Patient: Description of the condition (onset time, main symptoms, hospital, etc.): more than 40 days a ago, the child played blue ball to sprain the knee, to the hospital film, said the bone no problem, prescribe some medicine, said three days no pain will not be used, three days later, pain relief point, the child in Dalian Polytechnic study, very busy, did not go, eleven holiday home again film, said the bone pulled off a small piece, holiday did not do on the MRI, let play a cast I was not sure, so I went to the hospital to take an MRI and diagnosed the following: right tibia, femur bone contusion, right knee joint effusion, right lateral meniscus posterior horn injury, right ACL injury, right medial collateral ligament mild injury, eat blood activation medicine, external ointment, and now after more than a week, the symptoms are lessened. He walks with a limp every day to school and is afraid of exerting force on his right leg, so he relies on his left leg, which suffers too much, and his left knee feels uncomfortable. I’m not around my child, so I’m anxious, thank you. Doctor: Everything else is fine, but only the ACL stop tear needs to be treated as soon as possible, because after his tear the ACL will relax and the knee joint will become unstable secondary to the bone block moving up causing intercondylar fossa occupancy and limited knee extension or pain, so arthroscopic surgery should be done to reset the fracture block. Also repair the damaged meniscus. Patient: Hello, thank you for your reply. How long does arthroscopic surgery take, how long does the recovery take and what is the approximate cost? Doctor: The time required for arthroscopic surgery is determined by the type and content of the procedure, which is not as long as simply repairing the ACL stop, or repairing the damaged meniscus at the same time, as well as other lesions in the joint, etc. It takes about 2 hours. The postoperative response is mainly to get off the ground 1 day after surgery, usually requiring a brace to be worn, and a ligament stop repair brace to be worn for 6-8 weeks, with regular angle adjustments during that time. Hospitalization is about 7-10 days. The cost is about 20,000. Patient: Hello, now the child is in school, ten days of time is not expected, only wait for the vacation, please ask if there is a good conservative treatment method. Thank you Doctor: The fracture block will absorb or displace and heal after too long, plus the ligaments will be contracted after no tension, so it is more difficult to operate again. The conservative method is to wear a knee stabilization brace, avoid strenuous sports and lower limb muscle strength training.