Arthroscopic Partial Meniscectomy Time Window

The purpose was to assess knee function outcomes between early arthroscopic partial meniscectomy(APM) and delayed APM for patients with degenerative meniscus lesions(DMLs)

Inclusion Criteria:• Clinical diagnosis of degenerative meniscus lesions based on knee MRIExclusion Criteria:• Must be able to have no acute knee injury such as car crash or acute sports injury;Must be able to have no knee surgeries history;Must be able to have no rheumatoid arthritis or serious knee osteoarthritis with deformity;Must be able to have no contraindications to MRI;Must be able to have no severe cardiopulmonary disease;Must be able to have no musculoskeletal or neuromuscular impairments ;Must be able to have good visual, hearing, or cognitive;