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Patellar Pubic Percussion Test

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Other Names

  • PPPT
  • Patellar-Pubic Percussion Test



Demonstration of the Patellar Pubic Percussion Test[1]
  • The patient is supine
  • The bell of the stethoscope is placed on the pubic symphysis and held there by the patient
  • The patients legs are in neutral, knees extended
  • Examiner percusses each patella comparing the pitch and loudness
  • Normally, these sounds are similar and symmetric
  • If there is pathological bone architecture, there should be abnormal sounds
  • Positive test:
    • Affected side will have dull or diminished sound compared to unaffected side



Femoral Neck Fractures

  • Tiru et al[2]
    • Sensitivity: 96%
    • Specificity: 86%

See Also


  1. Image courtesy of Dr Huge Rodriguez, https://doctorhugorodriguez.com/
  2. Tiru M, Goh SH, Low BY. Use of percussion as a screening tool in the diagnosis of occult hip fractures. Singapore Med J 2002;43:467-469.
Created by:
John Kiel on 7 August 2019 21:18:14
Last edited:
25 April 2023 17:34:43