An orthopaedic surgical instrument comprising a metallic customized patient-specific surgical instrument is disclosed. The metallic customized patient-specific surgical instrument includes a base plate sized to be positioned on a resected surface of a distal end of a patient's femur, an anterior resection guide body attached to, and extending from, the distal surface of the base plate to a free distal end, a posterior resection guide body attached to, and extending from, the distal surface to a free distal end, and a pair of chamfer resection guide bodies attached to, and extending from, the distal surface.

The present invention provides, in certain embodiments, a device for determining the tibial mechanical axis and the femoral mechanical axis. The present invention also provides a surgical orientation device, a reference device, and/or a module configured to track the mechanical axes during movement to facilitate limb alignment. The present invention further provides the surgical orientation device, the reference device, and/or the module configured to determine a gap measurement.

A bone resection guide for removal of a portion of a bone of a patient. The bone resection guide includes a resecting section and a drilling section. The resecting section has a bone-facing surface, an extension engaging surface, opposed to the bone-facing surface, and at least one resecting slot extending therethrough between the bone-facing surface and the extension engaging surface. The drilling section has a connecting surface, a tool engaging surface, opposed to the connecting surface, and a plurality of guiding bores extending therethrough from the tool engaging surface to the connecting surface. The drilling section is engageable with the resecting section with the connecting surface of the drilling section facing the extension engaging surface of the resecting section and the plurality of guiding bores being aligned with the at least one resecting slot when the drilling and resecting sections are engaged and secured together.

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 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.

An orthopaedic 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.

Devices and methods for performing a surgical step or surgical procedure with visual guidance using an optical head mounted display are disclosed.

A method of creating a patient specific instrument (PSI) for use in knee replacement surgery is described which includes using a digital bone model generated using at least two two-dimensional X-ray scans of a bone, each of the X-ray scans being taken from different angular positions. Locations for one or more anchor points on the PSI which are adapted to abut a surface of the bone are determined, the determined locations of the anchor points being disposed on the PSI at locations corresponding to areas of expected high accuracy on the digital bone model generated by the X-ray scans. The areas of expected high accuracy include at least a peripheral bone contour in at least one of the angular position of the X-ray scans. A method of positioning a surgical guide using such a PSI is also disclosed.

Methods and apparatuses including apparatuses that can be used for guiding resection of a tibia during a knee replacement surgery procedures are disclosed. According to one example, an apparatus for guiding a tibial bone cut during knee replacement surgery is disclosed. The apparatus can comprise a first portion and a second portion. The first portion can be configured to position the apparatus relative to one or more of a medial condyle of a femur, a lateral condyle of the femur, a medial condyle of a femoral component and a lateral condyle of the femoral component. The second portion can be connected to the first portion and can define one or more slots. The slots can be configured for at least one of a first proximal cut and a first sagittal cut to the tibia.

A system determining a location for a surgical procedure, the system including a jig having a frame, a first marker fixed to the frame, wherein the first marker includes a scanable label, and a second marker moveably connected to the frame, such that the second marker can move positions independent of the frame, and wherein the second marker includes a scanable label. The system also includes a mixed reality headset configured to scan the scanable label of the first marker and the scanable label of the second marker, to provide location data to the mixed reality headset.