title: Fracture and migration of Celect inferior vena cava filters: a retrospective review of 741 consecutive implantations.
abstract: OBJECTIVE
  To determine the incidence of fracture and migration of the Celect inferior vena cava (IVC) filter at a single tertiary-care center.
  
  
  METHODS
  Images obtained after placement of Celect IVC filters between August 2007 and January 2013 were retrospectively reviewed for evidence of device fracture and migration. The probability of filter fracture at 6 and 12 months after filter placement was estimated, and a 95% upper confidence bound was constructed.
  
  
  RESULTS
  A total of 741 consecutive Celect filters were placed, and the following studies were subsequently evaluated: 301 abdominal radiographs, 282 abdominal computed tomography (CT) scans, 154 cavagrams, 19 lumbar spine radiographs, 462 chest radiographs, 108 chest CT scans, and 31 pelvic radiographs. The mean imaging follow-up interval was 5.78 months ± 8.80 (range, 0.01-56.03 mo). There was no filter fracture or en-bloc migration outside the IVC. Upper 95% confidence bounds for the probability of fracture were 1.8% at 6 months and 4.3% at 12 months. Intracaval filter migration of more than 2 cm (mean, 2.43 ± 0.12 cm; range, -2.54 to 2.99 cm) was seen in 3.9% of patients (21 of 534; 12 cranial and nine caudal).
  
  
  CONCLUSIONS
  No fracture of a Celect filter was observed in this large cohort over a relatively short follow-up interval. The results also suggest that the Celect filter has an adequate securing mechanism to prevent distant en-bloc or significant intracaval migration.
authors.affiliation: Section of Interventional Radiology, Imaging Institute, Cleveland Clinic, 9500 Euclid Ave., Cleveland, OH 44195. Electronic address: wangw2@ccf.org.
authors.forename: Weiping
authors.initials: W
authors.lastname: Wang
authors.forename: Dayong
authors.initials: D
authors.lastname: Zhou
authors.forename: Nancy
authors.initials: N
authors.lastname: Obuchowski
authors.forename: James
authors.initials: J
authors.lastname: Spain
authors.forename: Tianzhi
authors.initials: T
authors.lastname: An
authors.forename: Eunice
authors.initials: E
authors.lastname: Moon
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009820:Ohio / Q000453:epidemiology; D010690:Phlebography / Q000379:methods; D011474:Prosthesis Design; D011475:Prosthesis Failure; D019919:Prosthesis Implantation / Q000009:adverse effects* / Q000295:instrumentation*; D012189:Retrospective Studies; D062606:Tertiary Care Centers; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016306:Vena Cava Filters; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging; D055815:Young Adult
keywords: IVC; inferior vena cava