Bragard’s test

Key Takeaways

Bragard's test is a neurological examination that differentiates sciatic nerve irritation from hip or hamstring pathology using ankle dorsiflexion during the straight leg raise position.

The test is positive when ankle dorsiflexion reproduces radicular symptoms (pain radiating down the leg), indicating sciatic nerve root irritation.

Modified Bragard's test is used when the straight leg raise is negative at about 70° hip flexion: the ankle is dorsiflexed at that same raised position to check for radicular symptoms below the knee.

Pabau's digital forms and SOAP note templates enable clinicians to document Bragard's test findings directly within the patient record for easy audit and continuity of care.

What is Bragard’s test?

Bragard’s test, also called Bragard’s sign or Braggard’s test, is a clinical orthopedic examination used to assess lumbar radiculopathy and sciatic nerve involvement. The test builds on the straight leg raise (SLR) by adding a specific ankle dorsiflexion maneuver to increase neural tension and sensitize the examination to nerve root pathology.

The primary clinical purpose of Bragard’s test is to differentiate sciatic nerve irritation from hip joint pathology or hamstring tightness-conditions that may also produce positive SLR findings but do not improve with ankle dorsiflexion. This distinction is essential for accurate diagnosis and treatment planning.

AI-powered documentation tools can help capture examination findings quickly, but clinicians must understand the underlying anatomy and technique before delegating any note-writing to automation.

• Also known as: Bragard’s sign, Braggard’s test, ankle dorsiflexion test
• Primary indication: Assessment of lumbar radiculopathy and sciatic nerve root irritation
• Target pathology: Lumbar disc herniation, nerve root compression, dural tension
• Differentiation purpose: Distinguishes neural pain from non-neural (hip, hamstring) causes

Anatomy behind Bragard’s test

Understanding the neuroanatomy is crucial for correctly performing and interpreting Bragard’s test. The sciatic nerve (L4-S3 nerve roots) travels from the lumbar and sacral spine, through the pelvis, and down the posterior leg. A lumbar disc herniation or nerve root compression at the intervertebral foramen can irritate or inflame the nerve root, causing pain, numbness, or tingling in the distribution of that nerve.

The straight leg raise passively stretches the sciatic nerve and surrounding dural sac. When the leg is raised to the point of pain and then slightly lowered below the pain threshold, the neural tension is reduced.

Applying ankle dorsiflexion at this lower position increases neural tension again. If the patient experiences reproduction of their radicular symptoms, shooting pain down the leg, the nerve root is likely irritated.

Clinicians managing physical therapy practices use specialized clinical management systems to link anatomical findings like Bragard’s test results to treatment plans and outcomes tracking, improving the continuity of care across sessions.

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

Performing Bragard’s test accurately requires precise positioning and attention to the patient’s responses. Follow these numbered steps:

1. Patient positioning: Patient lies supine (flat on their back) with legs extended. Ensure the buttocks and lower back are supported by the examination table.
2. Straight leg raise: Keeping the patient’s knee fully extended (straight), slowly raise their leg by flexing at the hip until they report pain. Note the angle or point at which pain first appears.
3. Determine pain threshold: Once the patient indicates pain, lower the leg slightly-approximately 10-15 degrees-until pain subsides. This position is “below the pain threshold.”
4. Apply ankle dorsiflexion: While holding the leg at this lower position, dorsiflex the patient’s ankle (pull the toes toward the shin). Watch for facial grimacing or verbal report of pain reproduction.
5. Record findings: Document whether ankle dorsiflexion reproduced the patient’s original radicular symptoms (positive test) or had no effect (negative test).

The key distinction from a standard SLR is that Bragard’s test actively reproduces symptoms at a lower leg angle when ankle dorsiflexion is added-demonstrating that the pain is neural in origin rather than mechanical (hip or hamstring).

Modified Bragard test

The modified Bragard test is applied when the straight leg raise is negative at around 70 degrees of hip flexion. Instead of lowering the leg as in the standard test, the clinician holds it at that raised position and firmly dorsiflexes the ankle, watching for radicular symptoms below the knee.

Use the modified version when the SLR is negative at approximately 70 degrees but clinical suspicion for radiculopathy remains high. Because chiropractors, physical therapists, and sports medicine clinicians all rely on this test, noting which version was performed matters for continuity between visits. Practice management software built for chiropractic care can flag the test variant directly in the patient record for future reference.

• Standard Bragard: Leg lowered below the pain threshold, then ankle dorsiflexion applied
• Modified Bragard: Applied when the SLR is negative at about 70° hip flexion; the ankle is dorsiflexed at that same raised position (leg not lowered) to check for radicular symptoms below the knee
• Published research shows the modified version has higher sensitivity than the SLR for detecting lumbar radiculopathy, using electrodiagnostic testing (not MRI) as the reference standard

Interpreting results: What does a positive Bragard’s sign mean?

