Neer Test – Orthopedic Shoulder Examination

The Neer test is a physical examination technique used to assess for subacromial impingement — compression of the rotator cuff tendons and subacromial bursa beneath the coracoacromial arch. It is one of the most widely taught shoulder tests in physical therapy and orthopedic medicine. The test is performed by passively flexing the patient’s arm in internal rotation, compressing the subacromial contents against the anterior acromion. A positive result reproduces the patient’s familiar shoulder pain.

Quick Reference

Also known as	Neer impingement test, Neer sign
Structure tested	Supraspinatus tendon, subacromial bursa, long head of biceps
Patient position	Seated or standing, arm at side
Positive sign	Reproduction of familiar anterior or lateral shoulder pain
Sensitivity	~59–72%
Specificity	Low — best used in combination with other tests

What the Neer Test Assesses

The Neer test is designed to reproduce symptoms of subacromial impingement — also called Subacromial Pain Syndrome (SAPS) — by mechanically compressing the structures that pass through the subacromial space. When the arm is passively flexed in internal rotation, the greater tuberosity of the humerus is driven toward the anterior inferior acromion and coracoacromial ligament, compressing the tissues beneath.

The primary structures being stressed are:

• Supraspinatus tendon — most commonly implicated in impingement and rotator cuff pathology
• Subacromial bursa — inflamed bursae are a frequent source of impingement-related pain
• Long head of the biceps tendon — passes through the bicipital groove and can be involved in subacromial pathology
• Infraspinatus tendon — less commonly, may be involved depending on rotator cuff pathology

Anatomy: The Subacromial Space

The subacromial space is the narrow corridor between the head of the humerus below and the coracoacromial arch above — formed by the acromion, coracoacromial ligament, and acromioclavicular joint. This space is normally about 7–14 mm wide and contains the supraspinatus tendon, subacromial bursa, and the long head of the biceps tendon.

When the arm is elevated and internally rotated, this space narrows further. In patients with subacromial pathology — whether from tendon degeneration, bursal thickening, bony changes, or poor scapular control — this narrowing causes mechanical compression and pain. The Neer test replicates this mechanism under controlled, passive conditions.

How to Perform the Neer Test

Starting Position

The patient is seated or standing with the arm relaxed at their side and the elbow fully extended. The examiner stands behind or to the side of the patient.

Procedure

1. Stabilize the patient’s scapula with one hand to prevent scapular elevation during the movement.
2. Internally rotate the patient’s arm (thumb pointing downward, forearm pronated).
3. With the elbow extended, passively elevate the arm through forward flexion in the scapular plane.
4. Continue elevation to end range or until pain is provoked.
5. Ask the patient whether the movement reproduces their familiar shoulder pain.

Original vs. Modified Technique

Neer’s original 1972 description did not specifically require internal rotation as a precondition — the key element was passive forward flexion with scapular stabilization. Many clinicians and educators have since incorporated forearm pronation and internal rotation as part of the setup, reasoning that this position more reliably drives the greater tuberosity beneath the coracoacromial arch. Both variations are widely used; consistency within a clinical setting matters more than strict adherence to one version.

Positive Sign and Interpretation

The Neer test is considered positive when passive forward flexion reproduces the patient’s familiar anterior or anterolateral shoulder pain. The key word is familiar — the provoked pain should match the patient’s chief complaint, not simply any discomfort from end-range stretching.

Pain localized to the anterior or lateral shoulder during the arc is more diagnostically meaningful than vague global shoulder discomfort. End-range stiffness or posterior capsule tightness are not positive findings.

Sensitivity and Specificity

The Neer test’s diagnostic accuracy has been studied extensively, with results varying considerably based on reference standard, population, and the definition of a positive finding used.

Metric	Range Across Studies
Sensitivity	~59–79%
Specificity	Low to moderate (wide variance — as low as 6% in some meta-analyses)
Positive Likelihood Ratio	~1.5–2.0
Negative Likelihood Ratio	~0.35–0.50

Values reflect ranges from published systematic reviews including Hegedus et al. (2012) and Gismervik et al. (2017). Reference standards and population characteristics vary across studies.

The practical takeaway: the Neer test has reasonable sensitivity but poor specificity. It casts a wide net — it is fairly good at catching patients who do have subacromial pathology, but it also produces many false positives. A negative Neer test modestly reduces the likelihood of subacromial impingement; a positive result alone is not sufficient to confirm the diagnosis. This is why the Neer test is almost always used alongside the Hawkins-Kennedy test, the Painful Arc sign, and the Empty Can test rather than in isolation.

