Self-centering of the Cook Celect inferior vena cava filter

A patient who underwent placement of an inferior vena cava (IVC) filter before total knee arthroplasty with a history of venous thromboembolism following knee replacement 10 years prior. Difficulty releasing the filter during delivery resulted in approximately 17° of medial tilt of the filter apex. Follow-up computed tomography after arthroplasty 4 months after placement demonstrated that the filter self-centered in the IVC with subsequent straightforward retrieval.