Meniscus surgery using the Watanabe arthroscope.

1. The present uses for arthroscopic meniscus surgery are explained. 2. Postoperative care is facilitated by arthroscopic meniscus surgery. However, improvement in surgical instruments and manipulation is necessary in order to complete the surgery in a short time and to make it easy to perform. 3. Total meniscectomy is especially useful in the Japanese because the discoid meniscus was observed in 16.6 per cent in my arthroscopic study. The incidence is considerably higher than that in foreigners. The procedure for arthroscopic total meniscectomy must be improved. 4. The three puncture method is useful. 5. Partial meniscectomy yields excellent results, but there are pitfalls to watch for. 6. A case of combined surgery with partial meniscectomy and meniscorisis is presented.