• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 하계종합학술대회 논문집(4)
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• pp.186-189
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• 2000

In this paper, the relation between the vibration and the sound radiated due to the piezoelectric ESWL (Extra-corporeal Shock Wave Lithotripter) is examined And the relation between the focus and the vibration of the objects is examined. The same experiments with the objects that can be breton are done and the relation between the vibration and the break efficiency of the phantom is experimentally investigated. These results show that the relativity between the power of the peak frequency and the break efficiency can be confirmed.

• Clinical Pain
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• 제18권2호
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• pp.138-141
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• 2019

Lateral epicondylopathy represents pain in the lateral (radial aspect) of the elbow caused by degeneration in the common extensor tendon. Calcium deposit frequently developes in lateral epicondylopathy, with the prevalence up to 46%. There are considerable debates on its treatment protocols for lateral epicondylopathy so far, likewise, the effective treatment method for calcific lateral epicondylopathy has not been established. We report here a case of chronic intractable calcific lateral epicondylopathy treated with ultrasound-guided barbotage and focused type extracorporeal shock wave therapy (ESWT). To our knowledge, this is the first report of calcific lateral epicondylopathy treated by ultrasound-guided barbotage combined with ESWT.

• PNF and Movement
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• 제18권2호
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• pp.245-254
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• 2020

Purpose: The study investigated the effects of extracorporeal shock wave therapy with myofascial release techniques (ESWT+MFR) on pain, movement, and function in patients with myofascial pain syndrome. Methods: Forty participants with upper trapezius trigger points were recruited and randomly allocated to two groups: an experimental group (n = 20) and a control group (n = 20). The experimental group performed the ESWT+MFR, and the control group performed only myofascial release techniques. Each group was treated for 15 minutes, twice a week for four weeks. Pain was assessed using a visual analogue scale and a pressure pain threshold measure. Movement was assessed by cervical range of motion, and cervical and shoulder function were assessed on the Constant-Murley Scale and the Neck Disability Index before and after treatment. Results: The results indicate statistically significant improvements in the two groups on all parameters after intervention as compared to baseline (p < 0.05). As compared to the control group, the experimental group showed statistically significant improvements on the visual analogue scale and pressure pain threshold, cervical range of motion (except rotation), and on the Neck Disability Index (p < 0.05). Conclusion: The ESWT+MFR is more effective than myofascial release techniques for pain, movement, and function in patients with myofascial pain syndrome and would be clinically useful for physical therapists treating myofascial pain syndrome.

• Clinics in Shoulder and Elbow
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• 제19권1호
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• pp.20-24
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• 2016

Background: Extracorporeal shock wave therapy (ESWT) is one of the treatment options used for patients with myofascial pain syndrome (MPS), although its effectiveness is controversial. The purpose of this study was to evaluate the effectiveness of ESWT in the treatment of MPS in terms of pain relief and functional improvements. Methods: We assessed 93 patients with MPS who underwent ESWT from March 2009 to July 2014. After exclusion of 25 patients with shoulder diseases, 68 patients were enrolled in the study. The mean follow-up period was 7.5 months (${\pm}4.2weeks$), and the average duration of symptoms was 5 months (range, 2-16 months). ESWT was applied to intramuscular taut bands and referred pain areas once a week for 3 weeks. Visual analog scale (VAS) pain scores and American Shoulder and Elbow Surgeons (ASES) scores were obtained at an initial assessment and at the 6-week, 3-month, and 6-month follow-up assessments. Results: VAS pain scores and ASES scores improved significantly after 3 sessions of ESWT (p<0.05). Both scores were improved, although not significantly, after 6 weeks (p>0.05). Conclusions: ESWT is an effective treatment option for patients with MPS.

• 대한통합의학회지
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• 제9권2호
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• pp.141-152
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• 2021

Purpose: This study aimed to compare the effects of ischemic compression (IC) therapy and extracorporeal shock wave therapy (ESWT) in patients with upper trapezius myofascial pain syndrome and to present an effective treatment method for these patients. Methods: A total of 42 patients with upper trapezius myofascial pain syndrome were randomly assigned to the IC group (n = 21) and ESWT group (n = 21). IC therapy and ESWT were performed in the IC and ESWT groups, respectively. Treatment was applied to the trigger point of the upper trapezius muscle. Visual analog scales (VAS), pain pressure threshold (PPT), range of motion, neck disability index (NDI), and fear-avoidance belief questionnaire (FABQ) were evaluated before and after the intervention to compare its effectiveness. Results: Both groups showed significant differences before and after the intervention in VAS, PPT, NDI, FABQ, flexion, extension, right side bending, and left side bending (p <.05). In addition, there were significant differences in the IC group compared to the ESWT group in VAS, PPT, and NDI (p <.05). Conclusion: IC therapy and ESWT applied to patients with upper trapezius myofascial pain syndrome are mediating methods of pain, function, and psychosocial effects. In addition, IC therapy may be a more effective mediating method for pain and dysfunction than ESWT.

