Abstract: A guide for assisting with attachment of a stock prosthetic implant to a patient tissue includes a lower guide surface configured to contact an upper implant surface of the stock prosthetic implant when a lower implant surface of the stock prosthetic implant contacts the patient tissue. An upper guide surface is accessible to a user when the lower guide surface is in contact with the upper implant surface. At least one guiding aperture extends through the guide body between the upper and lower guide surfaces at a predetermined aperture location with respect to the guide body and defines a predetermined target trajectory through the guide body. At least one of the target trajectory and the aperture location of each guiding aperture is preselected responsive to preoperative imaging of the patient tissue. A method of assisting with attachment of a stock prosthetic implant to a patient tissue is also provided.

Abstract: The present invention relates to one or more tibial spacer blocks used during knee arthroplasty, each configured to be temporarily positioned upon a resected proximal portion of a tibia (essentially mimicking the tibial component of the knee prosthesis), for performing a range of motion analysis and for checking flexion and extension gaps prior to cutting the distal or posterior femur. Preferably, the spacer blocks each include an attachment arrangement configured and arranged to mate with a complementary attachment arrangement of an alignment tower and/or a femoral cutting guide. The alignment tower, which is configured to be used with an alignment rod, is used for verifying the alignment of the limb's mechanical axis when the spacer block is positioned between the tibia and the femur. The femoral cutting guide is used for guiding a cutting member into proper orientation for resecting a distal or posterior portion of a femur.

Abstract: A surgical apparatus includes an orientation sensor that detects an actual orientation of a surgical tool. The apparatus also includes an orientation feedback device that selectively provides an orientation feedback signal. Moreover, the apparatus includes a controller that causes the orientation feedback device to provide the orientation feedback signal when the actual orientation of the surgical tool detected by the orientation sensor is substantially equal to a predetermined target orientation of the surgical tool.

Abstract: Thumb carpometacarpal (CMC) joint implants include a trapezium implant defining an articulating surface and a cooperating first metacarpal implant with a base portion of the first metacarpal defining an articulating surface. The first metacarpal base articulating-surface is configured to articulate against the trapezium implant articulating surface.

Abstract: An extramedullary cut guide alignment assembly allows various adjustments to the cut guide without introducing bending stresses in the rest of the assembly. More particularly, the angular orientation of the cut guide with respect to the tibia may be freely changed during use, while maintaining the angular orientation of the proximal fixation arm of the alignment assembly with respect to the proximal tibial surface to which the arm is affixed. To achieve this decoupling of the angular orientations of the fixation arm and cut guide, the proximal fixation arm is pivotably mounted to the cut guide alignment assembly. Thus, the alignment assembly may be adjusted as necessary to achieve a desired angular orientation of the cut guide mounted thereto, while the pivotable junction between the alignment assembly and the proximal fixation arm automatically adjusts to accommodate the changing angular arrangement.

Abstract: A patellar 3-D guidance tool includes a template. The template includes at least one contact surface for engaging a surface of the patella. The at least one contact surface substantially conforms with the surface associated with the patellar. At least one guide aperture directs movement of a surgical instrument, wherein the shape and/or position of the guide aperture is based, at least in part, on three or more anatomic reference points associated with the patellar.

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: The invention provides a guide for controlling a surgical instrument, that includes a cutting member configured to resect a portion of anatomy and a sheath. The sheath may have a circular connecting portion with an inner diameter substantially the same as the outer diameter of the surgical instrument to receive the surgical instrument. The sheath may also include at least two distally extending arms connected to the circular connecting portion and a ring connected to the distal portion of the at least two distally extending arms. The sheath may also include a distally extending extension connected to the ring. The guide has a superiorly extending guard connected to the distal portion of the extension and a projection member positioned on a superior surface of the guard. The projection member includes a generally circular base and circular platform that has a diameter larger than the generally circular base.

Abstract: A positioning block for use in knee surgery includes a rotational mounting removably engageable to the bone element by a multi-axial fastener such that the mounting element is selectively rotatable relative to the bone element about at least two substantially perpendicular axes of rotation. A guide body portion is engaged with the rotational mounting element such that it is translatable relative thereto along while being rotationally fixed relative to the mounting element. The guide body portion is moveable relative to the bone element in at least three degrees of freedom, the three degrees of freedom including at least two rotational degrees of freedom and at least one translational degree of freedom. A trackable member on the guide body portion is identified and tracked by a computer assisted surgery system.

