NUMERICAL PAIN RATING SCALE (NPRS) INDEX ON SUBJECTS OF EXTRACORPOREAL SHOCK WAVE THERAPY INTERVENTION ON ON THE TRIGGER POINT OF THE UPPER TRAPIZEUS MUSCLE

Hiệp Phạm Xuân, Diệp Trần Thị, Như Lê Thị Huỳnh

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Abstract

Backgrounds: The cervical spine is a complex region with many small components that make up a complex and perform many important functions in the human body. Chronic neck pain can contribute to psychological problems such as anxiety and depression, which further complicate the management and treatment of this condition. Furthermore, people with neck problems may experience limitations in their ability to work, leading to reduced productivity and potential financial stress. Treatment of neck problems often involves an multidisciplinary approach, including pain management, physiotherapy, internal medicine, chiropractic care, and in severe cases, surgery. Early intervention and prompt medical care for any discomfort or pain associated with the neck can help prevent the progression of minor problems into more serious impairments. It can be said that pain is an urgent problem that needs to be improved in subjects with neck impairments. Pain is a subjective issue from the patient himself, but it will also be the foundation for the therapist to find signs of the disease or the patient's problems, from which appropriate intervention can be given. In Vietnam, shock waves in Physical Therapy have been widely used, but there have not been many studies in Vietnam to evaluate its effectiveness on domestic subjects, mainly based on foreign medical evidence. Objectives: To compare the changes before and after the intervention in the Numerical Pain Rating Scale (NPRS) in the subjects who received external shockwave therapy as well as to compare the differences in the changes in the NPRS index between the intervention group and the control group. Methods: The intervention study was described on 45 subjects diagnosed with neck pain (M54.2) or cervical spondylosis (M47) with pain points in the upper trapezius muscle who came to the Hospital of Traditional Medicine Ho Chi Minh City for examination and treatment. The treatment group received 1500 shockwave pulses, 10 Hz frequency, 120 J energy level and the control group received 500 shockwave pulses, 5 Hz frequency, 60 J energy level within 5 weeks. The NPRS index was collected in the subjects before and after the intervention. Results: The NPRS scale in our study recorded a significant change in the standard intervention group before and after treatment, respectively 6.04±1.6 and 2.37±1.43 (p<0.0001) with a reduction of about 2.54 times compared to a change of nearly 2 times in the minimal intervention group. Conclusions: The study evaluated the effectiveness of improving the pain of subjects with pain points on the upper trapezius muscle significantly through shock wave intervention with the recommended time of 5 consecutive treatments in 5 weeks, the allowable intensity is 120J with 1500 shocks and frequency 16Hz. It is possible to continue to apply shock waves with the same recommended dose for pain points on different muscle locations on the body and the study is the premise for some future application directions related to pain locations on muscles and tendons. This can also be a basis for comparison with other treatment modalities such as ultrasound or laser or some other interventions.

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References

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