Recently, Mr. He (pseudonym) successfully underwent a minimally invasive arthroscopic reconstruction of the anterior cruciate ligament at the First Hospital of Jinan University, relieving him of his 6-year-long painful knee instability. Mr. He fell 6 years ago while playing sports, and his joint was swollen and painful at that time. After rehabilitation and rest, he found that his knee was unstable when walking and he occasionally had weak legs. Recently, Mr. Ho’s symptoms of joint instability became more and more obvious and affected his life, so he decided to have surgery. After routine examination and preoperative preparation, the arthroscopic ACL reconstruction surgery was successfully completed, relieving Mr. Liang’s pain. After careful treatment, care and rehabilitation guidance by the bone and joint surgery team, Mr. He recovered well and was able to walk with a brace protected by crutches on the second day after surgery, and within 2 weeks, he wore a brace to protect the knee flexion up to 60 degrees, and is now discharged from the hospital to continue rehabilitation exercises. The anterior cruciate ligament (ACL) is a very important structure to maintain the anterior and posterior stability of the knee, and ACL injury is one of the more common sports injuries, and those who are diagnosed need to perform ligament reconstruction, which is very different from the traditional open method of taking autologous bone – patellar tendon – bone to reconstruct the ligament. Compared with the traditional method, the biggest advantages of this method are: less damage, faster recovery and better results! The method only requires two small holes in the front of the knee joint and a few centimeters long tendon extraction incision, which is much smaller than the traditional front of the knee, which is more than ten centimeters long and requires chiseling to remove the bone – patellar tendon – bone; in addition, the study found that taking the autologous tendon does not cause a decrease in muscle strength, there is no immune rejection, which facilitates the growth of the tendon in the bone tunnel, and because the tendon ends are fixed very firmly with the most advanced titanium plates and absorbable screws, there is no need for rigid fixation after surgery. It is possible to move at an early stage, avoiding complications such as stiffness caused by long time fixation of the joint, so the recovery is fast; at present, the method is also used by professional athletes at home and abroad for reconstruction after ACL injury, and countless of them have returned to the field after surgery, so the treatment effect is very good!