Shear Wave Elastography (SWE) Evaluation of Asymptomatic Flexor Pollicis Longus Tendon Condition After Volar Plate Fixation for Distal Radius Fracture

Figures & data

Figure 1 FPL plate distance. It is defined as the distance between the distal edge of the plate and the FPL tendon.

Figure 2 FPL tissue rigidity was assessed by SWE, the mean Young’s modulus was 43.7 kPa, and the color of ROI was blue, which means the rigidity of FPL was soft.

Figure 3 FPL tissue rigidity was assessed by SWE, the mean Young’s modulus was 70.9 kPa, and the color of ROI was yellow, which means the rigidity of FPL was intermediate.

Figure 4 FPL tissue rigidity was assessed by SWE, the mean Young’s modulus was 287.9 kPa, and the color of ROI was red, which means the rigidity of FPL was hard.

Table 1 Correlation Between SWE Involved Wrist and Parameters

Parameter	Value	Spearman (r, P)	Multiple Analysis (P)
Age	61.6(47–73)	−0.025, 0.883	0.904
Palmar tilt	8.5 (13.0–0.0)	0.240, 0.159	0.131
Radial inclination	20.9 (18.5–24.3)	0.823, <0.001	0.029
R adial height	10.9 (8.9–13.2)	0.081, 0.638	0.271
FPL distance	0.8 (0.2–1.5)	0.914, <0.001	<0.001
Soong grade		−0.394, 0.017	0.897