Impact of Personalized Rehabilitation Guidance

(1) Preoperative education: An appropriate walking aid was provided for the patient and instructions were given to guide correct use, while isometric muscle exercises were taught. (2) Postoperative care: Six hours after anesthesia recovery, the head of the patient's bed could be elevated as needed, and the patient was instructed to perform ankle pumps (dorsiflexion and plantarflexion of the ankle).(3) Postoperative exercise: One to two days after surgery, following the removal of the drainage tube, the patient was encouraged to continue with ankle pumps and isometric quadriceps contractions, as well as to begin straight-leg raises. (4) Postoperative Day 3: In strict accordance with medical advice and under the guidance of a physiotherapist, patients engaged in continuous passive motion therapy for the affected knee, along with manual knee joint massage. (5) Postoperative Days 5-7: the patient would try to stand with the assistance of a walker, gradually progressing to walking exercises

(1) Intervention Day 1: (i) All patients in the observation group were provided with an introduction to the study and invited to join the WeChat group for the observation group. (2) Intervention Day 2: Exercise guidance for patients with KOA was shared via the WeChat group.(3) Intervention Day 3: Guidance for emotional regulation was sent to the patients with KOA via the WeChat group.(4) Intervention Week 1: A micro-lesson on KOA-related knowledge was delivered via the WeChat group to deepen patients' understanding. (5) Intervention Week 2: (i) Text instructions and related questions on common conservative treatments for KOA, including topical and oral painkillers, were shared, with correct answers provided the next day.(ii) A micro-lesson on exercise guidance for patients with KOA was uploaded to the WeChat group to reinforce patients' understanding.