1.2.3. Inclusion criteria.
DISEASES, BONE DISEASES, CAVITY
Those who meet the diagnostic criteria of CP; age: ≥18 and ≤65 years old, regardless of gender; within 3 months before enrollment, they did not receive joint cavity injection treatment and did not take any drugs to treat CP; those who have certain communication and understanding ability, and can express their own will correctly; no other soft tissue and bone diseases of the knee joint; those who voluntarily accept corresponding treatment and can cooperate; no other serious nervous or mental diseases; and those who have signed the informed consent.