Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT06298747 |
Other study ID # |
Cervical root PRF |
Secondary ID |
|
Status |
Completed |
Phase |
|
First received |
|
Last updated |
|
Start date |
November 1, 2022 |
Est. completion date |
July 2, 2023 |
Study information
Verified date |
March 2024 |
Source |
Diskapi Teaching and Research Hospital |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
Chronic cervical pain is a common disorder with a prevalence of approximately 35% in adults.
Cervical radicular pain is defined as radiating pain in the upper limb caused by compression
or inflammation of the nerve roots ascending from the intervertebral foramen to the spinal
cord, due to disc herniation or spinal stenosis. C7 and C6 are the two most commonly affected
nerve roots. Various treatment modalities are available, including oral medications,
physiotherapy, and epidural steroid injections. However, chronic and persistent pain that
develops as a result of some patients not responding to these treatments. Ultrasound-guided
selective cervical nerve root block and pulsed radiofrequency are interventional treatments
used in patients with radicular cervical pain unresponsive to conservative treatments. Pulsed
radiofrequency (PRF) treatment of peripheral nerves may provide long-term pain relief in
patients with short-term pain relief with a local anesthetic block. Studies have shown the
effectiveness of PRF therapy applied to selective cervical nerve roots in relieving cervical
radicular pain.
Description:
Pulsed radiofrequency treatment applied to selective cervical nerve roots (C5, C6, and C7)
under ultrasound guidance is frequently used in patients with cervical radicular pain due to
cervical disc herniation who do not respond adequately to medical treatment and
physiotherapy.
Pain intensity was evaluated at baseline and 1,3 and 6 months after US-guided selective
cervical nerve root PRF treatment using VAS (Visual analog scale). The primary outcome
measure was percent reduction in pain, with 50% pain relief lasting at least 6 months was
defined as a positive categorical outcome.
Patients' functionality and neuropathic pain status were assessed using the Neck Disability
Index (NDI) and Douleur Neuropathique 4 Questions (DN4) at baseline and 1,3 and 6 months
after US-guided selective cervical nerve root PRF treatment, respectively. Secondary outcome
measure was defined as a positive categorical outcome of 50% or more improvement in these
scores for at least 6 months.
In addition, demographic data such as age (years), gender, duration of pain (months), pain
side (right or left), affected cervical nerve root level (one or multiple levels), and
history of surgery for cervical disc herniation and analgesic use (nonsteroidal
anti-inflammatory drugs or opioids) were obtained from patient data and retrospectively
analyzed the patient's electronic medical history records.
The primary aim of this study was to determine the efficacy of US-SCNR PRF treatment, and the
clinical and demographic variables associated with treatment outcomes. The secondary aim of
this study was to determine the improvement in functionality and neuropathic pain status of
patients after the procedure, and treatment-related adverse events.