Crepitus (in the knees) is a fine crunching noise, usually on bending the knee from standing.

Reminiscent of crushing a packet of crispie rice breakfast cereal, in the early stages it is felt, rather than heard, by laying the palm of the hand on the kneecap and bending the knees (while standing).

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Common knee symptoms

'Common things occur commonly!'

Symptoms associated with patellofemoral pain

Part 5a of a course on Patellofemoral Pain by Dr Ronald Grelsamer of Mount Sinai Hospital in New York.

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Common Knee Symptoms - ebook