Gravity Fluid Flow More Accurately Reflects Joint Fluid Pressure Compared with Commercial Peristaltic Pump Systems in a Cadaveric Model.

Arthroscopic flow management systems produce maximal and overshoot pressures that are not seen with gravity flow. Surgeons should understand intra-articular pressure and fluid delivery behavior during shoulder and knee arthroscopy to adapt to the variability and higher maximal pressures when using pump systems. Maintaining appropriate pressure could prevent fluid extravasation and possible neuromuscular dysfunction.