| Purpose: Trapezius hypertrophy,as A common problem of modern women,has been widely concerned.Most of the causes of trapezius hypertrophy are improper posture or overuse of shoulder muscle group due to work.At present,botulinum toxin injection is the most commonly used plastic treatment to relieve trapezius hypertrophy.By comparing the therapeutic effects of musculoskeletal ultrasound localization and conventional localization on trapezius hypertrophy,this study explored the localization methods and techniques for the injection of botulinum toxin type A into the trapezius muscle muscle,and proposed certain guiding significance for the clinical injection of botulinum toxin type A in the treatment of trapezius hypertrophy.Materials and methods: A total of 22 patients(44 sides)diagnosed with trapezius hypertrophy were selected from the plastic surgery Department of the First Affiliated Hospital of Dalian Medical University from September 2020 to September 2022.All patients were diagnosed with trapezius hypertrophy and required injection of botulinum toxin type A.All patients were female and had trapezius hypertrophy severity scores of grade 1 and above.Twenty-two patients were randomly divided into two groups:musculoskeletal ultrasound-guided precise injection group(group A)and routine injection group(group B),with 11 cases in each group(22 sides).Follow-up and measurement were conducted before injection,1 month after injection,3 months after injection,and 6 months after injection according to five indexes,namely,trapezius muscle thickness,positive trapezius muscle area proportion,trapezius muscle Angle,trapezius muscle hypertrophy score and patient satisfaction survey.The correlation of data was compared statistically.So the two injection methods to improve the effect of trapezius muscle hypertrophy comparative analysis.Results:The mean follow-up time of patients in both groups was more than 6months.The score of trapezius hypertrophy severity before injection and 3 months after injection were compared between the two groups,and the difference was statistically significant(P < 0.05).Comparative analysis of overall satisfaction of patients with trapezius muscle hypertrophy in the two groups showed statistical significance(P <0.05),and the total satisfaction rate of group A was higher than that of group B.Comparative analysis of trapezius muscle thickness between the two groups showed statistical significance(P < 0.05).A comparative analysis of the area proportion of the anteropositic trapezius muscle between the two groups showed statistically significant difference(P < 0.05).The Angle of trapezius muscle between the two groups was compared and the difference was statistically significant(P < 0.05).The effect of group A was better than that of group B,and there was no interaction between time and group.The effects of time on the thickness of the trapezius muscle,the area proportion of the positive trapezius muscle and the Angle of the trapezius muscle in both groups were "before injection >1 month after injection;Before injection >3 months after injection;Before injection >6 months after injection;After 6 months >1 month;After 6 months >3months ",that is,the musculoskeletal ultrasound-guided precision injection group and conventional injection group had the best effect after 3 months of injection.Conclusions: 1.Botulinum toxin type A injection has a good effect in improving the treatment of trapezius hypertrophy.2.Precise injection of botulinum toxin type A under musculoskeletal ultrasound guidance is better than routine injection of botulinum toxin type A in improving the treatment of trapezius hypertrophy. |
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