The Effect of ESWT Session Count on Clinical Parameters in the Treatment of Chronic Plantar Fasciitis; Randomized Controlled Study
The Effect of ESWT Session Count on Clinical Parameters in the Treatment of Chronic Plantar Fasciitis; Randomized Controlled Study
Extracorporeal shock wave therapy (ESWT) has become widely preferred in Turkey and worldwide in recent years for the treatment of musculoskeletal diseases due to its non-invasive nature, ease of application, and low risk of complications, as it does not require surgical intervention. However, there is no consensus in the literature regarding the energy level used in ESWT applications, the frequency of application, and especially the ideal number of sessions. Different centers apply varying protocols in clinical practice, which can lead to heterogeneity in treatment outcomes. Scientifically determining the effect of variation in the number of ESWT sessions on clinical outcomes is important for establishing standard treatment protocols. Therefore, the aim of our study is to contribute to the existing literature by investigating the effect of variation in the number of ESWT sessions on clinical parameters such as pain, functional status, and quality of life in the treatment of chronic plantar fasciitis, and to develop more effective and evidence-based treatment approaches in patient management.
Plantar fasciitis is a common musculoskeletal disorder resulting from a degenerative and inflammatory process of the plantar fascia, which supports the medial longitudinal arch of the foot (Roxas M, 2005). While it affects both sexes, all age groups, and ethnicities, it is more common in women aged 40-60 (Latt LD et al., 2020). The most frequent cause of chronic heel pain, plantar fasciitis typically presents with tenderness on palpation at the medial tubercle of the calcaneus and pain that begins with the first step in the morning (Unuvar BS et al., 2024). This clinical picture can negatively impact patients' daily activities, work capacity, and quality of life, leading to significant functional limitations. The pathophysiology of plantar fasciitis is multifactorial, with mechanical overload, repetitive microtraumas, prolonged standing, obesity, inappropriate footwear, and biomechanical disorders being among the main etiological factors (Avraham D et al., 2025). This process leads to microtears in the plantar fascia, collagen degeneration, and the development of a chronic inflammatory response. Recent histopathological studies, particularly in cases of chronic plantar fasciitis, have revealed that the pathological process is not limited to an inflammatory response but also involves significant degenerative changes. This degenerative process is characterized by disorganization of collagen fibers, increased fibroblast activity, and tissue deterioration. These findings explain why classical anti-inflammatory treatment approaches are insufficient in some patients and the underlying mechanism for limited clinical response (Wearing SC et al., 2006). Diagnosis is usually based on the patient's history and physical examination findings; advanced imaging techniques are typically not required in such cases. Ultrasonography and magnetic resonance imaging can be used in atypical or treatment-resistant cases where differential diagnosis is necessary (Cole C et al., 2005). The first-line approach in treatment is conservative methods. Physical therapy programs including non-steroidal anti-inflammatory drugs, night splints, orthotics, activity modification, and stretching-strengthening exercises are frequently applied (Cole C & Crawford R, 2011) (Garrett TR & Neibert PJ, 2013). However, in approximately 10-20% of patients, symptoms persist for more than six months, developing into chronic plantar fasciitis, and this group requires additional treatment methods. In recent years, minimally invasive methods have gained increasing importance in the treatment of chronic plantar fasciitis. Extracorporeal shock wave therapy (ESWT), being a non-invasive method that does not require surgical intervention, easy to apply, and with a low risk of complications, has become widely preferred in our country and worldwide in the treatment of musculoskeletal diseases in recent years. ESWT is thought to promote tissue healing by increasing local microcirculation, stimulate neovascularization, and provide analgesic effects by modulating pain transmission. It is also believed that ESWT modulates pain transmission and supports regenerative processes in degenerated tissue (Simplicio CL et al., 2020). Clinical studies have reported positive results, particularly in chronic plantar fasciitis cases, in terms of reducing pain intensity, increasing functional capacity, and improving quality of life. Thanks to these properties, ESWT stands out as an effective alternative to surgery in patients who do not respond to conservative treatments (Melese H et al., 2022) (Gerdesmeyer L et al., 2008) (Kudo P et al., 2006). In addition, laser therapy, platelet-rich plasma (PRP) injections, and corticosteroid injections are among other minimally invasive treatment options used (Aleid AM et al., 2025). However, there is no consensus in the literature regarding the energy level used in ESWT applications, the frequency of application, and especially the ideal number of sessions (Park KD et al., 2018). Different centers apply varying protocols in clinical practice, which can lead to heterogeneity in treatment outcomes. Therefore, scientifically determining the effect of the number of ESWT sessions on clinical outcomes is important for establishing standard treatment protocols. In this context, investigating the effect of the number of ESWT sessions on clinical parameters such as pain, functional status, and quality of life in the treatment of chronic plantar fasciitis will contribute to the existing literature and help develop more effective and evidence-based treatment approaches in patient management.
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