Inclusion Criteria:  Discharge diagnosis of patients with sports injury-related injuries (ICD codes are M12, M13, M15-M19, M20-M25, M65-67, M70, M71, M75, M76, M94 and S33, S40, S43, S46, S51, S53, S63, S8, S73, S93) Patients whose service item name in the detailed database contains the keyword "arthroscope". Any one of the above will be included in this topic.  Exclusion Criteria:  After the data is cleaned, it does not meet the requirements of sports injury patients; The data content contains obvious defects and cannot be backfilled.