The Sonography and Physical Findings on Shoulder after Selective Neck Dissection in Patients with Head and Neck Cancer: A Pilot Study

Table 2

Comparison of pain level and range of motion of shoulder joint between surgical and nonsurgical sides.

	Surgical side (n=20)	Nonsurgical side (n=14)	P
VAS, (median, IQR)	4(1-5)	0(0-0)	0.001
Range of Motion, degree (median, IQR)
Flexion	147.5(135-158.75)	180(180-180)	0.001
Extension	55 (50-60)	60(50-60)	0.112
Abduction	140 (71.25-160)	180(180-180)	0.001
Adduction	55 (45-60)	60(45-60)	0.569
Internal rotation	70 (60-70)	70(60-71.25)	0.931
External rotation	87.5(71.25-90)	90(77.5-90)	0.396

Mann-Whitney U test was used for the between-group comparison of range of motion of shoulder joint.
VAS = Visual Analogue Scale.
p<0.05.