• 대한통합의학회지
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• 제9권4호
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• pp.237-249
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• 2021

Purpose : This study was to compare the effect changes after physical therapy (extracorporeal shock wave therapy + high-load strengthening exercise) or corticosteroid injection in patients diagnosed with chronic plantar fasciitis. Methods : A total of 40 patients were randomly assigned to each group of 20. According to the intervention method, "Group 1. Physiotherapy" was performed for 12 weeks, and "Group 2. Corticosteroid injection" was performed only once. As a pre-intervention test, plantar fascia thickness, pain intensity I, II (What is the most painful moment of the day?, How painful is the first step in the morning?), and functional performance were measured. To compare the effects of each group, the tests 3, 6, and 12 weeks after were also performed using the same measurement method. Also, after 12 weeks, patient satisfaction was also compared. Results : There was no significant difference between the groups in the change in the thickness of the plantar fascia during all periods. However, pain intensity I, II was significantly lower in Group 1 than in Group 2 at only 12 weeks and functional performance was also significantly increased in Group 1 compared to Group 2 at only 12 weeks. Also, there was no significant difference between groups in patient satisfaction. Conclusion : The physiotherapy protocol, which consisted of extracorporeal shock wave therapy and high-load strengthening exercise, showed excellent results, especially after 12 weeks, compared to corticosteroid injection. It is recommended as a more effective treatment method as it is possible to safely return to daily life by reducing pain and improving functional performance.

• The Journal of Korean Physical Therapy
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• 제34권3호
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• pp.91-97
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• 2022

Purpose: This study investigated the short-term effectiveness of extracorporeal shock wave therapy (ESWT) on pain, the ankle instability, the ankle function, dorsiflexion range of motion (ROM), and dynamic balance in patients with chronic ankle instability (CAI). Methods: Eighteen participants were divided into an experimental (n=9) and control group (n=9). The ESWT in the experimental group was applied to the lateral collateral ligament in combination with the tibialis anterior whereas the ESWT was applied to the lateral collateral ligament of the ankle alone in the control group. Pain, the ankle instability, the ankle function, dorsiflexion ROM, and dynamic balance were measured using the Visual analog scale, Cumberland ankle instability tool, American Orthopedic Foot and Ankle Society ankle-hindfoot score, weight-bearing lunge, and Y-balance test, before and after ESWT intervention. Results: Significant interactions (group × time) and time effects were observed in the dorsiflexion ROM and dynamic balance. Bonferroni's post-hoc analysis showed that the experimental group revealed a more significant change in dorsiflexion ROM and dynamic balance than the control group. There was a significant time effect in the pain, the ankle instability, and the ankle function, but no significant interaction (group × time) was observed. Conclusion: The ESWT could improve the pain, ankle instability, ankle function, dorsiflexion ROM, and dynamic balance in patients with CAI. Furthermore, the ESWT combined with lateral ankle ligaments and tibialis anterior more improves the dorsiflexion ROM and dynamic balance.

• Clinical Pain
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• 제20권1호
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• pp.25-29
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• 2021

Upper limb morbidity including shoulder pain, lymphedema, adhesive capsulitis, myofascial pain syndrome, and limited range of motions (LROMs) occurs frequently in breast cancer patients. Especially restricted upper limb motion aggravated by chronic lymphedema results in functional limitation and impaired activities of daily living (ADL). However, conventional rehabilitation therapy including complex decongestive therapy and stretching exercise is insufficient for managing advanced breast cancer patients with complex upper limb morbidity. Here, we report a case of breast cancer-related chronic lymphedema in a 62-years old female with severe LROM in all joints of the affected upper extremity that caused severe disability in ADL. Significant improvements in range of motion and upper extremity function were observed after serial extracorporeal shock wave therapy (ESWT), combined with conventional rehabilitation therapy. Therefore, ESWT might be recommended for managing the extensive limited joint motion which causes functional decline in a patient of chronic lymphedema with trophic skin change.

• Archives of Plastic Surgery
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• 제49권4호
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• pp.554-560
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• 2022

Background Hypertrophic scars cause aesthetic concerns and negatively affect the quality of life. A gold standard treatment for hypertrophic scars has not been established due to various responses of modalities. Extracorporeal shock wave therapy (ESWT) is a noninvasive and affects scar remodeling by fibroblast regulation. This study investigated the effectiveness of ESWT for hypertrophic scars. Methods Twenty-nine patients were enrolled. All patients underwent ESWT once a week for 6 consecutive weeks. Their scars were assessed using the Patient and Observer Scar Assessment Scale (POSAS), erythema index, melanin index, and scar pliability before treatment and again 4 weeks after treatment completion. Results Thirty-four hypertrophic scars in this study had persisted for between 6 months and 30 years. Most scars developed after surgical incision (55.88%). The chest and upper extremities were the predominant areas of occurrence (35.29% each). Most of the POSAS subscales and total scores were significantly improved 4 weeks after treatment (p < 0.05). Furthermore, the pain, itching, and pigmentation subscale were improved. The pliability, melanin index, and erythema index were also improved, but without significance. The patients were satisfied with the results and symptoms alleviation, although subjective score changes were insignificant. No serious adverse events were found. The patients reported pruritus in 62.5% and good pain tolerance in 37.5%. Subgroup analyses found no differences in scar etiologies or properties at different parts of the body. Conclusion The ESWT is a modality for hypertrophic scar treatment with promising results. Most of POSAS subscales were significantly improved.

• 대한핵의학회:학술대회논문집
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• 대한핵의학회 1990년도 제29차 춘계학술대회
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• pp.200.1-200.1
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• 1990