Clinical Considerations

Limitations

• The test has low specificity — a positive result does not differentiate between supraspinatus tendinopathy, subacromial bursitis, biceps tendon involvement, or AC joint pathology.
• Patients with limited forward flexion — from adhesive capsulitis, pain inhibition, or post-surgical restriction — may not be able to reach the range at which impingement is provoked, producing a false negative.
• The concept of mechanical subacromial impingement as a discrete diagnosis has been debated in recent literature. Some systematic reviews question whether the classic impingement model fully explains subacromial pain syndrome, affecting how much diagnostic weight single-test findings should carry.
• Scapular stabilization quality during testing affects reliability — inconsistent stabilization allows compensatory scapular elevation, altering the mechanical load on the subacromial contents.

When to Use It

The Neer test is appropriate in the evaluation of patients presenting with:

• Anterior or anterolateral shoulder pain, particularly with overhead activity
• Pain arc between approximately 70–120° of shoulder elevation
• Suspected rotator cuff tendinopathy or subacromial bursitis
• Night pain or difficulty sleeping on the affected shoulder
• Gradual onset shoulder pain in active adults, overhead athletes, or workers with repetitive overhead demands

The Neer test is most useful as part of a cluster approach. Research supports combining it with the Hawkins-Kennedy test and the Painful Arc sign — when two or three of these are positive together, diagnostic confidence for subacromial pathology increases meaningfully.

History and Eponym

The Neer test is named after Charles S. Neer II (1917–2011), an American orthopedic surgeon at Columbia University who is widely regarded as a pioneer of modern shoulder surgery. Neer introduced the concept of subacromial impingement syndrome in the 1970s after observing consistent patterns of supraspinatus degeneration during shoulder operations and recognizing that mechanical compression beneath the coracoacromial arch was a central mechanism. He described the impingement sign formally in a 1972 paper and expanded the concept in subsequent publications throughout the 1970s and 1980s. Neer also developed the Neer impingement injection test — a diagnostic block of the subacromial space with lidocaine — as a companion to the physical sign.

Video Demonstration

Related Shoulder Tests

• Hawkins-Kennedy Test — passive shoulder flexion to 90° with internal rotation; also tests for subacromial impingement and is frequently paired with the Neer test
• Painful Arc Test — active shoulder abduction; pain between 60–120° is a positive sign for subacromial pathology
• Empty Can Test — resisted shoulder abduction in the scapular plane with internal rotation; assesses supraspinatus integrity
• Gerber’s Lift-Off Test — assesses subscapularis function
• Speed’s Test — assesses long head of the biceps tendon

Frequently Asked Questions

What does a positive Neer test mean?

A positive Neer test — reproduction of the patient’s familiar anterior or anterolateral shoulder pain during passive forward flexion — suggests subacromial impingement, most commonly involving the supraspinatus tendon or subacromial bursa. However, because the test has low specificity, a positive finding alone is not sufficient to confirm the diagnosis. It should be interpreted alongside other shoulder tests, clinical history, and imaging when indicated.

How accurate is the Neer test?

The Neer test has moderate sensitivity (approximately 59–79%) and poor specificity. This means it is reasonably good at detecting subacromial pathology when present, but it also produces frequent false positives. For this reason, it is most useful as a screening tool or as part of a cluster of shoulder tests rather than as a standalone diagnostic.

What is the difference between the Neer test and the Hawkins-Kennedy test?

Both tests assess for subacromial impingement but use different mechanisms. The Neer test compresses the subacromial contents by passively flexing the arm forward in internal rotation, driving the greater tuberosity toward the anterior acromion. The Hawkins-Kennedy test flexes the shoulder and elbow to 90° and then forcibly internally rotates the arm, driving the supraspinatus tendon beneath the coracoacromial ligament. The two tests are often performed together — a positive result on both increases diagnostic confidence for subacromial pathology.

Can the Neer test be positive without a rotator cuff tear?

Yes. The Neer test is positive in subacromial bursitis, rotator cuff tendinopathy, and rotator cuff tears — it does not distinguish between them. It can also produce false positives in patients with AC joint pathology, glenohumeral instability, or simply limited range of motion. A positive Neer test confirms pain is provoked by subacromial compression; it does not specify the structure involved or the severity of pathology.

What is the Neer impingement injection test?

The Neer impingement injection test — also called the Neer sign — is a companion diagnostic procedure in which 10 mL of lidocaine is injected into the subacromial space. If the injection eliminates or significantly reduces pain during repeat Neer testing, the result is considered positive for subacromial impingement. The injection test improves specificity compared to the physical sign alone and is used in clinical settings when the diagnosis remains uncertain after examination.

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