Teenage knee fractures are often complicated by knee valgus and valgus deformity, which not only affects the beauty of the patient’s legs, but also makes the O-shaped leg so that the knee joint force imbalance, which can cause knee arthritis, leading to joint pain and other symptoms, which has a serious impact on the patient’s life, and often requires surgical treatment, and the notes for the postoperative correction are as follows. 1, postoperative position 6 hours after the operation, lying down, monitoring changes in vital signs, pay attention to observe the patient’s state of mind, dizziness, nausea. The affected limb should be elevated to reduce swelling and prevent blood seepage, and observe the blood flow of the foot and the dorsalis pedis arterial pulsation. After awake from anesthesia, observe the sensation and movement of the affected limb. Lower extremity surgery is easy to complicate the deep vein thrombosis of the lower extremity, after the operation, pay attention to observe the swelling of the lower extremity subside, and encourage patients to do lower extremity muscle contraction and relaxation function exercise at an early stage. 2.Post-operative diet If orthopedic surgery is traumatic, it needs to consume a lot of nutrients to restore the normal nutritional metabolic balance, and it should be given with high-calorie, high-protein, vitamin-rich and easy-to-digest diet. Due to the influence of anesthesia and postoperative bedridden, will lead to slow intestinal peristalsis, should pay attention to the time to fill the crude fiber food, such as fruits, vegetables, in order to prevent constipation. Patients are often left with a urinary catheter during surgery, so patients should be encouraged to drink more water. 3.Early functional recovery exercise Rehabilitation exercise is an equally important part of surgical treatment, for the recovery of knee function has a crucial role, family members should guide the patient to carry out isometric contraction of quadriceps muscle and ankle dorsiflexion, plantarflexion training, each action to maintain contraction for 5 seconds, and then relaxation for 5 seconds, and gradually increase the patient’s training intensity and activity time, in order not to feel fatigue is suitable for the limbs of the early! Early limb activity can help restore the normal vascular tone of the lower limbs, promote the recovery of normal circulation and prevent the formation of deep vein thrombosis. Strive for early activities on the ground.