Spurling’s test: Procedure, interpretation, and clinical accuracy

Key Takeaways

Spurling’s test is a high-specificity clinical maneuver (85-95%) used to identify cervical nerve root compression by reproducing radicular arm symptoms.

A positive result requires pain, numbness, or tingling that radiates into the ipsilateral upper extremity – local neck pain alone does not count as positive.

Low sensitivity (30-60%) means a negative Spurling’s test does not rule out cervical radiculopathy; additional imaging or electrodiagnostic testing is often required.

Pabau’s digital forms and structured client records help physiotherapists and chiropractors document Spurling’s test findings accurately within SOAP notes.

Spurling’s test: Definition, procedure, and clinical interpretation

Cervical radiculopathy is one of the most commonly missed musculoskeletal diagnoses in clinical practice. The Spurling’s test gives clinicians a fast, bedside method to reproduce the patient’s radicular symptoms and build a confident case for nerve root involvement before ordering imaging. Understanding exactly how to perform it, and how to interpret what you find, is essential for any practitioner working with neck and upper limb complaints.

This guide covers the anatomy behind the test, a step-by-step procedure, result interpretation, diagnostic accuracy evidence, and how to document findings in a clinical setting. It is written for physiotherapists, chiropractors, and orthopedic clinicians.

What is Spurling’s test?

Spurling’s test, also known as the maximal cervical compression test or foraminal compression test, is a physical examination maneuver used to assess for cervical radiculopathy. The examiner passively extends the patient’s neck, rotates the head toward the symptomatic side, then applies a downward axial load to the top of the skull. A positive Spurling’s test occurs when this compression reproduces the patient’s familiar radicular symptoms into the ipsilateral upper extremity.

The test was first described by Roy Spurling and W.B. Scoville in 1944 and remains one of the most widely cited orthopedic special tests for cervical spine assessment. It is used across physiotherapy, chiropractic, orthopedic, and sports medicine settings as part of a broader cervical physical examination.

Anatomy behind Spurling’s test: Why foraminal compression provokes symptoms

The cervical intervertebral foramina are bony channels through which spinal nerve roots exit the spinal column. Extending the neck causes the intervertebral disc to bulge posteriorly, narrowing the foramina on both sides. Adding ipsilateral rotation narrows the foramen further on the side the head is turned toward. Axial compression then adds direct mechanical load on any nerve root already compromised by disc herniation, osteophyte formation, or foraminal stenosis.

This is why the test reproduces dermatomal symptoms rather than simple local neck pain. The compressed nerve root sends pain, numbness, or paresthesia along its specific distribution in the arm, which tells the examiner both that nerve root involvement is likely and, from the dermatomal pattern, which level is affected.

• C5 nerve root: symptoms into the lateral shoulder and upper arm
• C6 nerve root: symptoms into the thumb and index finger
• C7 nerve root: symptoms into the middle finger
• C8 nerve root: symptoms into the ring and little finger

Indications and contraindications for Spurling’s test

Spurling’s test is indicated whenever a patient presents with neck pain accompanied by unilateral arm symptoms. These presentations warrant assessment:

• Unilateral arm pain, numbness, or tingling with or without neck pain
• Suspected cervical nerve root compression following trauma or degenerative change
• Upper limb weakness or reflex changes with a cervical origin suspected
• Neck pain that radiates below the shoulder in a dermatomal pattern
• Evaluation prior to cervical physiotherapy or chiropractic intervention

Contraindications

Several conditions make Spurling’s test unsafe or clinically inadvisable. Absolute contraindications include:

• Acute cervical fracture or instability: axial compression risks spinal cord injury
• Acute cervical cord compression or myelopathy: the maneuver may worsen neurological status
• Vascular compromise (vertebral artery insufficiency): head rotation poses a risk to vertebrobasilar circulation
• Severe osteoporosis: axial loading may risk pathological fracture
• Recent cervical surgery: structural integrity may be insufficient to tolerate compression

When in doubt, perform a thorough clinical screen for upper cervical instability and vascular risk before proceeding.

How to perform Spurling’s test: Step-by-step procedure

Patient positioning and examiner technique directly affect both the sensitivity of the test and the patient’s comfort. Follow this sequence consistently across assessments.

