Hip quadrant test (scour test): how to perform and interpret

The hip quadrant test, also called the hip scour test, is a passive provocation test that screens for intra-articular hip pathology. You apply axial compression through the femur while sweeping the flexed hip from flexion-adduction to flexion-abduction.

The test is positive only when it reproduces the patient’s own groin or anterior hip pain. Reported sensitivity is about 75% and specificity about 43%, so a positive result raises suspicion without confirming a diagnosis.

A clinical review of hip examination makes the same point: no single hip special test is both highly sensitive and highly specific. Use the quadrant test inside a cluster with FABER, FADIR, and the log roll before you refer for imaging.

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Key takeaways

The hip quadrant test (also called the hip scour test) is a passive compression-and-arc test used to screen for intra-articular hip pathology.

A positive result is reproduction of concordant groin or anterior hip pain during the arc movement, not just crepitus or discomfort.

Published data suggest moderate sensitivity (around 75%) and limited specificity (around 43%), so use it as part of a test cluster.

Where the pain appears in the arc hints at the structure involved, so record the arc position every time.

Practice management software like Pabau lets physical therapy practices record arc position, pain character, and concordance the same way for every practitioner.

What the hip quadrant test is and why it matters

The hip quadrant test is a passive orthopedic special test. The clinician holds a sustained axial compression force through the femur while moving the hip from flexion-adduction to flexion-abduction. That load presses the femoral head against the acetabular cartilage and labrum across the arc. It should provoke pain only if intra-articular pathology is present.

It belongs to the same family as FABER and FADIR. Those tests load one static end-range position, while the quadrant test holds compression through the whole arc. That’s why it covers more of the joint surface in a single movement than most static provocation tests.

Students often trip over the two names. “Hip quadrant test” refers to the quadrant of motion the hip moves through. “Hip scour test” (or scouring test) describes the femoral head scouring across the acetabular cartilage under compression. Both terms appear in peer-reviewed literature, and this guide uses them interchangeably.

Anatomy that makes the hip quadrant test work

The acetabulofemoral joint is a ball-and-socket joint where the femoral head sits in the acetabular cup, ringed by the labrum. The labrum is fibrocartilage that deepens the socket, adds stability, and spreads load across the joint surface. When it tears, the torn tissue can get trapped between the femoral head and acetabulum. The result is a sharp, localized pain, unlike the diffuse ache of a muscle problem.

Femoroacetabular impingement (FAI) changes the joint’s geometry. In cam-type FAI, a non-spherical femoral head jams against the acetabular rim at the extremes of flexion-internal rotation. In pincer-type FAI, the acetabular rim overcovers the femoral head. Both mechanisms make arc movements under compression painful, which is exactly the stimulus this test applies.

Osteoarthritis behaves differently. Cartilage loss narrows the joint space and stiffens the capsule, so the whole arc becomes uncomfortable instead of one focal point.

Clinical indications: when to use the hip quadrant test

The hip quadrant test is indicated whenever intra-articular hip pathology is in the differential. These presentations should put it in your examination battery.

• Groin pain or anterior hip pain of unclear origin, particularly in active adults aged 20 to 50
• Suspected acetabular labral tear, often reported as a sharp, catching pain with hip flexion and rotation
• Suspected femoroacetabular impingement (FAI), especially in patients with restricted hip internal rotation
• Hip osteoarthritis screening in older adults with progressive, weight-bearing groin pain and limited range of motion
• Suspected loose bodies or osteochondral defects, where crepitus accompanies pain during arc movement
• Post-surgical hip assessment following arthroscopy, where the clinician needs to assess residual intra-articular irritability
• Unexplained hip pain in athletes, particularly in sports requiring deep hip flexion (soccer, gymnastics, martial arts)

Skip the test when you suspect acute joint inflammation, fracture, or severe osteoporosis. The compressive force could worsen symptoms or cause harm.

How to perform the hip quadrant test: step-by-step procedure

Small changes in hand placement, compression force, or movement arc change what the test loads and whether the result is valid. Follow these steps precisely.

Patient positioning and clinician setup

Position the patient supine on the examination table with both hips and knees in a relaxed, extended position. The clinician stands on the side being tested, facing the patient’s head at roughly a 45-degree angle. The table height should allow the clinician to generate a downward compressive force through straight arms without leaning awkwardly.