Abstract: A device for partial acetabular replacement includes a patient-specific acetabular guide. The acetabular guide has a first surface configured to nestingly mate in only one position to the patient's acetabulum. The acetabular guide includes a patient-specific guiding formation configured to guide a cutting tool to remove damaged tissue from a defect of the patient's acetabulum and prepare a patient-specific implantation slot corresponding to the defect after removal of the damaged tissue. A patient-specific partial acetabular implant can be configured to nestingly mate with the patient-specific implantation slot.

Abstract: Patient specific shoulder component implant instruments are described for hemi and total, normal and reverse shoulder arthroplasty.

Abstract: A customized patient-specific orthopaedic surgical system including a first surgical block, a second surgical block, and a computer-controlled milling machine. The first surgical block includes a first bone-facing surface having a first customized patient-specific negative contour to receive a first corresponding contour of a bone of a patient and a first mounting surface. The second surgical block includes a second bone-facing surface having a second customized patient-specific negative contour to receive a second corresponding contour of the bone of the patient and a second mounting surface to be separately mated with the first mounting surface. The computer-controlled milling machine includes a third mounting surface to be separately mated with the first mounting surface of the first surgical block.

Abstract: Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Abstract: A method for using a jig to position an implant at an implantation site of a bone. The method includes the following: tapping the implantation site using a tapping device; axially threading the jig into the implantation site using an insertion tool; adjusting the position of the jig at the implantation site as necessary by axially rotating the jig relative to the bone; axially and substantially non-rotationally inserting the implant through the jig whereby the implant contacts a substantially smooth interior surface of the jig to support the implant at the implantation site such that the implant does not substantially contact an interior surface of the bone canal at the implantation site; and securing the implant at the implantation site using bone cement.

Abstract: An instrument kit for reaming a cavity within a resected head of a bone is provided. The kit includes a reaming guide, at least two adaptor sleeves and a reamer. The reaming guide includes an elongate stem portion insertable into a cavity extending into the bone from a resection surface at the head of the bone and a neck portion. The at least two adapter sleeves are mountable upon the reaming guide. Each adapter sleeve has a longitudinal axis, being generally cylindrical and a bore configured to receive part of the neck portion of the reaming guide. When the adapter sleeve is mounted upon the neck portion of a reaming guide inserted into a cavity in a bone the reamer is arranged to ream a cavity into the resection surface of the bone around the neck portion.

Abstract: A method for correcting an angular deformity in a bone includes inserting a guide wire within a physis of a bone having an angular deformity, the physis extending between a first side the bone on which the guide wire is inserted and an opposing second side of the bone. The guide wire is used to guide a link to the physis. The link is then secured to the first side of the bone so that the link spans across the physis and restricts the growth of the physeal tissue of the physis on the first side of the bone. The physis is then allowed to generate more physeal tissue on the second side of the bone than on the first side of the bone so that the angular deformity of the bone is reduced.

Abstract: An improved method of performing surgery on a joint in a patient's body, such as a knee, includes making an incision in a knee portion of one leg while a lower portion of the one leg is extending downward from an upper portion of the one leg and while a foot connected with the lower portion of the one leg is below a support surface on which the patient is disposed. The incision is relatively short, for example, between seven and thirteen centimeters. A patella may be offset from its normal position with an inner side of the patella facing inward during cutting of a bone with a cutting tool. During cutting of the bone, one or more guide members having opposite ends which are spaced apart by a distance less than the width of an implant may be utilized to guide movement of a cutting tool.

Abstract: Surgical implants for neighboring bones are disclosed herein. Preferred implants are configured to be implanted into the scaphoid and lunate. Preferred implants include a first plate configured to be implanted into the scaphoid and a second plate configured to be implanted into the lunate wherein said first and second plates are couple together by a rotatable rod.

