How often does a femur get broken during a knee replacement?

A femur fracture during knee replacement surgery is relatively rare, occurring in less than 1% of cases. Most fractures, if they do happen, are typically associated with pre-existing bone conditions or complications during the procedure. Surgeons take precautions to minimize this risk, and modern surgical techniques have further reduced the likelihood of such occurrences. Overall, while the risk exists, it is considered uncommon in routine knee replacement surgeries.