Indications for arthroscopic surgery and what kind of people can have arthroscopic surgery? Any lesion within the knee joint, except those with skin infections and bony ankylosis of the joint, is an indication for arthroscopy of the knee. If a lesion is suspected to be present in the joint, a diagnostic arthroscopy may be considered. Further management is then based on the results of the diagnostic arthroscopy. Bacteria can be carried into the joint via arthroscopy in localized skin infections of the knee joint. In bony ankylosis of the joint, there is no flexion or extension of the joint, no joint space, and the arthroscope cannot be placed. Both of these are absolute contraindications to surgery. The main procedures that can be done arthroscopically are as follows: I. Knee (1) Acute knee injury Traumatic hematoma: examination and irrigation. Cruciate ligament injury: reconstruction or strengthening surgery. Meniscal circumferential injury: suturing or plication. Osteochondral fracture: removal of cartilage fragments. Tibial plateau fracture: microscopic repositioning and internal fixation. (2) Mechanical disorder Meniscal injury: suture, partial resection, subtotal resection. Discoid meniscus injury: partial excision and plication. Cruciate ligament injury: ligament reconstruction. Free body: removal surgery. (3) Knee pain Patellar subluxation: patellar lateral support band release, medial support band tightening. Synovial crease syndrome: creasectomy. Chondromalacia of the patella: chondroplasty. Degenerative meniscal lesion: partial resection. Intra-articular adhesion band: release surgery. (4) Knee arthritis Osteoarthritis: joint surface revision, free body removal, partial excision of degenerative ruptured meniscus, bone grinding, bone bed drilling, synovectomy and joint irrigation. Rheumatoid arthritis: diagnosis and synovectomy. Crystalline synovitis: arthrocentesis. Septic arthritis: cleanup of necrotic material and joint irrigation. Chronic arthritis: synovial nodular synovitis, synovial chondromatosis, hemophilic arthritis, psoriatic arthritis and synovial tuberculosis are all treated with synovectomy and joint irrigation. Shoulder joint 1. rotator cuff injury 2. habitual dislocation of shoulder joint, glenoid labrum injury 3. frozen shoulder, commonly known as frozen shoulder 4. shoulder impingement syndrome 5. shoulder arthritis, free body 3. ankle joint 1. ankle free body 2. ankle arthritis, etc. 3. ankle ligament injury