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Related Concept Videos

Korotkoff Sounds01:12

Korotkoff Sounds

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Korotkoff sounds are the specific sounds heard while measuring blood pressure using a sphygmomanometer, typically with a stethoscope or a Doppler device. They are named after Russian physician Nikolai Korotkov, who first described them in 1905. These sounds correspond to turbulent blood flow in the artery as the blood pressure cuff is gradually released after inflation.
During blood pressure assessment, inflating the cuff 30 millimeters of mercury above the patient's systolic blood pressure...
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Pericarditis is distinguished by inflammation of the pericardium, the fibrous sac that encases the heart. It can be acute, lasting less than six weeks, or chronic, persisting for over three months. Understanding its clinical manifestations and diagnostic findings is crucial for timely and effective management.Clinical ManifestationsWhile pericarditis can be asymptomatic, it usually presents with characteristic symptoms such as:Chest Pain: The most characteristic symptom of pericarditis is chest...
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Related Experiment Video

Updated: Apr 30, 2026

Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft
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Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft

Published on: June 6, 2025

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Rotator cuff crepitus: could Codman really feel a cuff tear?

Brent A Ponce1, Joseph A Kundukulam1, Evan D Sheppard1

  • 1Division of Orthopaedic Surgery, University of Alabama, Birmingham, AL, USA.

Journal of Shoulder and Elbow Surgery
|May 3, 2014
PubMed
Summary

Palpating crepitus is a useful clinical test for diagnosing rotator cuff tears, showing good accuracy, especially in older patients. This physical examination aids in assessing rotator cuff integrity.

Keywords:
Rotator cuff tearcrepitus testpalpationphysical examination

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Area of Science:

  • Orthopedic Surgery
  • Diagnostic Accuracy
  • Musculoskeletal Imaging

Background:

  • Rotator cuff tears are a common cause of shoulder pain.
  • Accurate diagnosis is crucial for effective treatment planning.
  • Clinical examination plays a key role in initial assessment.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of the crepitus test for rotator cuff tears.
  • To determine the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of palpating crepitus.
  • To assess if patient age influences the accuracy of the crepitus test.

Main Methods:

  • Prospective enrollment of 70 patients with shoulder pain.
  • Standardized history, physical examination including the crepitus test, and radiographs.
  • Magnetic resonance imaging (MRI) as the gold standard, interpreted by a blinded radiologist.
  • Statistical analysis to calculate diagnostic performance metrics.

Main Results:

  • The crepitus test demonstrated a sensitivity of 67% and specificity of 80% for all rotator cuff tears.
  • For full-thickness or high-grade partial tears, sensitivity was 82% and specificity was 73%.
  • In patients over 55 years, the crepitus test showed improved accuracy with 76% sensitivity and 100% specificity.

Conclusions:

  • The crepitus test is a valuable bedside tool for diagnosing rotator cuff tears.
  • Its favorable diagnostic metrics support its use in clinical practice.
  • The test's accuracy is enhanced in older patient populations.