US Patent 11534185 Registration of intramedulary canal during revision total knee arthroplasty

Methods and systems for identifying and determining the size and orientation of a reamed portion of a patient's bone are disclosed. A tracking array and/or point probe may be inserted into an adapter device. The adapter device comprising a plurality of openings, having various connection means therein, such that when the tracking array is inserted into the adapter, a secure and robust connection is created. A reamer, stem, or similar tool may then be inserted into the opposing side of the adapter, during which, a secure and robust connection is created between the adapter and the tool. Thus, through the use of Computer Assisted Surgery Systems, a more accurate representation of the patient's anatomy can be obtained.