Aims and objectives
In daily clinical practice , US allows a quick comparison with the normal contralateral side,
used often as a reference that helps in the identification of subtle abnormalities .
If the contralateral side is assumed as an internal control, a relatively low intrasubject side-to-side variability is supposed to be present. However,
we are not aware of any published data regarding side-to-side comparison of small (below 2 mm) clinically relevant musculoskeletal structures of the wrist and hand....
Methods and materials
Study population Institutional review board approval was obtained.
All participants provided written informed consent. From August 2017 to September 2017,
with a consecutive selection,
a total of 13 (7 men and 6 women; median age 32,8,
range 26-50 years) healthy volunteers were recruited.
N=12 of the 13 subjects (92%) were right hand-dominant,
just one was left hand-dominant.
Inclusion criteria were age>18 and ability to give an informed consent. Exclusion criteria were known symptomatic...
Results None of the volunteers had abnormal ultrasonographic findings of the very small clinically relevant anatomical structures of the wrist and hand.
all 13 volunteers were included in the analysis.
Mean values and Standard Deviation (SD) for measurement data are reported in Table 1 Fig. 2 . Table 1: Very small clinically relevant musculoskeletal structures of the wrist and hand: Mean values,
Standard Deviation (SD) for all structures.
The antero-posterior thickness was...
Results of the study show that measurement of very small (below 2mm) clinically relevant musculoskeletal structures of the wrist and hand allow side-to-side comparisons.
In Patients affected by musculoskeletal pathological conditions (post-trauma,
overuse or rheumatological diseases),
the healthy contralateral side can be assumed as an internal control during ultrasound evaluation.
in our study a relatively low intrasubject side-to-side variability was observed.
 Bianchi S,
Ultrasound of the musculoskeletal system.
Berlin: Springer; 2007  Lee SA,
Current status of ultrasonography of the finger.
Ultrasonography 2016;35(2):110-123  Klauser AS,
Allen GM et al.
Clinical indications for musculoskeletal ultrasound: A Delphi-based consensus paper of the European society of musculoskeletal radiology.
Eur Radiol 2012;22(5):1140–1148  McNally EG.
Ultrasound of the small joints of...