A system for converting a first joint prosthesis to a second joint prosthesis in-situ includes a plurality of inserts having a bone interface side and a component facing side and a plurality of articulating components having a cavity configured to receive at least one of the plurality of inserts. The plurality of inserts may be unicompartmental, bicompartmental, or tricompartmental. The inserts may be made of metal and may have a bone contacting surface made of a porous metal. The plurality of articulating components may be unicompartmental, bicompartmental, or tricompartmental. The articulating components may be sized and shaped to cover one or more of the plurality of bone interface components and span a distance therebetween. The articulating components may be made of a polymer.

A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.

A method and system for guiding knee replacement procedures, the method comprising receiving first data values from one or more sensors and one or more functional measurement devices, performing a reference measurement based on the first data values from the one or more sensors and the one or more functional measurement devices prior to a femoral cut, generating joint replacement recommendations based on the reference measurement, receiving second data values from the one or more sensors and the one or more functional measurement devices, performing a control measurement based on the second data values from the one or more sensors and the one or more functional measurement devices after a femoral cut based on the joint replacement recommendations, receiving third data values from the one or more functional measurement devices, and performing a pressure test that measures loading, balance, and kinematic behavior at medial and lateral condyles based on the third data values.

Medical devices are provided, comprising a medical device and a sensor.

The method of treating osteoarthritis of the knee (OAK) includes resection of the patella, patellar tendon, proximal tibia, and distal femur, and bone grafting after resection. The bone grafting includes using a single complete osteo-articular allograft configured to replace the knee joint, distal femur, and proximal tibia. Metallic plates are used for internal fixation of the allograft. The procedure can provide patients with full knee flexion, and thereby enable kneeling, e.g., as required in the Islamic prayer.

A knee prosthesis and a method of selecting for a particular patient a knee prosthesis from an inventory of available knee prosthesis or from 3D knee prosthesis models is provided. The method includes the steps of (a) parameterizing a knee prosthesis according to well-defined and independent knee joint compartments, (b) generating a large number knee shapes in the form of 3D knee prosthesis models which reproduce the 3D shape asymmetries of each individual knee, thereby enabling the replication of the knee motion of essentially any patient by generating shapes which vary the shape parameters (surface and dimension) of at least one of those compartments and storing these 3D knee prosthesis models in a database, and (c) studying the patient’s pathology and developing pre -pathological knee prosthesis criteria matching the patient’s needs. Using a planning algorithm, a suitable knee prosthesis may be selected among an inventory of existing knee prostheses or the large number of knee shapes, the prosthesis or shape selected best meeting the patient’s needs as determined by the study.

A system 100 or designing a surgical kit 700 for articulating surface repair in an anatomical joint of a patient is provided, which comprises at least one processor 120 configured to: determine damage to the anatomical joint; select, from a predefined set of implants having varying dimensions, the implant 300 that is the best fit for repairing the determined damage; select, from a predefined set of insert tools, the insert tool 720 corresponding to the selected implant 300; and design a contact surface 540 of a guide tool 500 to have a shape and contour that is designed to correspond to and to fit the contour of a predetermined area. This enables the use of standardized implants 300 that can be manufactured batch-wise, while still using an individualized guide tool 500 to ensure correct positioning of the implant 300. This helps ensuring that the implant will be positioned in the exact location of the determined damage.

Medical devices are provided, comprising a medical device and a sensor.

Disclosed herein are methods and devices for repairing articular surfaces. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function.

An orthopedic guide for preparing a particular patient's bone to receive a prosthesis using a milling tool with a rotating burr comprises a platform having a top surface and a bottom surface adapted to face the patient's bone. The platform defines an elongate milling track that extends through the platform from the top surface to the bottom surface of the platform, the milling track being sized and shaped so as to be adapted to guide the milling tool across the patient's bone with the burr of the milling tool rotating beneath the bottom surface of the platform to be adapted to remove a first bone portion from the patient's bone. A plurality of legs are coupled to the platform and each comprise a referencing end that is contour-matching fabricated as a function of the patient's bone data to be adapted to abut the patient's bone, the referencing ends of the plurality of legs adapted to cooperate to locate the orthopedic guide at a single predetermined location of the patient's bone.