Ruland Biceps Squeeze Test for Distal Biceps Tendon Tears

Published August 23, 2026 Read time 2 min read Readers 46
Ruland Biceps Squeeze Test

The Ruland Biceps Squeeze Test is a specialized clinical examination used by clinicians to diagnose distal biceps tendon tears (complete avulsion or rupture). Similar in principle to the Thompson test for Achilles tendon ruptures, it assesses the anatomical integrity of the distal biceps musculotendinous unit without relying on active patient effort.

What Is the Ruland Biceps Squeeze Test?

The Ruland Biceps Squeeze Test is a specialized clinical examination used by clinicians to diagnose distal biceps tendon tears (complete avulsion or rupture). Similar in principle to the Thompson test for Achilles tendon ruptures, it assesses the anatomical integrity of the distal biceps musculotendinous unit without relying on active patient effort.

What Is the Ruland Biceps Squeeze Test Used For?

The primary indication for the Ruland Squeeze Test is evaluating patients presenting with acute anterior elbow pain, weakness in forearm supination, or a suspected distal biceps tendon rupture.

  • Target Condition: Complete distal biceps tendon avulsion.
  • Clinical Utility: Quickly confirms loss of distal biceps continuity, particularly when painful guarding makes active strength testing difficult or unreliable.

How to Perform the Ruland Biceps Squeeze Test (Step-by-Step)

Follow these steps to accurately perform the test:

  1. Patient Positioning: Have the patient sit or stand comfortably. Flex the affected elbow to $60^\circ \text{–} 80^\circ$ with the forearm held in light pronation.
  2. Stabilization: Use one hand to gently support and stabilize the patient’s elbow joint.
  3. Muscle Squeeze: Place your opposite hand across the distal belly of the biceps muscle and apply a firm, transverse squeeze across the muscle belly.

Positive Result Interpretation

  • Positive Test (+): Absence of forearm or wrist supination upon squeezing the muscle belly. This indicates a complete tear or avulsion of the distal biceps tendon, as force transmission through the insertion is lost.
  • Negative Test (-): Forearm or wrist visibly rotates into supination. This confirms that the distal biceps tendon attachment remains intact.

Diagnostic Accuracy & Sensitivity

  • Sensitivity: 96%

Because of its high sensitivity, a positive Ruland test strongly suggests a distal biceps rupture and helps guide immediate diagnostic imaging (such as MRI) or surgical consultation.

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