pins such that in use the position of the resection slots relative to the tibial eminence can be adjusted by sliding the cutting guide along the alignment pins placed in the tibia through the pin slots. The lower portion defines a resection slot for guiding a saw blade to form a horizontal plateau resection, and two pin holes for receiving fixation pins. A method includes positioning a patient-matched cutting guide on the proximal tibia; intra-operatively adjusting the position of the cutting guide in two degrees of freedom by sliding the cutting guide along fixation pins placed in the tibia; and resecting the tibia about the tibial eminence.

Abstract: Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail.

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: A method for making a surgical guide for bone harvesting identifying in a three-dimensional image of a bone one or more sensitive anatomic structures and a volume of bone suitable for being removed. The volume is delimited by a portion of an outer surface of the bone defining a perimeter and by a mantle extending from the perimeter inside of the bone. The method also includes designing the surgical guide which includes defining a guide surface including a work area delimited by guide walls. The method also includes angling at least one of the guide walls so that the guide wall includes a face that constitutes a geometrical extension of a portion of the mantle when the guide is rested on the outer surface of the bone such that the face includes at least one segment forming a predetermined angle with respect to the guide surface.

Abstract: A humeral cut guide member for resectioning or resurfacing a humeral head, including a bone-engagement member including a first patient-specific bone-engagement surface that is complementary and made to substantially mate and nest in only one position on a specific patient's humeral head; a registration member connected to the bone-engagement member including a second patient-specific bone engagement surface that is sized and made to substantially mate and nest in only one position with the specific patient's bicipital groove; and a cut guide plate connected to the bone-engagement member and defining an elongated slot.

Abstract: A guide pin piercing jig includes a curved frame, a front cylinder unit provided at a front end of the frame, and a rear cylinder unit provided at a rear end of the frame, in which the front cylinder unit has a positioning projection and a boring aiming portion at a tip thereof, the rear cylinder unit has a plurality of parallel guide pin insertion cylinders into which to insert the guide pins and a tentative fixing unit provided at a tip of the rear cylinder unit, and the rear cylinder unit is provided at a rear end of the frame slidably so as be directed to a tip of the front cylinder unit. It becomes possible to aim at a proper portion of a living body bone through which to bore a bone tunnel and to pierce the living body bone with guide pins for hollow drills from behind the living body bone to the proper aiming portion in a proper direction.

Abstract: A surgical method for forming a void in bone includes the steps of positioning a support member securely within an intramedullary canal of a bone; attaching a guide member having a longitudinal axis to the support member in a fixed and offset relation to the intramedullary canal; connecting a cutting member having a cutting head to the guide member in a slidable arrangement along the longitudinal axis of the guide member such that the cutting head faces a first bone segment; and cutting the first bone segment along the longitudinal axis of the guide member, thereby forming a first offset bone void.

Abstract: An orthopedic device for correcting a femoral bone abnormality includes a patient-specific three-dimensional shell and a patient-specific guiding feature. The shell has an outer surface and an inner bone engagement surface customized in a pre-operating planning stage by computer imaging to closely mate and conform to and substantially cover a femoral head of a patient in only one position. The guiding feature is pre-operatively planned relative to the shell such that when the shell is fitted over the femoral head, the guiding feature can guide a removal tool for removing an abnormality portion of the proximal femur of the patient.

Abstract: Embodiments of the invention include instruments and methods for preparing a femur to receive a femoral component of a knee arthroplasty system, with some embodiments configured to enable anterior referencing techniques, posterior referencing techniques, and to facilitate intraoperative switching between anterior and posterior referencing techniques. Other embodiments of the invention include cutting blocks and methods for preparing a femur to receive a knee arthroplasty system femoral component, with some embodiments including cutting blocks that can be used in both an anterior referencing technique and a posterior referencing technique, thereby reducing the number of cutting blocks required to provide an instrument set capable of implanting all available sizes of femoral components with both anterior and posterior referencing techniques.

Abstract: A surgical device for osteotomy allows for accurate determination of the angle at which a bone in the human or animal body should be corrected, and for precisely maintaining the angle constant during the entire surgical procedure. The surgical device having on its distal end a circular segment fixed to a distal end of a first blade and further moveably connected to a distal end of a second blade. The distal end of the second blade is allowed to move along the circular segment, wherein the proximal ends of the first and second blade converge at an angle. At least a pair of pin guide openings are provided in parallel for inserting and positioning at least two parallel pins or drill bits. The surgical device provides unique fixed reference means allowing to perform a precise surgery according to predetermined parameters and angles even at the final stages of the operation.

Abstract: Method and apparatus for performing an anterior distal femoral resection. A distal femoral resection is formed and used as a surface from which to base an anterior distal femoral resection cutting guide apparatus. The cutting guide apparatus may include a position block and an attached cutting guide. The position block is placed against the anterior distal femoral resection, and the orientation of the anterior cutting guide is set, at least in part, based on the anterior distal femoral resection.

Abstract: A cutting system includes a cutting base and a first cutting guide. The cutting base has a body including a first flange, a second flange, and defines a first slot. A first set of holes is defined in the first flange, and a second set of holes is defined in the second flange. The first cutting guide has a body defining at least one opening. The first cutting guide also includes a set of pegs that extend inferiorly from the body. The set of pegs is sized and configured to be received within the first set of holes to align the at least one opening with the first slot in a first orientation and to be received within the second set of holes to align the at least one opening with the first slot in a second orientation.

Abstract: A method of changing a bone angle includes creating an osteotomy between a first portion and a second portion of a tibia of a patient; creating a cavity in the tibia by removing bone material along an axis extending in a substantially longitudinal direction from a first point at the tibial plateau to a second point; placing a non-invasively adjustable implant into the cavity, the non-invasively adjustable implant comprising an adjustable actuator having an outer housing and an inner shaft, telescopically disposed in the outer housing, and a driving element configured to be remotely operable to telescopically displace the inner shaft in relation to the outer housing; coupling one of the outer housing or the inner shaft to the first portion of the tibia; coupling the other of the outer housing or the inner shaft to the second portion of the tibia; and remotely operating the driving element to telescopically displace the inner shaft in relation to the outer housing, thus changing an angle between the first porti

Abstract: A guide device for assessing the length and offset of a hip of a patient is disclosed. The guide device includes an overlay portion and an alignment portion. The overlay portion is configured to enable assessment of the relative location of the guide device to the original femoral head of a patient using a marking on the overlay portion. Reference points for positioning the guide device are created on the femur. When the guide device is positioned at the reference points it can be used to position a replacement femoral head in the same position as the patient's original femoral head by aligning the replacement femoral head with the marking on the overlay portion.

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: 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: 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: 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 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: 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: 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: 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: 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: 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.