To compare the efficacy and safety of musculoskeletal ultrasound-guided and blind injection in the treatment of subacromial and subdeltoid bursitis.

The clinical data of 136 patients with subacromial and subdeltoid bursitis admitted to our hospital from January 2023 to August 2025 were retrospectively selected. According to different treatment methods, they were divided into the study group (n=75) and the control group (n=61). Patients in the control group were treated with local block injection, while patients in the study group were treated with subacromial-deltoid subcapsular injection therapy guided by musculoskeletal ultrasound. The clinical efficacy, the incidence of adverse reactions and the rate of secondary injection of the two groups of patients were compared after 2 weeks of treatment. The visual analogue scale (VAS) score was used to evaluate the degree of pain before treatment, 1 day after treatment, 1 week after treatment and 4 weeks after treatment. Before treatment and 2 weeks after treatment, upper limb function was evaluated using the upper limb simplified Fugl-Meyer assessment scale, and shoulder joint function was evaluated using the UCLA shoulder rating scale (UCLA).

The total clinical effective rate of the study group was significantly higher than that of the control group (P<0.05). One day after treatment and one week after treatment, the VAS score of the study group was lower than that of the control group (P<0.05). After 2 weeks of treatment, the Fugl-Meyer score and UCLA score of the upper limbs in the study group were higher than those in the control group (P<0.05). The rate of the incidence of adverse reactions and secondary injection in the study group were both lower than those in the control group (P<0.05).

The clinical efficacy of minimally invasive treatment of subacromial and subdeltoid bursitis patients under musculoskeletal ultrasound guidance is superior to that of traditional blind injection. It can relieve pain more effectively, improve shoulder joint function and upper limb function, and has a low need for secondary treatment and high safety.