Hornblower’s Sign assesses whether the client can externally rotate the shoulder when the arm is elevated or abducted. A positive finding may include inability to hold external rotation, dropping into internal rotation, weakness or familiar posterior shoulder symptoms. Current shoulder examination evidence supports interpreting rotator cuff tests cautiously because single tests rarely identify one exact structure on their own.
A client reports weakness when the arm is lifted, difficulty controlling the hand behind the head or poor external rotation strength in overhead positions. Standard external rotation testing at the side may not fully reveal the deficit.
Hornblower’s Sign can help assess posterior rotator cuff performance in a more abducted shoulder position. The result should be documented as weakness, lag, inability to hold position, pain or compensation rather than as a diagnosis.
Test name: Hornblower’s Sign
Body region: Shoulder, posterior rotator cuff, teres minor and infraspinatus region
Purpose: Assess external rotation control and strength in an elevated or abducted shoulder position
Positive finding: Inability to maintain external rotation, arm falling into internal rotation, marked weakness or familiar symptoms
Negative finding: Able to maintain position without meaningful weakness or symptoms
Best used with: Infraspinatus Test, External Rotation Lag Sign, Drop Sign, shoulder ROM, rotator cuff strength testing and functional overhead assessment
Key limitation: It does not diagnose a teres minor tear or massive rotator cuff tear on its own
Hornblower’s Sign is a posterior rotator cuff test. The shoulder is positioned in elevation or abduction, and the client attempts to maintain or produce external rotation.
A positive result is typically a loss of external rotation control or inability to hold the position.
The test is used when posterior rotator cuff involvement, especially teres minor or infraspinatus-related weakness, is part of the clinical reasoning.
It may help assess clients with overhead weakness, external rotation deficits, rotator cuff-related symptoms or difficulty controlling the arm in elevated positions.
The test assesses external rotation control in an abducted or elevated shoulder position. It does not isolate teres minor perfectly and does not confirm a tear on its own.
Weakness may also reflect pain inhibition, infraspinatus involvement, deltoid contribution, neurological weakness, stiffness, fatigue or poor motor control.
This test may be useful for clients with posterior shoulder weakness, overhead weakness, suspected posterior rotator cuff involvement, loss of external rotation control or difficulty with overhead sport and work tasks.
Use when the client can tolerate the shoulder elevation or abduction position and posterior rotator cuff assessment is relevant.
Use caution with acute trauma, suspected fracture, severe pain, recent surgery, instability symptoms, inability to lift the arm or neurological symptoms.
Chair or standing space
Pain and strength scale
Measurz recording workflow
Optional handheld dynamometer for related external rotation strength testing
Optional comparison side notes
Position the client sitting or standing.
Place the shoulder in the selected elevated or abducted position, commonly around 90 degrees depending on the protocol.
Stand beside or behind the tested shoulder.
Support the elbow or arm as needed while observing external rotation control.
Monitor trunk lean, shoulder hiking and scapular compensation.
Ask the client to externally rotate or maintain external rotation against gravity or gentle resistance.
Ask the client to report pain, weakness, fatigue, apprehension or familiar symptoms.
A positive finding is inability to maintain external rotation, arm falling into internal rotation, marked weakness or familiar symptoms.
A negative finding is the ability to maintain position without meaningful weakness or symptoms.
Stop if pain increases sharply, the arm cannot be controlled, apprehension occurs or symptoms are not tolerated.
Support the arm if the client cannot hold it. Record lag, weakness and pain separately.
A positive Hornblower’s Sign may increase suspicion of posterior rotator cuff involvement, especially when there is clear external rotation weakness or lag compared with the other side.
A negative test does not exclude posterior rotator cuff pathology. Smaller tears, pain-inhibited weakness or task-specific deficits may not be detected.
Interpretation is stronger when combined with external rotation strength testing, infraspinatus testing, lag signs, shoulder ROM, functional overhead tasks and history.
Hornblower’s Sign is used to assess possible teres minor or posterior rotator cuff involvement. A positive result may increase suspicion of a larger posterosuperior rotator cuff issue, especially when the client has difficulty maintaining external rotation. However, it should be used alongside strength testing, range of motion, client history, and other rotator cuff assessments.
Reliability depends on shoulder angle, external rotation position, resistance level, symptom criteria, comparison side and whether the finding is recorded as pain, weakness or lag.
Current rotator cuff-related shoulder assessment commentary warns against overreliance on special tests as structure-specific tools.
Common errors include testing at an inconsistent shoulder angle, not supporting the arm, recording pain and weakness as the same finding, ignoring compensation and interpreting the test as diagnostic of one tendon.
Limitations include poor isolation of teres minor, infraspinatus contribution, pain inhibition, neurological weakness, stiffness, fatigue and limited current exact diagnostic accuracy evidence.
Use Hornblower’s Sign to document external rotation control in an elevated shoulder position. It is most useful when paired with external rotation strength testing, infraspinatus testing, lag signs and functional overhead assessment.
Record test name, side tested, result, pain score, symptom location, shoulder angle, external rotation position, weakness, lag, ability to hold position, resistance level, compensation, comparison side, confidence in result and reason for stopping.
Add related findings such as Infraspinatus Test, External Rotation Lag Sign, Drop Sign, shoulder ROM, external rotation strength and overhead task symptoms.
Infraspinatus Test
External Rotation Lag Sign
Drop Sign
Empty Can Test
Full Can Test
Shoulder External Rotation Test
Shoulder Strength Testing
Painful Arc
It assesses external rotation control and strength in an elevated or abducted shoulder position.
A positive finding is inability to maintain external rotation, arm falling inward, marked weakness or familiar symptoms.
No. It may increase suspicion but does not diagnose a tear on its own.
Record side, shoulder angle, external rotation control, lag, pain, weakness and compensation.
Combine it with external rotation strength testing, Infraspinatus Test, lag signs, ROM and functional overhead tasks.
Hornblower’s Sign assesses external rotation control in an elevated position.
Lag, weakness and pain should be recorded separately.
It does not isolate teres minor or diagnose a tear on its own.
Use it with other posterior rotator cuff findings.
Measurz should capture shoulder angle, control, symptoms and comparison side.
Powell, J. K., & Lewis, J. S. (2020). It is time to put special tests for rotator cuff-related shoulder pain out to pasture. Journal of Orthopaedic & Sports Physical Therapy, 50(5), 222–225.
Walch, G., Boulahia, A., Calderone, S., & Robinson, A. H. N. (1998). The “dropping” and “hornblower’s” signs in evaluation of rotator-cuff tears. The Journal of Bone and Joint Surgery. British Volume, 80-B(4), 624–628.
Zhang, A. L., et al. (2024). Evidence-based approach to the shoulder examination for subacromial bursitis and rotator cuff tears: A systematic review and meta-analysis. BMC Musculoskeletal Disorders, 25, Article 911.
