The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant.

An orthopaedic prosthesis system and associated instrumentation is disclosed. The system includes femoral and tibial components configured to be used in a number of different implanted configurations. The instrumentation is configured to facilitate preparation of the bones and selection of the implant configuration. A method of using the system is also disclosed.

A system of prosthetic implants for a total knee replacement procedure is provided. The system includes a tibial component of a knee joint implant, a tibial insert configured to be positioned against the superior side of the platform of the tibial component, a first femoral component of a knee joint implant, and a second femoral component of a knee joint implant.

A system for performing at least a portion of a robotic knee arthroplasty can include a robotic surgical device including an end effector configured to receive a trial component removably connected thereto. The trial component can be engageable with a resected bone. The system can include a processor communicatively coupled to the surgical robot. The processor can be configured to determine a characteristic of the resected bone. The processor can be configured to plan a placement location of the trial component on the resected bone based on the determined characteristic of the resected bone. The processor can be configured to move the end effector to position the trial component on the resected bone based on the determined characteristic of the resected bone and based on the plan.

The present application relates to an assembly for a joint (1, 2, 3, 4), the joint comprising a joint implant (5, 6) between a proximal segment of a limb that is proximal to the joint and a distal segment of the limb that is distal to the joint and in which the joint is configured to allow rotation of the proximal and distal segments with respect to one another about an axis that intersects a first plane, and to inhibit rotation in the second and third plane, both perpendicular to the first plane, the assembly being for subjecting the joint at predetermined angles of the joint rotation in the second and third plane to a defined bending moment to induce a load to the implant that causes a movement of the implant in relation to the bone of the proximal or distal segments.

A femoral prosthesis includes a femur body and a cam portion. A joint surface of the femur body has a first joint surface portion for abutting a tibial prosthesis within a first knee flexion angle range from a first knee flexion angle to a second knee flexion angle, and a second joint surface portion for abutting the tibial prosthesis within a second knee flexion angle range from the second knee flexion angle to a third knee flexion angle. At the second knee flexion angle, the first joint surface portion has a first radius of curvature, and the second joint surface portion has a second radius of curvature. A center of circle of an anterior joint surface of the cam portion is located in a first quadrant of a center of circle with the second radius of curvature in a sagittal section when the femoral prosthesis is in an extended state.

In a tibial component, an engagement mechanism configured to engage a tibial block and a tibial tray includes a recessed portion that is disposed in a lower surface, is non-penetrating, and includes an overhanging portion protruding inward more on an opening side than on a bottom portion side in at least a part of an inner wall; and a projecting portion that protrudes from the tibial block to the lower surface side, and includes a protruding part configured to engage with the overhanging portion.

A multifunctional spacer for knee surgery is described comprising a main body configured for use with a single femoral condyle and having an anterior portion of a first height and a posterior portion of a second height, wherein the second height is greater than, equal to or less than the first height. In addition, the anterior portion and/or the posterior portion is provided with an attachment mechanism for selective attachment of a height adjuster.

A tibial baseplate system is described. While the system can include any suitable component, in some instances, it includes tibial baseplate having a first and second surface, the second surface being substantially opposite to the first surface, which is configured to be seated on a resected surface at a proximal end of a tibia. In some cases, the baseplate also includes a first spacer coupling that is configured to couple a first spacer to at least one of a lateral side and a medial side of the baseplate such that the spacer is disposed between, and is configured to maintain a set minimal distance between, the proximal end of the tibia and a distal end of a femur when the tibial baseplate is seated on the resected surface at the proximal end of the tibia and the spacer is coupled to the tibial baseplate. Other implementations are discussed.

A measurement system comprising a measurement device and a computer. The measurement device is configured to measure a force, pressure, or load applied by the musculoskeletal system. The measurement device comprises an enclosure and a structure configured to fit within an opening in the enclosure. The enclosure is hermetically sealed housing electronic circuitry and at least one sensor. The structure is configured to couple to the musculoskeletal system. At least three sensors underlie and couple to the structure to measure a force, pressure, or load applied to a surface of the structure. The structure includes at least three anti-cantilevering structures. At least one of the three anti-cantilevering structures is configured to couple to the enclosure to limit canting of the structure when the musculoskeletal system couples to the surface of the structure outside a predetermined area.