1. Passively flex the patient’s hip and knee to approximately 90 degrees. The knee should point toward the ceiling with the foot hanging freely.
2. Place one hand cupped over the patient’s knee, with your palm aligned along the distal femur. This hand drives the axial compression and guides direction of movement.
3. Place the other hand on the distal tibia or around the ankle. This hand stabilizes the lower limb and assists in controlling the arc of movement.
4. Before applying compression, ensure the patient is relaxed and the hip is not guarded. Tension in the hip flexors will mask a true positive response.

The scouring arc movement

The scouring arc is what distinguishes this test from static provocations like FABER. The clinician maintains a constant axial compression force through the femur throughout the entire movement. That loads the joint surfaces as the femoral head rotates across the acetabular cartilage.

1. Apply a firm, sustained axial compression force through the knee, directed along the line of the femur toward the acetabulum. This force must be maintained throughout the entire arc.
2. Begin in hip flexion with slight adduction (moving the knee across the midline). This loads the anterior-superior acetabular rim, the area most commonly affected by labral tears.
3. Slowly and continuously arc the hip from flexion-adduction through to flexion-abduction, keeping the compression steady. The movement should take approximately 5 to 8 seconds across the full arc.
4. Throughout the arc, the hip naturally moves through internal rotation during the adduction phase and external rotation during the abduction phase. Allow this to happen passively rather than forcing additional rotation.
5. Note the point in the arc at which any pain is provoked, the character of that pain, and whether it reproduces the patient’s concordant complaint.

The arc position where pain starts is a clue in itself, as the map below shows.

Recording that position at every visit gives you a reproducible baseline. Physiotherapy practice management software keeps the note in the same format across practitioners and repeat assessments.

Interpreting the hip quadrant test: what a positive result means

A positive hip quadrant test is defined as reproduction of the patient’s concordant groin or anterior hip pain during the arc movement. Crepitus alone, a general sense of tightness, or discomfort that the patient does not recognize as their presenting complaint does not constitute a positive result.

Positive hip quadrant test: differential diagnoses by finding

The arc position where pain is provoked, and the character of that pain, offers diagnostic clues. The table below maps findings to their most likely differential diagnoses.

Does a negative hip quadrant test rule out pathology?

No. A negative hip quadrant test does not rule out labral tear or FAI. Its moderate sensitivity means false negatives happen. They’re most likely with early labral tears, where the torn tissue isn’t yet trapped consistently during the arc. High pain tolerance can also hide low-level concordant discomfort.

A negative result reduces the probability of intra-articular pathology. Always interpret it alongside other special tests (FABER, FADIR, log roll) and the patient’s history. When clinical suspicion remains high after a negative result, MRI arthrography remains the gold standard for labral visualization.

Diagnostic accuracy: sensitivity, specificity, and clinical evidence

Published data for the hip quadrant test show moderate sensitivity and limited specificity. Narvani and colleagues reported sensitivity of approximately 75% and specificity of approximately 43% for detecting acetabular labral tears in athletes with groin pain. Physiopedia’s hip quadrant test entry summarizes the same figures.

In practice, the test catches roughly three in four patients who have the pathology, which is acceptable for a screen. It also flags a large share of patients who don’t.

The Journal of Orthopaedic and Sports Physical Therapy (JOSPT) has published several systematic reviews on hip special test accuracy. Their consistent finding is that no single hip special test achieves clinically useful likelihood ratios on its own.

The hip quadrant test performs best in a cluster, where two or three positive tests raise post-test probability substantially. A positive quadrant test plus a positive FADIR and restricted internal rotation makes a much stronger case than any one finding alone.

Hip quadrant test vs. other hip special tests

Choosing the right test, or the right combination, requires understanding how each special test loads the hip differently. This comparison draws on published sensitivity and specificity ranges from Physiopedia’s hip special tests reference and the JOSPT systematic review literature. In sports medicine practices, FADIR pairs well with the scour test for FAI screening.

Hip quadrant test vs. lumbar quadrant test: key differences

The lumbar quadrant test is a different examination technique that targets lumbar facet joint irritation and spinal stenosis. Confusing the two is a common student error. Both can produce pain in the lower back or buttock region, and both use the word “quadrant.” Their anatomy, technique, and interpretation are entirely distinct.

When a patient presents with both groin pain and low back pain, both tests may be warranted in sequence. Always assess the lumbar spine and hip independently, because hip pathology and lumbar pathology frequently coexist and can present with overlapping symptom patterns.

