ClinicalTrials.gg
RecruitingNCT07383558Updated Aug 17, 2026

Effect of Additional Sural Nerve PRF in Chronic Heel Pain

An observational study in Chronic Plantar Heel Pain, Plantar Fasciitis and Spur, Heel, sponsored by Diskapi Teaching and Research Hospital. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-08-17.

Sponsored by Diskapi Teaching and Research Hospital · Observational

From the registry’s dates

  • Started Jun 2025; still recruiting 1 year 5 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
48
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This observational study aims to compare the effectiveness of pulsed radiofrequency (PRF) treatment applied to the posterior tibial nerve alone versus PRF applied to both the posterior tibial and sural nerves in patients with chronic plantar heel pain. Outcomes will be assessed using the Visual Analog Scale (VAS) and the American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot score at baseline, 1 month, and 3 months after treatment.

Read the detailed description

This prospective observational cohort study evaluates whether the addition of sural nerve pulsed radiofrequency (PRF) to posterior tibial nerve PRF is associated with greater clinical improvement in patients with chronic plantar heel pain. In routine clinical practice, ultrasound-guided PRF is applied to the posterior tibial nerve, and in selected patients, additional PRF of the sural nerve is performed based on clinical judgment.

Patients are prospectively followed in two groups according to the treatment received: posterior tibial nerve PRF alone and posterior tibial nerve PRF combined with sural nerve PRF. Clinical outcomes are assessed at baseline and at 1 and 3 months after the procedure. Pain intensity is evaluated using the Visual Analog Scale (VAS), and functional outcome is assessed using the American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot score. Changes in these outcomes are compared between the two groups during the follow-up period.

02

Conditions studied

  • Chronic Plantar Heel Pain
  • Plantar Fasciitis
  • Spur, Heel

Keywords

  • posterior tibial nerve, sural nerve, heel pain, plantar pain
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In context

Fasciitis, Plantar

223 studies on the registry are indexed under Fasciitis, Plantar; 58 are open to participants now.

This study's planned enrollment of 48 is below the median of 60 across 24 observational studies indexed under Fasciitis, Plantar.

Browse Fasciitis, Plantar studies →

Lead sponsor

Diskapi Teaching and Research Hospital is the lead sponsor of 106 studies on the registry; 13 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients aged 18 to 65 years with chronic plantar heel pain who are eligible for ultrasound-guided pulsed radiofrequency (PRF) treatment and have a baseline Visual Analog Scale (VAS) pain score greater than 5. Eligible participants are prospectively enrolled and randomized to receive either PRF of the posterior tibial nerve alone or PRF of both the posterior tibial and sural nerves.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Age between 18 and 65 years

Presence of chronic plantar heel pain

Baseline VAS score >5

Exclusion criteria

Exclusion Criteria:

History of foot fracture or tumor

Pregnancy

Coagulopathy or use of antiplatelet therapy

Cognitive impairment preventing

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
48 participants (estimated)
Patient registry
No

Groups and cohorts

  • Posterior tibial nerve PRF

    Patients with chronic plantar heel pain who received ultrasound-guided pulsed radiofrequency treatment applied only to the posterior tibial nerve as part of routine clinical care.

    Procedure: Pulsed radiofrequency

  • Posterior tibial + sural nerve PRF

    Patients with chronic plantar heel pain who received ultrasound-guided pulsed radiofrequency treatment applied to both the posterior tibial nerve and the sural nerve as part of routine clinical care.

    Procedure: Pulsed radiofrequency

Interventions

  • ProcedurePulsed radiofrequency

    Ultrasound-guided pulsed radiofrequency applied to the posterior tibial nerve, with or without additional application to the sural nerve.

06

What researchers measure

Primary outcomes

  1. VAS

    Visual Analog Scale (VAS) is a simple tool used in clinical trials to measure pain intensity. Patients rate their pain on a scale, typically from 0 (no pain) to 10 (worst imaginable pain). It provides a quick, quantitative assessment of subjective pain and is commonly used to evaluate treatment effectiveness before and after intervention.Change in pain intensity assessed by Visual Analog Scale (VAS)

    Time frame: Baseline, 1 month, and 3 months post-procedure

Secondary outcomes

  1. AOFAS

    American Orthopaedic Foot and Ankle Society (AOFAS) score is a clinical outcome measure used to assess foot and ankle conditions. It combines pain (40 points), function (50 points), and alignment (10 points) into a total score out of 100. Higher scores indicate better clinical status. It is frequently used in clinical trials to evaluate surgical or conservative treatment outcomes.

    Time frame: Baseline, 1 month, and 3 months post-procedure

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • Agyekum EK, Ma K. Heel pain: A systematic review. Chin J Traumatol. 2015;18(3):164-9. doi: 10.1016/j.cjtee.2015.03.002. PubMed 26643244 ↗
  • Wu YT, Chang CY, Chou YC, Yeh CC, Li TY, Chu HY, Chen LC. Ultrasound-Guided Pulsed Radiofrequency Stimulation of Posterior Tibial Nerve: A Potential Novel Intervention for Recalcitrant Plantar Fasciitis. Arch Phys Med Rehabil. 2017 May;98(5):964-970. doi: 10.1016/j.apmr.2017.01.016. Epub 2017 Feb 14. PubMed 28209507 ↗
  • Yildiz G, Perdecioglu GRG, Yuruk D, Can E, Akkaya OT. Comparison of tibial nerve pulsed radiofrequency and intralesional radiofrequency thermocoagulation in the treatment of painful calcaneal spur and plantar fasciitis: a randomized clinical trial. Pain Med. 2024 Aug 1;25(8):493-499. doi: 10.1093/pm/pnae029. PubMed 38652568 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07383558
Responsible party
Damla Yürük (Supervisor Investigator, Diskapi Teaching and Research Hospital) — Principal investigator
First posted
Feb 3, 2026
Start date
Jun 1, 2025
Primary completion
May 1, 2026
Completion
Sep 1, 2026 (estimated)
Last update
Aug 17, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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