Requirement: The patient is without deep vein thrombosis or pulmonary embolus.
Criteria for prophylactic placement - All of the following:
(1) The patient cannot receive anticoagulation.
(2) The patient is > 45 years of age and/or has poor cardiopulmonary reserve.
(3) One of more of the following injury patterns:
(3a) closed head injury with Glasgow Coma Score < 8
(3b) spinal cord injury with paraplegia or quadriplegia
(3c) complex pelvic fractures with associated long-bone fractures
(3d) multiple long-bone fractures
Patients who may benefit most from filter placement:
(1) age >= 60
(2) spinal cord injury
(3) poor cardiopulmonary reserve
(4) very high risk of venous thromboembolism
