Abstract: A device for positioning a fiducial marker (160) on an anatomical structure includes a fiducial base (40) and a fixation member (60). The fiducial base (40) comprises a turn (44) and an extension (42) configured to position the fiducial marker (160) within the field of view of a tracking sensor (210). The fiducial marker (160) is positioned away from the anatomical structure. The fixation member (60) is configured to have a low profile and further configured to fix the fiducial base (40) to the anatomical structure. The fixation member (60) is fixed to the anatomical structure through a primary surgical incision and positioned on the anatomical structure such that the fixation member (60) is isolated from the surgical approach. The fiducial base (40) extends from the fixation member through the primary surgical incision.

Abstract: Devices and processes for use in computer aided or computer navigated surgery include one or more fault interfaces interposed between an indicium and an item to be used during surgery such as a body part, tool, implant, trial or other structure or component. After the indicia have been registered into the system and surgery begun, it is sometimes the case that indicia can be inadvertently moved or dislodged in position and/or orientation relative to the body part. Fault interfaces according to various embodiments are designed to fail first, so that the indicia can be repositioned relative to the item without the need to reregister the indicia into the system relative to the item. The fault interfaces preferably include structure that allows the indicium to be repositioned relative to the item so that it does not need to be reregistered into the system. Frame attachments which can by easily manufactured at relatively low cost, are disposable, and which are manufactured for single use are disclosed.

Abstract: Devices and processes for use in computer aided or computer navigated surgery include one or more fault interfaces interposed between an indicium and an item to be used during surgery such as a body part, tool, implant, trial or other structure or component. After the indicia have been registered into the system and surgery begun, it is sometimes the case that indicia can be inadvertently moved or dislodged in position and/or orientation relative to the body part. Fault interfaces according to various embodiments are designed to fail first, so that the indicia can be repositioned relative to the item without the need to reregister the indicia into the system relative to the item. The fault interfaces preferably include structure that allows the indicium to be repositioned relative to the item so that it does not need to be reregistered into the system. Frame attachments which can by easily manufactured at relatively low cost, are disposable, and which are manufactured for single use are disclosed.

Abstract: Devices and processes for use in computer aided or computer navigated surgery include one or more locator and locking mechanisms and mating parts, or, alternatively, one or more adjustable locking structures interposed between an indicium and an item to be used during surgery such as a body part, tool, implant, trial or other structure or component. After the indicia have been registered into the system and surgery begun, it is sometimes desirable to remove and reattach the indicia for better access to the surgical sight, to avoid contamination of the indicia, or to accommodate other surgical needs. Locator and locking mechanisms and mating parts according to various embodiments are designed to be easily removable and accurately reattached so that the indicia can be repositioned relative to the item without the need to reregister the indicia into the system relative to the item.

Abstract: Adjustable and modular systems, devices and methods for accurately cutting or resecting bones during surgery, particularly in preparation for installing joint implants during arthroplasties, including, but not limited to, preparation of femur or tibia during knee arthroplasties, such as total knee arthroplasty. The embodiments of the present invention provide solutions for adjusting a position of the cutting guides, or structures for guiding or directing the implements for resecting a patient's bone tissue, such as saws. The systems and devices comprise a base, an attachment member for securing the base to a bone, and adjustment members extending from the base to contact surfaces of the bone and allowing adjustment of the position of the base.

Abstract: Devices and processes for use in computer aided or computer navigated surgery include one or more fault interfaces interposed between an indicium and an item to be used during surgery such as a body part, tool, implant, trial or other structure or component. After the indicia have been registered into the system and surgery begun, it is sometimes the case that indicia can be inadvertently moved or dislodged in position and/or orientation relative to the body part. Fault interfaces according to various embodiments are designed to fail first, so that the indicia can be repositioned relative to the item without the need to reregister the indicia into the system relative to the item. The fault interfaces preferably include structure that allows the indicium to be repositioned relative to the item so that it does not need to be reregistered into the system. Frame attachments which can by easily manufactured at relatively low cost, are disposable, and which are manufactured for single use are disclosed.

Abstract: Devices and processes for use in computer aided or computer navigated surgery include one or more fault interfaces interposed between an indicium and an item to be used during surgery such as a body part, tool, implant, trial or other structure or component. After the indicia have been registered into the system and surgery begun, it is sometimes the case that indicia can be inadvertently moved or dislodged in position and/or orientation relative to the body part. Fault interfaces according to various embodiments are designed to fail first, so that the indicia can be repositioned relative to the item without the need to reregister the indicia into the system relative to the item. The fault interfaces preferably include structure that allows the indicium to be repositioned relative to the item so that it does not need to be reregistered into the system.