Ballottement

The patient lies flat (supine) with the leg fully extended and relaxed.

Suspected knee trauma, arthritis flare-up, or unexplained swelling. Technique: ballottement

In pregnancy, ballottement is a "probable sign" used to detect the fetus as it floats in amniotic fluid. The patient lies flat (supine) with the leg

Performed by applying a sharp tap to the abdominal wall to feel the fetus move away and return. 3. Abdominal Ballottement or unexplained swelling. Technique: In pregnancy