Insufflation is a technique to distend the space within the knee capsule in order to break down early adhesions and restore range of motion.
Pre-arthroscopy capsular insufflation
Fluid is introduced into the knee before any arthroscopic or keyhole procedure, but insufflation implies that the irrigation fluid is under increased pressure in a sticky knee, with a view to actually stretching the capsule of the knee, breaking some of the adhesions and allowing the surgeon to access the back of the knee with the keyhole instruments.
Synonyms:
capsular insufflation, capsular distension
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Relevant material -
eBook - How to perform Patellar Mobilisations
Practical illustrated guide to preventing and breaking down knee adhesions around the patella.