chapter 10: Patellar Dislocation

Patellar Dislocation

"1 expect to pass through this world but once. Any good therefore that I can do or any kindness that 1 can show for any fellow creature, let me do it now. Let me not defer or neglect it, for I shall not pass this way again."

—Ralph Waldo Emerson

Patellar dislocation may occur as a direct traumatic event in the patient with normal patellar alignment, or it may occur in the patient with pre‑existing malalignment, particularly if there is significant baseline subluxation.. Subluxation with or without associated tilt will predispose a patient to patellar dislocation. Patellar dislocation also occurs after total knee replacement (1).

Whether patellar trauma is direct such that articular cartilage is damaged by extreme and sudden compression, or indirect by twisting the knee with lateral vector stress on the patella causing dislocation, acute articular injury is common.



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