Abstract: Implants, surgical methods, and instrumentation for treating femoroacetabular impingement. In some embodiments, implants are provided or formed on the acetabulum to replicate the anatomy of the acetabulum (e.g., the acetabular rim and/or labrum, the bearing surface in the acetabulum, cartilage in the acetabulum, etc.). Also provided are embodiments of materials and instruments for use in installing and/or forming such implants on the acetabulum. Further provided are embodiments of guide jigs for use in preparing the acetabulum to receive such implants.

Abstract: A cutting guide assembly is provided for resecting a head of a bone. The cutting guide assembly includes an elongate support rod and at least one cutting plate couplable to the support rod, the at least one cutting surface defining a cutting surface arranged such that when coupled to the support rod, the bone can be cut to form a resection surface by aligning a cutting tool with the cutting surface. The support rod is configured to be partially disposed in and rotatable within a cavity extending into the head of the bone, defines a longitudinal axis and including a reference formation.

Abstract: Disclosed herein are tools for repairing articular surfaces repair materials and for repairing an articular surface. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Abstract: Improved instruments (tools) and surgical techniques are provided for use in surgical procedures that treat femoroacetabular impingement of both the Cam and Pincer types.

Abstract: The present invention comprises a set of instruments and a method for their use in preparing a knee joint to receive knee implants. The inventive instruments and method are generally suitable for knee joint surgery. Furthermore, they include features that make them suitable for performing a minimally invasive knee surgery in which a smaller than normal incision is made and oriented to preserve the quadriceps mechanism and protect the suprapatellar pouch. The instruments permit switching from a minimally invasive technique to a standard open technique at any point in the procedure. An illustrative set of instruments for total knee arthroplasty and an associated minimally invasive technique are described.

Abstract: A medical implant system has parts for detachably establishing a spatial orientation between a body implant such as a bone plate and an aiming device. A contoured portion of a body implant is designed in such a manner that an adapter device can be detachably fastened to the body implant by means of a mechanic form-fit connection. Preferably the form-fitting elements are grooves and protrusions which tightly engage when clamped together. The adaptor device provides a basis for aiming or targeting a device such that the targeting device may be detachably positioned in a stable spatial position with respect to the body implant. Preferably, the adaptor device comprises a dowel pin, a handling device and a clamping element, which elements allow for a quick and easy assembling and disassembling of the adaptor device in a desired alignment.

Abstract: A tool centers an elongated drill bit within an elongated canal surrounded by bone tissue. A sleeve having an expandable diameter is internally threaded. The sleeve threadedly engages an externally-threaded cylindrical guide. A key includes a handle at one end of an elongated rod. The rod includes transversely-protruding buttons for engaging the guide so that rotation of the handle produces rotation of the guide to cause radial expansion of the sleeve. This results in symmetrical contacting of the interior surfaces of the bone tissue, thereby creating a vertical, centered channel with respect to the bone, that extends through the tool for guiding the drill bit.

Abstract: A cutting guide for removal of bone during arthroplasty. The cutting guide includes a housing having a three-dimensional guide path and an arm coupled to the housing and extending through the guide path. The arm includes a burr. As the arm is slid along the path, the burr simultaneously cuts in two planes on the bone.

Abstract: A navigated guide is provided for establishing datums used to position subsequent components during a surgical procedure.

Abstract: A method for treating arthritis of a joint includes identifying a bone lesion in a bone adjacent to the joint; and implanting in the bone a reinforcing member in or adjacent to the bone lesion. A kit for conducting the method includes: (a) at least one reinforcing member having a proximal face adapted to face the joint, a distal face adapted to face away from the joint, and a wedge-shaped edge adapted to pierce bone, wherein the at least one reinforcing member is planar and sterile; and (b) a container adapted to maintain the at least one reinforcing member sterile. Another kit includes: (a) a sterile fluid; (b) a syringe for injecting the fluid into a bone; (c) a curing agent adapted to cure the fluid to polymerize and/or cross-link; and (d) a container adapted to maintain the sterility of contents of the container.

Abstract: A patellar 3-D guidance tool includes a template. The template includes at least one contact surface for engaging a surface of the patella. The at least one contact surface substantially conforms with the surface associated with the patellar. At least one guide aperture directs movement of a surgical instrument, wherein the shape and/or position of the guide aperture is based, at least in part, on three or more anatomic reference points associated with the patellar.