Common errors when performing the hip quadrant test

Technique errors cause many of the false negatives and false positives that get blamed on the test. Watch for these six in student placements and peer supervision.

• Insufficient axial compression. This is the most common error. With too light a load, the femoral head never presses firmly into the acetabular cartilage. The test turns into a range-of-motion screen and provokes very little. Press firmly and consistently.
• Releasing compression during the arc. The compressive force must remain constant throughout the full arc. Easing off at any point unloads the target tissue. That can produce a false negative at the exact spot where the pathology sits.
• Stopping short of end range. Stopping the arc early to spare the patient discomfort means you never load the part of the joint surface where the lesion may sit. Monitor their comfort, but carry a firm technique through the available arc.
• Counting crepitus as a positive result. Crepitus during the arc is common in asymptomatic hips and does not constitute a positive test. The positive criterion is reproduction of concordant pain, not noise or sensation alone.
• Poor patient relaxation. An apprehensive or guarded patient will co-contract hip muscles, reducing the effective load delivered to the joint. Take time to ensure full relaxation before beginning the arc. A few passive hip circles without compression can help.
• Incorrect hand position on the knee. If your hand drifts to the lateral knee instead of cupping the distal femur, the compressive vector changes. The load then no longer travels axially through the femoral neck toward the acetabulum.

Clinical integration: using the hip quadrant test in practice

The hip quadrant test is most useful inside a structured examination sequence. For suspected intra-articular pathology, run the hip assessment in this order:

1. History and subjective examination
2. Active range-of-motion assessment
3. Passive range of motion with overpressure
4. The special test battery, where the quadrant test sits alongside FABER, FADIR, and the log roll

Our hip examination guide walks through each stage of that sequence in more detail.

When two or more tests in the cluster are positive, the post-test probability of intra-articular pathology rises. According to the American Physical Therapy Association (APTA), cluster-based examination is recommended over single-test reliance in hip assessment. At that point, refer for MRI arthrography to confirm labral pathology or FAI before choosing conservative or surgical management.

After hip arthroscopy, you can reintroduce the test at suitable recovery stages to monitor residual intra-articular irritability. Before a return-to-running protocol starts loading the hip dynamically, it gives you one objective marker of joint tolerance.

Documentation matters as much as technique. Record the arc position of pain provocation, whether the pain was concordant, the compression applied, and any painless crepitus. Those details turn a vague “hip special tests performed” entry into a note the next clinician can act on.

How Pabau keeps hip assessment findings consistent

In many physical therapy practices, special test results end up as free text. One clinician writes “scour positive,” another writes “groin pain on quadrant,” and a third skips the arc position entirely. Comparing results across visits then means reading every note line by line.

Practice management software like Pabau replaces that with a structured assessment form. You can build a hip template that prompts for arc position, pain character, concordance, and crepitus. Every practitioner then records the same fields, and Pabau’s software for physical therapists stores each completed form in the patient record.

The payoff shows up at reassessment. After arthroscopy or a rehab block, you can open the patient record and see how the quadrant test result changed from visit to visit. That trajectory supports the decision to progress loading, refer for imaging, or discharge.

Record every hip assessment the same way

Structured assessment forms and patient records help your team capture special test findings consistently and track them across visits.

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Conclusion

Treat the hip quadrant test as a screen with a useful map attached. A negative result lowers suspicion without clearing the hip. A positive one justifies the rest of the cluster and, if that agrees, an MRI arthrogram.

The quality of the result depends on your hands. Hold compression through the whole arc, count only concordant pain, and write down where in the arc it appeared. That arc position turns a moderate test into a useful pointer toward the labrum, impingement, or arthritis.

If your team records special tests in free text today, standardizing the note is the quickest win. Book a demo to see how Pabau’s assessment forms keep hip exam findings consistent across your practitioners.

Continue your research

Managing a physical therapy practice? Physical therapy EMR covers how Pabau supports documentation, scheduling, and patient records for PT practices.

Assessing the whole hip? Hip examination covers how to structure a complete hip assessment.

Patient reports a clicking or snapping hip? Snapping hip test explains how to assess that complaint.

Checking femoral anteversion? Craig’s test template gives you a ready-made form for recording the result.

Working with sports medicine or rehabilitation patients? Sports medicine software shows how Pabau handles multi-practitioner sports and rehabilitation workflows.

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