TY - JOUR
T1 - Ultrasound Assessment of the Rotator Cuff Cable
T2 - Comparison Between Young and Elderly Asymptomatic Volunteers and Interobserver Reproducibility
AU - Sconfienza, Luca Maria
AU - Orlandi, Davide
AU - Fabbro, Emanuele
AU - Ferrero, Giulio
AU - Martini, Chiara
AU - Savarino, Edoardo
AU - Silvestri, Enzo
PY - 2012/1
Y1 - 2012/1
N2 - Our aim was to characterize rotator cable ultrasound appearance in shoulders of different-aged asymptomatic volunteers, also estimating interobserver reproducibility. We studied 83 shoulders in 42 young volunteers (mean age 26 ± 7.0 years, range 21-35 years) and 66 shoulders in 36 elderly volunteers (65-81 years, 73 ± 4.9 years), noting rotator cable visibility and its minimum thickness and width. Interobserver reproducibility was tested in elderly volunteers by two blinded observers. χ 2, U Mann-Whitney, t-test, Bland-Altman, and κ statistics were used. Rotator cable was less frequently detected in younger than elderly volunteers (25/83 vs. 36/66 shoulders; p = 0.002). Young subjects had thicker (1.5 ± 0.2 mm, range 1.3-1.8 mm vs. 1.1 ± 0.1 mm, 0.9-1.3 mm; p <0.001) and wider rotator cable (5.8 ± 0.7 mm, 4.5-7.1 mm vs. 4.0 ± 1.2 mm, 2.5-7.1 mm; p <0.001) than elderly volunteers. Thickness and width reproducibility index were 89% and 94%, respectively; κ = 0.87. Ultrasound demonstrated different rotator cable consistency in younger and elderly asymptomatic patients, with high interobserver reproducibility.
AB - Our aim was to characterize rotator cable ultrasound appearance in shoulders of different-aged asymptomatic volunteers, also estimating interobserver reproducibility. We studied 83 shoulders in 42 young volunteers (mean age 26 ± 7.0 years, range 21-35 years) and 66 shoulders in 36 elderly volunteers (65-81 years, 73 ± 4.9 years), noting rotator cable visibility and its minimum thickness and width. Interobserver reproducibility was tested in elderly volunteers by two blinded observers. χ 2, U Mann-Whitney, t-test, Bland-Altman, and κ statistics were used. Rotator cable was less frequently detected in younger than elderly volunteers (25/83 vs. 36/66 shoulders; p = 0.002). Young subjects had thicker (1.5 ± 0.2 mm, range 1.3-1.8 mm vs. 1.1 ± 0.1 mm, 0.9-1.3 mm; p <0.001) and wider rotator cable (5.8 ± 0.7 mm, 4.5-7.1 mm vs. 4.0 ± 1.2 mm, 2.5-7.1 mm; p <0.001) than elderly volunteers. Thickness and width reproducibility index were 89% and 94%, respectively; κ = 0.87. Ultrasound demonstrated different rotator cable consistency in younger and elderly asymptomatic patients, with high interobserver reproducibility.
KW - Interobserver reproducibility
KW - Rotator cuff cable
KW - Shoulder
KW - Ultrasound
UR - http://www.scopus.com/inward/record.url?scp=83055180494&partnerID=8YFLogxK
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U2 - 10.1016/j.ultrasmedbio.2011.10.010
DO - 10.1016/j.ultrasmedbio.2011.10.010
M3 - Article
C2 - 22104526
AN - SCOPUS:83055180494
VL - 38
SP - 35
EP - 41
JO - Ultrasound in Medicine and Biology
JF - Ultrasound in Medicine and Biology
SN - 0301-5629
IS - 1
ER -