Caprini Score for Venous Thromboembolism (2005)

Minor surgery does not refer to type of surgery but rather length of anesthesia <45 minutes.

Major surgery refers to procedures with general or regional anesthesia time >45 minutes are included. These include open, laparoscopic, or arthroscopic procedures. Re-operations during the same hospitalization count for 2 points each if the anesthesia time exceeds 45 minutes.

Major lower extremity arthroplasties are high-risk procedures. However if additional risk factors are present that further increases the risk. It has been shown that in scores ≥10 the VTE risk is significantly greater. If the procedure is being done as a result of a hip fracture, preoperative screening may be beneficial.

Bed rest is defined as not being able to walk 30 feet (10 meters) at one time. Bathroom privileges or walking in the room are not considered ambulation. Walking this distance reduces the VTE risk by 50%. Click here for VIDEO. PE mortality increased for those immobile for >4 days.