title: Sonographic measurement of iliotibial band thickness: an observational study in healthy adult volunteers.
abstract: OBJECTIVE
  Iliotibial tract friction syndrome (ITBFS) might be caused by repetitive friction and abrasion of the iliotibial (ITB) tract across the lateral femoral epicondyle. Thickening in the ITB adjacent to the lateral femoral epicondyle has been reported. The values of ITB thickness at the lateral femoral epicondyle in healthy adult volunteers were determined, and the association between the thickness of the ITB and the subjects' age, weight, height, dominant limb and the volume of training or sporting activity was assessed.
  
  
  METHODS
  An Ultrasound Scan (high resolution 3-2 MHz transducer Voluson-i G E Medical Systems, UK) was used to measure the thickness of the ITB in 38 healthy volunteers (30 men and 8 women, mean age 22.5 ± 1.5 years, range 18-25 years). One measurement from each of the subjects' knees at the level of lateral femoral epicondyle was taken. Reliability was established by measuring 11 of the subjects on three separate occasions at least I week apart.
  
  
  RESULTS
  The thickness of the ITB on the right and left knees was 1.1 ± 0.2 mm. There was no evidence of a significant association between the thickness of the ITB and the subjects' age, weight, height, dominant limb and the volume of training or sporting activity.
  
  
  CONCLUSIONS
  There is no evidence of significant correlation between the thickness of the ITB and subjects' age, weight, height, dominant limb and volume of training or sporting activity.
authors.affiliation: Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Mile End Hospital, 275 Bancroft Road, London, E1 4DG, UK.
authors.forename: Ibrahim A
authors.initials: IA
authors.lastname: Gyaran
authors.forename: Filippo
authors.initials: F
authors.lastname: Spiezia
authors.forename: Zoe
authors.initials: Z
authors.lastname: Hudson
authors.forename: Nicola
authors.initials: N
authors.lastname: Maffulli
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D015331:Cohort Studies; D005206:Fascia Lata / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D058745:Iliotibial Band Syndrome / Q000000981:diagnostic imaging; D007719:Knee Joint / Q000000981:diagnostic imaging* / Q000502:physiology; D008297:Male; D012016:Reference Values; D013710:Tendons / Q000000981:diagnostic imaging*; D018608:Ultrasonography, Doppler / Q000379:methods*; D055815:Young Adult