Total knee arthroplasty (TKA) is an effective treatment for severe knee joint diseases; however, postoperative complications such as pain, swelling, and delayed functional recovery remain common challenges. Cyclic compression cryotherapy, which applies alternating cold and pressure to the knee joint, can effectively reduce swelling and alleviate pain. Meanwhile, phased rehabilitation training, tailored to the specific recovery stages post-surgery, facilitates targeted exercise interventions to promote functional restoration of the knee joint.