Contralateral Neural Tissue Mobilization for Cervical Radiculopathy

NCT ID: NCT07248943

Last Updated: 2025-11-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-31

Study Completion Date

2026-09-30

Brief Summary

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Cervical radiculopathy (CR) is a common form of peripheral neuropathic pain characterized by neck and upper extremity symptoms in a dermatomal distribution. Neural tissue mobilization (NTM) is an intervention shown to provide benefit for neuropathic pain presentations; however, some patients are unable to tolerate direct treatment of the symptomatic limb due to allodynia, hyperalgesia, or fear of movement. Early evidence from lower-extremity research suggests that contralateral NTM may produce therapeutic effects similar to ipsilateral treatment, but this approach has not been investigated in individuals with upper-extremity symptoms.

This exploratory case series aims to examine the immediate effects of contralateral NTM in adults presenting to outpatient physical therapy with CR. Participants will undergo pre- and post-treatment assessments of pain intensity, disability, fear-avoidance beliefs, pain distribution, and neurodynamic mechanosensitivity. Findings will provide preliminary evidence regarding whether contralateral NTM may serve as a viable treatment option when direct symptomatic limb treatment is not tolerated.

Detailed Description

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Background and Rationale:

Pain phenotyping has emerged as an important clinical framework within physical therapy, enabling classification of pain presentations on the basis of pain mechanisms, clinical features, and patient-reported symptoms. Current pain phenotyping models identify three primary mechanisms: nociceptive, peripheral neuropathic, and nociplastic pain. Peripheral neuropathic pain is estimated to account for approximately one-quarter of patients presenting to outpatient physical therapy. It is characterized by pain arising from a lesion or disease of the somatosensory nervous system, with complex underlying biological mechanisms including neurogenic inflammation, immune dysregulation, demyelination, axonal loss, ion channel changes, and vascular alterations. Clinically, peripheral neuropathic pain commonly presents with pain in dermatomal or cutaneous nerve distributions, a history of nerve injury or mechanical compromise, and symptom provocation during neurodynamic or palpatory testing.

Cervical radiculopathy (CR) is a frequent and well-recognized form of peripheral neuropathic pain. CR most often results from intervertebral disc herniation or spondylosis, typically affecting the C7, C6, and C8 nerve roots. Patients commonly present with neck pain, upper extremity pain, and/or sensory, motor, or reflex deficits. Current evidence suggests that when patient presentation aligns with a peripheral neuropathic phenotype, interventions should be matched accordingly. Neural tissue mobilization (NTM) has demonstrated effectiveness in individuals with chronic neck and arm pain and is believed to exert beneficial effects through improvements in neuromeningeal mobility, blood flow, intraneural and extraneural fluid dynamics, inflammatory modulation, and graded exposure to movement.

However, some patients with CR present with significant allodynia, hyperalgesia, or fear of movement, making direct treatment of the symptomatic extremity challenging. Basic neuroanatomy and preliminary research suggest that contralateral NTM may produce therapeutic effects similar to ipsilateral NTM. Although early work in the lower extremity-including one clinical trial and one case study-has shown that contralateral NTM can reduce pain related to lumbar radiculopathy, this concept has not yet been explored in the upper extremity. Therefore, this exploratory study seeks to examine whether contralateral NTM produces immediate positive effects in patients presenting to physical therapy with CR.

Study Design:

This investigation uses a case-series design with pre- and post-intervention measures. A convenience sample will be recruited from four outpatient physical therapy clinics specializing in musculoskeletal pain. Clinicians participating in the study must have completed at least a 2-day (15-hour) post-professional training course in pain science and assessment of peripheral neuropathic pain, including instruction in NTM.

A total of approximately 40 patients aged 18 years or older will be recruited over a 3-month period. Eligible individuals must demonstrate unilateral arm pain in a dermatomal distribution consistent with CR, with or without neck pain. Exclusion criteria include bilateral upper-extremity pain, non-dermatomal pain, contraindications to NTM on the contralateral limb (e.g., recent surgery, significant tissue injury, allodynia), inability to read English, or unwillingness to consent.

Procedures and Outcome Measures:

After obtaining written informed consent, participants will complete baseline (pre-intervention) measures including:

Demographic questionnaire (non-identifiable data only)

Numeric Pain Rating Scale (NPRS) for upper-extremity pain

Neck Disability Index (NDI)

Fear-Avoidance Beliefs Questionnaire - Physical Activity subscale (FABQ-PA)

Pain drawing, quantified using a standardized grid overlay

Upper Limb Neurodynamic Test 1a (ULNT1a) of the affected limb, including goniometric measurement of elbow extension at symptom onset

Following baseline measures, each participant will receive a single treatment session of contralateral NTM, performed on the limb opposite the symptomatic side. The intervention consists of 8-10 minutes of standardized passive neurodynamic mobilizations in supine with specific variations in cervical positioning, followed by active "slider" and "tensioner" exercises in sitting.

