1, Donghai Chao: Second Affiliated Hospital of Dalian Medical University, joint surgery, chief physician, professor, tutor for master students, engaged in joint surgery and sports medicine for 3 1 year, specializing in minimally invasive arthroscopic surgery to treat sports injuries and diseases in shoulders, knees, hips, elbows, wrists and ankles, and mastering artificial knee and hip replacement, as well as osteotomy and orthopedic surgery.

2. Ruan: Chief physician of minimally invasive joint surgery, Dalian Hospital of Integrated Traditional Chinese and Western Medicine. 1996 graduated from the Faculty of Medicine of China Medical University. He is good at clinical treatment of knee arthritis, meniscus injury, knee trauma, femoral head necrosis, femoral head fracture, scapulohumeral periarthritis, rotator cuff injury and other joint diseases.

3. Lu Jianmin: Department of Orthopaedics, Zhongshan Hospital affiliated to Dalian University, chief physician, professor, master of medicine, tutor for master students. 1989 graduated from the Department of Clinical Medicine of Dalian Medical University, 1995 Master of Orthopaedics of Dalian Medical University. He is good at the diagnosis and treatment of cervical spondylosis, lumbar disc herniation, spinal fracture, scoliosis and other spinal diseases. His main direction is spinal diseases. Among them, minimally invasive surgery under microscope is the treatment feature, which has the advantages of less trauma, rapid recovery and remarkable effect.