Wound cleaning in orthopedic debridement is an important part of trauma management. Pulsed lavage (PL) is a type of lavage that uses a pump to form a high-speed jet of water at a certain pulse frequency to improve the debridement effect through the principle of high-frequency pulses. Normal wound healing requires three overlapping phases, namely the inflammatory response phase, the proliferation or fibrosis phase, and the reconstruction phase. The vascular and cellular response of trauma during the inflammatory response removes pathogenic microorganisms, foreign bodies, and necrotic tissue from the wound; while during the proliferative phase, granulation growth and re-epithelialization of the wound occurs; and during the reconstructive phase, collagen fibers are deposited in the dermis to make the wound more solid. If the inflammatory response of the organism is not sufficient to destroy the pathogenic microorganisms of the trauma, the trauma will become infected and both vascular regeneration and granulation tissue formation will be delayed. Therefore, the purpose of orthopedic debridement includes the removal of all substances that may prevent wound healing (debridement or dilation), so that wound healing progresses as quickly as possible from the inflammatory response phase to the proliferative or fibrotic phase. PL’s pulsed water flow is generated by an electric pump system. The first use of this technology for wound cleaning was in the 1960s, when the U.S. military created PL technology and conducted research on it while dealing with a large number of war wounds. A number of medical device companies are now producing pulse irrigators, which are usually connected to a suction device to ensure that a pulsatile water stream is generated in the trauma area while suctioning the irrigation fluid. Flushing pressure is the most important factor affecting the effectiveness of wound cleaning. PLs less than 1 psi have very limited ability to remove bacteria and debris and have no clinical value; PLs between 5 and 10 psi are most effective for removing loose necrotic tissue and debris from the trauma; PLs above 10 psi are more effective for cleaning severely contaminated trauma.