Immediately after the intervention, participants will repeat all outcome measures (NPRS, FABQ-PA, pain drawing, and ULNT1a). After data collection is complete, clinical care will proceed according to the treating clinician's usual practice and will not be influenced by study procedures.

Data Handling and Analysis:

All data packets will be de-identified and coded by clinic and clinician. Data will be transferred to a secure electronic spreadsheet for analysis. Descriptive statistics (means, standard deviations, frequencies, and percentages) will summarize demographic variables and baseline characteristics. Pre- to post-intervention changes will be evaluated using paired t-tests with statistical significance set at p \< 0.05.

Purpose of the Study:

The purpose of this exploratory case series is to determine whether contralateral neural tissue mobilization produces immediate changes in pain intensity, disability, fear-avoidance beliefs, pain distribution, and neurodynamic mechanosensitivity among individuals presenting with clinical features of cervical radiculopathy. Findings may inform future research and contribute to clinical understanding of whether contralateral NTM is a viable treatment option in patients unable to tolerate direct treatment of the symptomatic extremity

Conditions

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Cervical Radiculopathy Pain Neuropathic Pain Radicular Pain

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Participants with unilateral cervical radiculopathy will receive a single treatment session of neural tissue mobilization applied to the contralateral (uninvolved) upper extremity. The intervention is delivered by licensed physical therapists with post-professional training in pain science and neurodynamic techniques.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Contralateral Neural Tissue Mobilization

Participants with unilateral cervical radiculopathy will receive a single treatment session of neural tissue mobilization applied to the contralateral (uninvolved) upper extremity. The intervention is delivered by licensed physical therapists with post-professional training in pain science and neurodynamic techniques.

Group Type EXPERIMENTAL

Contralateral Neural Tissue Mobilization (NTM)

Intervention Type BEHAVIORAL

A standardized 8-10 minute contralateral NTM protocol will be performed and includes:

1. Supine passive neurodynamic mobilization (ULNT1a pattern) with:

* Cervical side flexion toward the non-symptomatic side
* Movement to the point of resistance
* 1-2 seconds of gentle engagement followed by release
* Repeated 15 times
2. Supine passive neurodynamic mobilization with:

* Neutral cervical position
* Repeated 15 times
3. Supine passive neurodynamic mobilization with:

* Cervical side flexion away from the non-symptomatic side
* Repeated 15 times
4. Sitting active neurodynamic exercises (contralateral UE)

* 10 active "sliders"
* 10 active "tensioners"
* 10 additional active "sliders" The neurodynamic pattern follows the ULNT1a sequence: shoulder abduction to 90°, external rotation, forearm supination, wrist/finger extension with ulnar deviation, and progressive elbow extension.

Single treatment session delivered in-person by a trained physical therapist.

Interventions

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Contralateral Neural Tissue Mobilization (NTM)

A standardized 8-10 minute contralateral NTM protocol will be performed and includes:

1. Supine passive neurodynamic mobilization (ULNT1a pattern) with:

* Cervical side flexion toward the non-symptomatic side
* Movement to the point of resistance
* 1-2 seconds of gentle engagement followed by release
* Repeated 15 times
2. Supine passive neurodynamic mobilization with:

* Neutral cervical position
* Repeated 15 times
3. Supine passive neurodynamic mobilization with:

* Cervical side flexion away from the non-symptomatic side
* Repeated 15 times
4. Sitting active neurodynamic exercises (contralateral UE)

* 10 active "sliders"
* 10 active "tensioners"
* 10 additional active "sliders" The neurodynamic pattern follows the ULNT1a sequence: shoulder abduction to 90°, external rotation, forearm supination, wrist/finger extension with ulnar deviation, and progressive elbow extension.

Single treatment session delivered in-person by a trained physical therapist.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Age 18 years or older Presence of unilateral upper-extremity pain in a dermatomal distribution consistent with cervical radiculopathy (with or without neck pain)
* Able to read and understand English
* Willing and able to provide written informed consent

Exclusion Criteria

* Bilateral upper-extremity pain
* Upper-extremity pain that is non-dermatomal in distribution
* Presence of contraindications or precautions preventing use of the contralateral limb for neural tissue mobilization (e.g., injury, allodynia, recent surgery, postsurgical complications)
* Not willing to participate in the study
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Rockhurst University

OTHER

Sponsor Role collaborator

Evidence In Motion

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

References

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Other Identifiers

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ContralateralNTM2025

Identifier Type: -

Identifier Source: org_study_id

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