Iliotibial band thickness: Sonographic measurements in asymptomatic volunteers

Abstract

The mean sonographic values of normal ITB thickness established using sonography may be helpful in diagnosing ITB pathology. There is no significant correlation between ITB thickness and subject weight or height, but there is a negative correlation between ITB thickness and subject age. Joint fluid in the lateral recess is present in most asymptomatic individuals, but bursae are rare.

US of the Knee: Scanning Techniques, Pitfalls, and Pathologic Conditions

“…US evidence of iliotibial band syndrome includes hypoechoic edema of the iliotibial band, fluid superficial or deep to the iliotibial band, and thickening of the band itself by greater than 2-3 mm (22) (Fig 25). Sometimes cortical irregularity of the adjacent femoral condyle is also noted.…”

Viscoelastic behavior of human fasciae under extension in manual therapy

“…00-1997.00 (experimental) areas of cross section (width multiplied by thickness) often varies with the subject's age (Goh et al, 2003). The experimental stress values given above have been evaluated by dividing the force values (246-623 N) by the estimated area of cross section of 0.312 cm 2 (Goh et al, 2003). We do not include the predicted results for superficial nasal fascia in this table since it is not dense fascia.…”

“…Note that 3% elongation occurs at 4 mm displacement when the microfailure begins, and 4.13% is interpolated when microfailure ends at 5.5 mm displacement (Threlkeld, 1992 (Threlkeld, 1992) 788. 00-1997.00 (experimental) areas of cross section (width multiplied by thickness) often varies with the subject's age (Goh et al, 2003). The experimental stress values given above have been evaluated by dividing the force values (246-623 N) by the estimated area of cross section of 0.312 cm 2 (Goh et al, 2003).…”

Sonographic Evaluation of the Iliotibial Band at the Lateral Femoral Epicondyle

“…Despite the high prevalence of ITBS, its precise pathoetiology remains a topic of debate. Traditionally, it was believed that the iliotibial band (ITB) translated over the LFE during the initial 25° to 30° of knee flexion, potentially irritating the ITB or its associated bursa during repetitive activities such as running 2 – 6 , 8 – 15 . This injury model adequately explained the predilection for ITBS among runners, the production of maximal symptoms between 25° and 35° of knee flexion, the physical examination finding of tenderness at the posterior ITB, and a positive Noble compression test result 1 – 4 .…”

“…Developing a more complete and accurate understanding of ITB function at the LFE is a necessary prerequisite to optimize prevention and treatment strategies for ITBS. Although sonography has been used to characterize static structural changes in patients presenting with ITBS as well as dimension changes during ITB stretching, no prior research using sonography has evaluated the motion of the ITB in symptomatic or asymptomatic populations 8 , 9 , 16 – 23 . The purpose of this study was to use sonography to determine the position of the ITB relative to the LFE as a function of knee flexion in both non–weight‐bearing and weight‐bearing positions in asymptomatic recreational runners.…”