Abstract: Access to the interior of the knee portion of the leg may be obtained through a cannula. The cannula may be inserted into a incision. The cannula may stretch the viscoelastic material of tissues forming the knee portion of the leg. Insertion of the cannula into the incision may expand the incision. The cannula may be expanded to facilitate movement of implants through the cannula. The implant may be formed of two or more portions, which may facilitate movement of the implant through the cannula. After the plurality of portions of the implant have been moved through the incision, portions of the implant may be interconnected to form a unitary implant.

Abstract: A method of preparing a joint for a prosthesis in a patient. The method includes obtaining scan data associated with the joint of the patient, preparing a three-dimensional image of the joint based on the scan data, preparing an interactive initial surgical plan based on the scan data, sending the surgical plan to a surgeon, receiving a finalized surgical plan from the surgeon, and preparing an image of a patient-specific alignment guide.

Abstract: The present invention concerns a surgical instrument. There is described a surgical instrument including a shaft having a handle towards a proximal end, a template towards a distal end, and resecting means for removing tissue. The template is shaped to complement the contours of a joint surface.

Abstract: Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Abstract: A surgical jig for determining an axis extending into the end of a bone (2). The jig comprises a platform (10) arranged to be supported upon a resected surface (4) at an end of a bone (2), first and second clamps (16) and an alignment guide (18). The first and second clamps (16) are coupled to the platform (10) and are arranged to engage first and second portions of a bone lip (6) extending around at least part of the resected surface (4) to secure the platform (10) to the resected surface (4). The alignment guide (18) defines an axis extending into the end of the bone (2), the alignment guide (18) being pivotally coupled to the platform (10). A method of determining an axis extending into the end of a bone (2) using the surgical jig is also disclosed.

Abstract: A method for performing an arthroplasty on at least one of a glenoid or a humerus of a glenohumeral joint. The method includes the following: forming an entry incision in soft tissue superior and lateral to the glenohumeral joint; forming a passage from the entry incision to the glenohumeral joint; inserting a cutting instrument through the passage and cutting a humeral head of the humerus to prepare the humerus to receive an implant including a stem; inserting the implant through the passage; and securing the implant relative to the humerus with the implant oriented such that the stem extends substantially parallel to a longitudinal axis of the humerus.

Abstract: Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Abstract: A patellar 3-D guidance tool includes a template. The template includes at least one contact surface for engaging a surface of the patella. The at least one contact surface substantially conforms with the surface associated with the patellar. At least one guide aperture directs movement of a surgical instrument, wherein the shape and/or position of the guide aperture is based, at least in part, on three or more anatomic reference points associated with the patellar.

Abstract: A system and method for performing an opening wedge osteotomy in a tibia, the system and method comprising (i) a positioning guide configured for aligning a portion of the positioning guide with a joint line of the tibia and for fixing the positioning guide to the tibia; (ii) a cutting guide configured to direct a cutting blade into the tibia so as to form a bone cut therein; (iii) a mechanical jack configured for placement into the bone cut in the tibia so as to distract the tibia at the bone cut; and (iv) a multi-part implant for supporting the open wedge osteotomy in the tibia, with a first component for disposition in a posterior portion of the open wedge osteotomy, a second component for disposition in an anterior portion of the open wedge osteotomy, and a connection device for selectively connecting the components to one another.

Abstract: Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Abstract: A method of preparing a joint for a prosthesis in a patient. The method includes obtaining scan data associated with the joint of the patient, preparing a three-dimensional image of the joint based on the scan data, preparing a pre-operative surgical plan based on the scan data, and preparing an image of a patient-specific alignment guide, and intra-operatively modifying the surgical plan.

Abstract: An articular cavity prosthesis comprises a block extending along a central axis and including a top section and a base section, the top section having an articular bearing surface extending transverse to the central axis and a supporting surface opposite the articular bearing surface configured to contact a surface of a bone on which the block is to be mounted, the base section having a fixing protrusion protruding outward from the supporting surface along the central axis and having a volume V, the block being formed of human tissue.

