Anatomy and clinical application of suprascapular nerve to accessory nerve transfer

Table 1 The measurements of a-b and a-c

	(mean ± SD, cm)	P (95%CI)
a-b	5.64 ± 0.78	< 0.01
a-c	4.30 ± 0.79

SD: Standard deviation; CI: Confidence interval.

Table 2 Results of Constant’s Shoulder Scale

	Subjective evaluation		Objective evaluation
	Left	Right	Left	Right
Before surgery	27	27	63	63
Three months after surgery	22	21	25	23
Nine months after surgery	26	23	48	46

Table 3 Amplitude of electromyographic and the ratio R of the trapezius

	Left side			Right side
	Descending portion	Horizontal portion	Ascending portion	Descending portion	Horizontal portion	Ascending portion
Before surgery	288.25	260.67	187.33	278.00	186.00	182.67
Three months after surgery	130.00	135.25	132.50	125.25	141.25	124.50
R3m	0.55	0.48	0.29	0.55	0.24	0.32
Nine months after surgery	182.35	138.16	129.36	139.15	179.38	140.57
R9m	0.37	0.47	0.31	0.50	0.04	0.23

Table 4 Amplitude of electromyographic and the ratio R of the supraspinatus and infraspinatus

	Left side		Right side
	Supraspinatus	Infraspinatus	Supraspinatus	Infraspinatus
Before surgery	423.75	267.33	183.00	181.33
Three months after surgery	189.50	245.75	181.25	170.00
R3m	0.55	0.08	0.01	0.06
Nine months after surgery	170.28	253.46	172.33	175.30
R9m	0.60	0.05	0.06	0.03