With over 30 years of clinical experience in orthopedics, I have accumulated rich experience in the diagnosis and treatment of trauma, osteoarthritis, bone diseases, and senile osteoporosis of the knee, hip, and shoulder joints, especially in the diagnosis and treatment of complex joint diseases. Specialties: management of various types of osteoarthritis, rheumatoid arthritis, and post-fracture joint deformities of the knee and hip. This includes joint replacement surgery, revision joint surgery, and arthroscopic surgery for the knee, hip, and elbow joints. I have also accumulated considerable experience in tumor prosthesis replacement around the hip and knee joints. In 1997, I participated in the Chinese foreign aid medical team to work in Morocco for two years. Later, I went to Lyon and Grenoble in France and Sydney in Australia for short-term further training.