Abstract: A system, devices and methods for performing an osteotomy on a bone of a multi-axis joint are provided. A cutting guide system is provided for performing one or more cuts to the bone, using the articular surfaces of the articulating bones as a reference. If desired, a prosthesis can be used to emulate the osteotomy and substitute for a damaged articular surface of a bone of a multiaxis joint.

Abstract: A method for performing a high tibial, dome osteotomy to adjust the lateral and/or angular disposition of the tibial plateau relative to the lower portion of the tibia, the method comprising: forming an arcuate osteotomy cut in the tibia to subdivide it into upper and lower portions; manipulating the upper and lower portions to adjust their lateral and/or angular dispositions relative to one another; forming a pair of keyholes along the osteotomy cut; forming a keyhole slot to connect the two keyholes; forming a fixation hole in the tibia for each keyhole; providing an implant comprising a pair of keys connected by a bridge, each key comprising a bore for receiving a fixation screw therein; inserting the implant so that the keys are disposed in the keyholes, and so that the bores of the keys are aligned with the fixation holes; and inserting fixation screws through the bores of the keys and into the fixation holes of the keyholes so as to stabilize the upper and lower portions of the tibia.

Abstract: Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Abstract: A novel and improved elbow prosthesis and method of implanting same including a novel aggregate prosthesis having a retaining system in conjunction with a set plate.

Abstract: The present invention provides for an apparatus for cutting a tibia, a stylus, an apparatus for cutting a femur, an apparatus for aligning a femoral cutting guide, and an ankle clamp in support of a unicondylar knee surgery. The present invention further provides for a method of preparing a femoral condyle of a femur for the implantation of a unicondylar femoral knee implant. The apparatus for cutting a tibia includes a unicondylar tibial resection guide that is adjustably connectable to a unicondylar tibial alignment guide and configured to operate concurrently with the tibial alignment guide. The apparatus for cutting a femur includes a spacer block and a cutting guide configured to operate concurrently with the spacer block.

Abstract: A method prepares an ankle joint of a patient for replacement. The patient includes a tibia (20) having a medial portion (22), a talus (40), and an ankle (10) having a medial portion. The method employs a cutting alignment apparatus (50) including a first portion external to the patient and a second portion, and surgically prepares and exposes the medial portion of the ankle for replacement. The second portion of the cutting alignment apparatus is coupled to the tibia, and a cutting guide (90) is disposed with respect to the cutting alignment apparatus. The medial portion of the tibia is detached, a portion of the tibia proximate the talus is cut, and a portion of the talus proximate the tibia is cut. An ankle prosthesis (100) is installed to the ankle, and the medial portion of the tibia is reattached.

Abstract: A resection tether that includes an elongated member having a medial end and a lateral end. The lateral end is configured for attachment to a cutting device and the medial end is configured for attachment to a reference locator positioned in a bone. When attached at both ends, the resection tether controls the movement of the cutting device relative to the reference locator. Further disclosed is an apparatus that includes a tether having an elongated member that includes a medial end and a lateral end. The lateral end is configured for attachment to a bone cutting device and the medial end configured to attach a position on a bone. The apparatus includes a bone cutting device and a reference locator that has been positioned within a bone. Also disclosed are methods for using a tether to perform a bone resection and for creating an inlay bone resection.

Abstract: A kit for removing calcar bone from a resected face around a bone canal of a long bone prepared to receive an orthopaedic implant is provided. The kit includes a trial for insertion into the bone canal of the long bone and a fixture. The fixture has a connector for connecting the fixture to the trial and a guide for guiding the calcar reamer. The kit also includes a calcar reamer for removing calcar bone from the resected face around the bone canal of the long bone. The reamer includes a feature for cooperation with the guide of the fixture. The kit further includes an implant for insertion into the bone canal of the long bone.

Abstract: Apparatus for performing an open wedge, high tibial osteotomy, the apparatus comprising a wedge-shaped implant for disposition in a wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises at least one key for disposition in at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one keys comprises an interior bore for receiving a fixation screw, at least one fixation screw for disposition in the interior bore of the at least one key, and further wherein the apparatus is configured so that when the at least one fixation screw is received in the interior bore, the at least one fixation screw terminates within the bore.