1. Position the patient seated: the patient sits upright on the examination table, with feet flat on the floor and shoulders relaxed. Ask them to identify their symptomatic side before beginning.
2. Perform a baseline symptom check: ask the patient to rate their current arm symptoms before any head movement. This gives you a baseline to compare against provocation.
3. Extend the patient’s neck: passively guide the patient’s head into cervical extension (tilting backward). This causes the intervertebral disc to bulge posteriorly, narrowing the foramina. Move slowly and observe for any early reproduction of arm symptoms.
4. Add ipsilateral rotation: from extension, rotate the head toward the symptomatic side. The combination of extension and rotation creates maximum foraminal narrowing on the symptomatic side.
5. Apply graduated axial compression: place both hands on top of the patient’s head and apply a gentle, steady downward force, starting at approximately 7 kg of pressure. Increase gradually only as needed to test for symptom reproduction, using this as a guide rather than a fixed clinical value. Do not apply sudden or forceful compression.
6. Observe and record the response: a positive Spurling’s test is defined as reproduction of the patient’s arm pain or paresthesia in a dermatomal distribution. Note the symptom type, severity, and dermatomal level.
7. Release and reassess: slowly release compression and return the head to neutral. Confirm that symptoms subside on release. Persistent symptoms should prompt a clinical reassessment before continuing.

Modifications of Spurling’s test

The technique described above (extension combined with ipsilateral rotation and axial compression) reflects the modern standard used by the APTA and current clinical literature. The original 1944 description by Spurling and Scoville used lateral flexion combined with axial compression, without a cervical extension component; this original version is no longer considered the proper technique.

Two further widely referenced variants appear in the clinical literature. Spurling A uses the compression maneuver described above, then adds a distraction component: after provocation, the examiner applies gentle upward traction to relieve the foraminal load. Relief of symptoms with distraction further supports a compressive nerve root diagnosis. Spurling B omits the distraction component and uses compression alone. Some clinicians also perform the test with the patient supine, which reduces examiner fatigue and may help patients who cannot maintain a seated position comfortably.

Interpreting Spurling’s test results

Result interpretation is the step where clinical errors most commonly occur. The critical distinction is this: only reproduction of radicular arm symptoms constitutes a positive result. Local neck pain, general discomfort, or muscle soreness at the site of compression does not count.

What a positive Spurling’s test means

A positive Spurling’s test indicates likely ipsilateral cervical nerve root compression at the level suggested by the dermatomal distribution of the reproduced symptoms. Given the test’s high specificity, a positive result significantly increases the probability that cervical radiculopathy is present. It warrants confirmatory imaging, typically MRI of the cervical spine, and consideration of electrodiagnostic testing.

The dermatomal level of the reproduced arm symptoms helps localize the affected nerve root. C6 radiculopathy, for example, typically produces symptoms into the thumb and index finger, while C7 radiculopathy typically affects the middle finger. Correlate this with motor and reflex testing to build a clinical picture before referring for imaging.

What a negative Spurling’s test means

A negative Spurling’s test does not rule out cervical radiculopathy. The test’s sensitivity is approximately 30-60%, meaning it misses roughly half of confirmed cases. A negative result should prompt the clinician to consider other cervical spine tests, pursue further investigation if clinical suspicion remains high, or reassess the clinical hypothesis. It is not safe to discharge a patient from nerve root investigation on the basis of a negative Spurling’s test alone.

Spurling test sensitivity, specificity, and diagnostic accuracy

The diagnostic accuracy of Spurling’s test has been studied across multiple prospective trials. The most cited reference is Wainner et al. (2003), who evaluated a cluster of cervical tests against electrodiagnostic confirmation of cervical radiculopathy. The APTA and StatPearls (NCBI) both summarize these findings consistently.

Clinical utility: How reliable is Spurling’s test in practice?

Inter-rater reliability for Spurling’s test is moderate when examiners follow a standardized protocol, but variability increases significantly when technique is inconsistent. The amount of compression applied, the degree of lateral flexion achieved, and the examiner’s ability to distinguish dermatomal arm symptoms from local neck pain all affect whether the test produces a meaningful result. The APTA’s clinical utility assessment notes that Spurling’s test should be interpreted within a cluster of findings rather than in isolation.

Wainner et al. (2003) identified a four-test clinical prediction rule for cervical radiculopathy: Spurling’s test, the upper limb tension test, cervical distraction, and rotation range of motion under 60 degrees to the symptomatic side. When three or four of these tests are positive, the probability of confirmed cervical radiculopathy rises substantially. No single test, including Spurling’s, should drive a diagnosis alone.

What happens after a positive Spurling’s test?

