Surgical treatment of osteoarthrosis Surgical treatment of osteoarthrosis includes: arthroplasty, osteotomy and arthroplasty (artificial joint replacement). Minimally invasive arthroscopic surgery Indications for minimally invasive arthroscopic surgery: no effect after 2 months of regular medication, repeated conservative treatment with X-ray (grade I~III) or MRI (cartilage wear grade II or above), X-ray (grade I~III) with free body strands, meniscal damage symptoms, more severe synovitis, etc. No contraindications to surgery, such as skin rash, infection, stiffness, etc. in the surgical area The purpose of minimally invasive arthroscopic surgical treatment: to relieve pain symptoms and delay the time of artificial joint replacement. Role of minimally invasive arthroscopic surgical treatment: remove cartilage debris, small free bodies and pathogenic factors, remove collagen antibodies, slow down autoimmune reaction to reduce synovial inflammation, remove synovial edema; cations in the flushing fluid adsorb negatively charged pain-causing factors, replenish sodium and potassium ions, and alkalize the joint fluid. Osteotomy Purpose of osteotomy Correction of force lines and stress distribution often relieves pain and improves function Arthroplasty? Artificial joint replacement? Age should generally be 50 years or older? Generally have better results? The purpose of artificial joint replacement surgery to relieve pain and improve function Indications for artificial joint therapy Severe osteoarthritis, significant pain, severe deformity and decreased mobility Conservative treatment is ineffective in reducing the patient’s quality of life and the patient’s functional requirements Contraindications to artificial joint therapy More combined disorders, physical conditions do not allow infection Loss of innervation of the joint Neurological disorders Poor muscle strength Joint laxity Mental abnormalities? Commonly applied joints: knee, hip, ankle, finger and interphalangeal joints, elbow joint shoulder joint.