Positive test: Ankle dorsiflexion reproduces the patient’s radicular pain (sharp, shooting pain down the leg in the distribution of a specific nerve root). A positive Bragard’s sign suggests sciatic nerve root irritation, likely due to lumbar disc herniation or nerve root compression.

Negative test: Ankle dorsiflexion does not reproduce pain. The leg raise may still cause pain (positive SLR), but the character and location of pain differ from the patient’s typical radicular symptoms. A negative Bragard’s test suggests the pain is non-neural in origin (hip joint pathology, hamstring tightness, muscular pain).

Documenting clinical decision-making after interpreting the test helps justify the next steps in your diagnostic and treatment pathway. Record not only the test result but also the patient’s specific response (e.g., “reproduction of left-sided sciatic pain at 45° hip flexion with ankle dorsiflexion”).

Sensitivity, specificity, and diagnostic accuracy

A 2018 study of patients with suspected lumbar disc herniation compared the diagnostic accuracy of the straight leg raise and the modified Bragard test against electrodiagnostic testing (EMG and nerve conduction studies) as the reference standard:

The modified Bragard test showed higher sensitivity and specificity than the SLR alone, with a positive predictive value of 73.15%, a negative predictive value of 63.16%, a positive likelihood ratio of 2.13, and a negative likelihood ratio of 0.46. The study did not report separate figures for the standard, unmodified Bragard test. A single special test should never be used in isolation, so combine it with clinical history, neurological examination, and imaging results for robust diagnostic accuracy.

Bragard’s test vs straight leg raise vs Lasègue’s sign

Three related tests are frequently confused in clinical practice. Understanding the differences helps you select the correct test for your patient’s presentation.

Physical therapy EMR software that benefits from structured templates listing all three tests reduces the risk of missed assessments and improves the quality of clinical documentation.

Related orthopedic special tests for lumbar assessment

Bragard’s test is most useful when combined with other lumbar and neurological special tests. Common companions include:

• Slump test: Combines spinal flexion with knee extension to assess neural tension; more sensitive than SLR in some patient populations
• Femoral nerve tension test: Assesses L2-L4 nerve root irritation (opposite leg from Bragard’s)
• Prone knee bend: Alternative for L3-L4 assessment without full hip flexion
• Palpation of sciatic nerve: Direct palpation in the buttock to identify focal tenderness
• Neurological testing: Strength, reflexes, and dermatomal sensation in the lower limb

Special tests exist for nearly every joint and region, not just the lumbar spine. The alar ligament test checks upper cervical instability, while the hand elevation test screens for thoracic outlet syndrome, both useful additions to a full musculoskeletal work-up alongside Bragard’s test.

Sports medicine clinicians treating athletes may later pair a positive finding with functional assessments such as the Illinois agility test before clearing a full return to activity.

Practices that document special tests systematically build patient trust and better outcomes, since patients can see the thoroughness of their assessment. That same trust pairs well with strategies to reduce patient no-shows.

Documenting Bragard’s test in clinical notes

Proper documentation is essential for clinical continuity, audit compliance, and medicolegal protection. When recording Bragard’s test findings, include:

• Test version performed: Standard or modified (note if modified variant was used)
• Patient position and leg tested: Right vs left side
• Angle at pain threshold: Approximate degrees of hip flexion when pain begins (e.g., “positive at 50° hip flexion”)
• Character of pain: Radicular (sharp, shooting down leg) vs localized low back pain
• Test result: Positive (ankle dorsiflexion reproduced symptoms) or negative
• Comparison notes: How this test compares to other special tests performed (SLR, slump test, etc.)
• Clinical impression: Suspected nerve root level or clinical significance for your diagnosis

Use customizable digital forms in your practice management software to create a standardized Bragard’s test documentation checklist, reducing transcription errors and ensuring consistency across clinicians and sessions.

Download your free Bragard’s test

This template is designed for clinicians who perform regular orthopedic assessments. It captures all the key elements needed for accurate documentation and integrates seamlessly with patient record systems that support special test documentation and clinical note generation.

Why standardized documentation matters

Standardized documentation of Bragard’s test protects both clinician and patient. Clear records support clinical decision-making in follow-up sessions, demonstrate compliance with professional standards (HCPC in the UK, APTA guidelines in the US), and provide an audit trail if any clinical outcome requires review.

Physiotherapy compliance standards require that special test findings be documented, retained, and accessible for at least six years. Using a structured template ensures nothing is missed.

Ready to simplify your clinical documentation? Book a demo to see how Pabau’s digital forms and SOAP note templates can streamline Bragard’s test recording and improve your practice’s efficiency.

Conclusion

Bragard’s test is an essential special test for differentiating sciatic nerve root irritation from non-neural causes of lower back and leg pain. The modified version offers higher sensitivity for detecting lumbar radiculopathy than the SLR alone.

Proper technique, accurate interpretation, and thorough documentation ensure the test serves its clinical purpose and protects professional accountability. Whether you perform this test daily or occasionally, a standardized documentation template reduces errors, improves consistency, and supports better patient outcomes.

Frequently asked questions