A positive Spurling’s test is a clinical indicator, not a diagnosis. The next steps in management typically follow this pathway:

1. Cervical MRI: the imaging investigation of choice for confirmed or suspected cervical radiculopathy. MRI identifies disc herniation, osteophyte formation, foraminal stenosis, and cord involvement. It also rules out more serious pathology including tumor or infection.
2. Electrodiagnostic testing (EMG/NCS): electromyography and nerve conduction studies confirm nerve root involvement and help localize the affected level. Particularly useful when imaging findings do not clearly correspond to clinical symptoms.
3. Referral: patients with confirmed radiculopathy may be referred to a neurologist, neurosurgeon, or spinal orthopedic surgeon depending on symptom severity and response to conservative treatment.
4. Conservative management: many patients with cervical radiculopathy improve with physiotherapy, manual therapy, activity modification, and pain management. A positive Spurling’s test finding documented in the clinical record supports the indication for a structured treatment program.

Related special tests for cervical spine assessment

Spurling’s test is most useful when interpreted alongside complementary cervical spine tests. Each test probes a different mechanism, and combining findings improves diagnostic confidence.

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Documenting Spurling’s test findings in clinical practice

Accurate documentation of Spurling’s test is not just good practice. It creates the clinical record that supports referral decisions, justifies investigation requests, and protects the clinician if the diagnosis is later disputed. For practitioners following physiotherapy compliance requirements in the UK, contemporaneous and specific clinical notes are a regulatory expectation.

A well-structured Spurling’s test entry in a SOAP note should record: the symptomatic side tested, the degree of lateral flexion and rotation achieved, the amount of compression applied, the patient’s verbal response during the maneuver, the dermatomal distribution of any reproduced symptoms, and whether distraction relieved symptoms if tested. Vague entries like “Spurling’s: positive” give very little clinical or medicolegal value.

Clinicians using structured assessment templates can standardize this documentation across their team. A chiropractic intake form template with pre-built fields for special test findings reduces the risk of incomplete records and ensures consistent data capture across practitioners. Guides on writing safer clinical notes offer additional frameworks for structuring musculoskeletal assessment entries.

Practices looking to reduce documentation burden can use digital intake forms to capture pre-assessment symptom history, which feeds directly into the clinical encounter record.

Pabau’s AI-powered clinical documentation can transcribe and structure examination findings in real time, helping practitioners at a physiotherapy clinic reduce note-writing time without compromising clinical detail.

Structured client records mean that a referring physiotherapist, chiropractor, or orthopedic surgeon can quickly access test findings from any prior appointment.

Spurling’s test in physical therapy and chiropractic workflows

For physiotherapists and chiropractors managing patients with neck and arm symptoms, Spurling’s test fits into a broader assessment framework that includes range of motion testing, neurological screening (power, sensation, reflexes), and functional questionnaires. The test result informs clinical reasoning rather than replacing it.

In a physical therapy practice, documenting Spurling’s test alongside the upper limb tension test and distraction test gives the clinical record a complete picture of nerve root irritability. This cluster approach, as validated by Wainner et al., is more defensible than relying on any single special test.

Practices using physiotherapy clinic management software can template this multi-test cluster into their standard cervical assessment workflow, ensuring nothing is missed across a busy caseload. For chiropractic practices specifically, chiropractic clinic software that supports structured SOAP notes and special test documentation makes audits and peer reviews significantly easier to manage.

Conclusion

Spurling’s test is an efficient, high-specificity clinical tool that belongs in every musculoskeletal assessment toolkit. Its value is in ruling in cervical radiculopathy when used correctly, interpreted carefully, and documented thoroughly. A positive result warrants cervical MRI and a structured management pathway. A negative result does not close the clinical question.

For physiotherapy and chiropractic clinics managing high volumes of cervical assessments, consistent documentation is as important as consistent technique. Pabau’s structured digital forms and SOAP note templates help ensure every Spurling’s test finding is captured with the clinical detail needed to support safe, defensible patient care. Book a demo to see how Pabau supports musculoskeletal clinical workflows.

Continue your research

Need to rule out upper cervical instability first? Alar ligament test explains how to screen for craniovertebral instability before performing provocative cervical maneuvers.

Could thoracic outlet syndrome be mimicking radiculopathy? Hand elevation test helps differentiate vascular and neurogenic thoracic outlet symptoms from nerve root compression.

Want the lumbar equivalent of Spurling’s test? Bragard’s test confirms sciatic nerve tension in suspected lumbar radiculopathy.

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