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

Table 2

Comparison of the shoulder scores (mean ± SD).

Group	N	Before treatment	After treatment
PN	34	13.61 ± 3.77	31.22 ± 3.34
SN	34	14.34 ± 3.89	25.43 ± 3.83

Note: “★”: compared with the small needle-knife group, . “▲”: compared with the situation before treatment, .