Cadaveric experiments to evaluate pressure wave generated by radial shockwave treatment of plantar fasciitis

Cirovic, Srdjan; Gould, David H.; Park, Derek Howard; Solan, Matthew

doi:10.1016/j.fas.2016.08.006

Cited by 4 publications

(9 citation statements)

References 19 publications

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“…The reverberations in the applicator generated some positive and negative pulses inside the tissues, while the amplitudes decayed exponentially. The overall waveform was similar to measurements in cadaveric experiments by a hydrophone . Figure b shows the axial distribution of P + and P − of the first compression and rarefaction waves.…”

Section: Resultssupporting

confidence: 72%

“…The flexibility of the PVDF film sensor made it more suitable to measure the pressure inside biological tissues in vivo or in vitro, compared to the needle‐type hydrophone that was easily damaged if exposed to any physical force. [16b,19] To avoid the short circuit of the sensor in the aqueous environment, the sensor was coated with a transparent adhesive to form a thin and soft water‐resisting layer. The sensor was connected to a broadband charge amplifier (YE5856, Sinocera Piezotronics, Inc., China) and a digital phosphor oscilloscope (DPO3054, Tektronix, Inc., USA) to record the pressure data.…”

Section: Methodsmentioning

confidence: 99%

“…The overall waveform was similar to measurements in cadaveric experiments by a hydrophone. [19] Figure 6b shows the axial distribution of P + and P − of the first compression and rarefaction waves. The amplitudes of P + and P − were approximately inversely proportional to H, except that the variation of P − showed complex variation in the skin region.…”

Section: As Shown In Tablementioning

confidence: 99%

“…Combining with numerical simulations, their results highlighted the nonlinear viscoelastic effects of biological tissues on characterizing wave propagations. Recently, Cirovic et al determined the pressure generated by rESWT at the deep surface of the plantar fascia in human cadaveric feet by carefully inserting a needle hydrophone . Finite element models of rESWT were also established by the same group to simulate the rESWT treatments for chronic plantar fasciitis .…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Cirovic et al determined the pressure generated by rESWT at the deep surface of the plantar fascia in human cadaveric feet by carefully inserting a needle hydrophone. [19] Finite element models of rESWT were also established by the same group to simulate the rESWT treatments for chronic plantar fasciitis. [20] Along with the clinic observations, preliminary cellular experiments in petri dishes have been used to study the cellular-level biological responses to rESWT.…”

Section: Introductionmentioning

confidence: 99%

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Quantitative Assessments of Mechanical Responses upon Radial Extracorporeal Shock Wave Therapy

et al. 2017

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Although radial extracorporeal shock wave therapy (rESWT) has been widely used to treat orthopedic disorders with promising clinical results, rESWT largely relies on clinicians' personal experiences and arbitrary judgments, without knowing relationships between administration doses and effective doses at target sites. In fact, practitioners lack a general and reliable way to assess propagation and distribution of pressure waves inside biological tissues quantitatively. This study develops a methodology to combine experimental measurements and computational simulations to obtain pressure fields from rESWT through calibrating and validating computational models with experimental measurements. Wave pressures at the bottom of a petri dish and inside biological tissues are measured, respectively, by attaching and implanting flexible membrane sensors. Detailed wave dynamics are simulated through explicit finite element analyses. The data decipher that waves from rESWT radiate directionally and can be modeled as acoustic waves generated from a vibrating circular piston. Models are thus established to correlate pressure amplitudes at the bottom of petri dishes and in the axial direction of biological tissues. Additionally, a pilot simulation upon rESWT for human lumbar reveals a detailed and realistic pressure field mapping. This study will open a new avenue of personalized treatment planning and mechanism research for rESWT.

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Section: Resultssupporting

confidence: 72%

Section: Methodsmentioning

confidence: 99%

Section: As Shown In Tablementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Quantitative Assessments of Mechanical Responses upon Radial Extracorporeal Shock Wave Therapy

et al. 2017

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Modalities Part 5

Weber,

Tomlinson

2024

Physical Rehabilitation for Veterinary Technicians and Nurses

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Therapeutic Ultrasound and Shockwave Therapy for Tendinopathy

Smallcomb

Khandare

Vidt

et al. 2021

Am J Phys Med Rehabil

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Tendon injury is prevalent and costly in the United States, comprising 45% of the 66 million musculoskeletal injuries and costing $114 billion annually. Surgical and therapeutic methods, such as arthroscopic surgery, dry needling, and physical therapy, produce mixed success in reintroducing a healing response in tendinopathy due in part to inconsistent dosing and monitoring. Ultrasound is one therapeutic modality that has been shown to noninvasively induce bioeffects in tendon that may help promote healing. However, results from this modality have also been mixed. This review compares the current state of the field in therapeutic ultrasound and shockwave therapy, including low-intensity therapeutic ultrasound, extracorporeal shockwave therapy, and radial shockwave therapy, and evaluates the efficacy in treating tendinopathies with ultrasound. We found that the mixed successes may be attributed to the wide variety of achievable parameters within each broader treatment type and the lack of standardization in measurements and reporting. Despite mixed outcomes, all three therapies show potential as an alternative therapy with lower-risk adverse effects than more invasive methods like surgery. There is currently insufficient evidence to conclude which ultrasound modality or settings are most effective. More research is needed to understand the healing effects of these different therapeutic ultrasound and shockwave modalities.

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Cadaveric experiments to evaluate pressure wave generated by radial shockwave treatment of plantar fasciitis

Cited by 4 publications

References 19 publications

Quantitative Assessments of Mechanical Responses upon Radial Extracorporeal Shock Wave Therapy

Quantitative Assessments of Mechanical Responses upon Radial Extracorporeal Shock Wave Therapy

Modalities Part 5

Therapeutic Ultrasound and Shockwave Therapy for Tendinopathy

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