Outcomes of Visualized Puncture Needle and Small Needle-Knife Therapy in Primary Frozen Shoulder Based on Multimodal Ultrasound Imaging

Table 3

Comparison of shoulder mobility (°, mean ± SD).

	Group	N	Before treatment	1 week later	2 weeks later	3 weeks later
Abduction	PN	34	84.51 ± 12.79	112.14 ± 9.68	118.11 ± 10.81	135.13 ± 16.56
	SN	34	86.17 ± 12.54	93.34 ± 10.44	98.57 ± 11.04	109.34 ± 17.45
Forward flexion	PN	34	98.65 ± 16.76	120.51 ± 14.63	134.47 ± 15.77	144.32 ± 18.73
	SN	34	99.12 ± 16.67	108.23 ± 14.55	117.62 ± 13.97	130.32 ± 16.47
Backward extension	PN	34	36.37 ± 8.59	38.57 ± 7.87	43.44 ± 8.09	48.87 ± 8.31
	SN	34	38.85 ± 9.05	39.57 ± 8.01	40.36 ± 8.55	45.15 ± 10.02

Note: “★”: compared with the situation before treatment, . “▲”: compared with the control group, .