The double-blind method is adopted.Case selection Patients who underwent meniscus repair surgery under knee arthroscopy at Li Huili Hospital Affiliated to Ningbo University, the 906th Hospital of the People's Liberation Army (Joint Logistic Support Force of the Chinese People's Liberation Army), and Yangming Hospital Affiliated to Ningbo University (Yuyao People's Hospital), with ages set at 20 to 65 years old, are planned to be included in a sample size of 120 cases based on previous research experience, divided into 4 groups. They were respectively: the blank control group, the Henggu Bone Injury Healing Agent intervention group, the lower limb rehabilitation training system intervention group, and the Henggu Bone injury Healing agent combined with the lower limb rehabilitation training system intervention group, with 30 cases in each group. Grouping was conducted using a double-blind method, with random grouping carried out by a third-party organization.

1. Inclusion criteria: (1) The patient is conscious and aware of the content of this study; (2) Those with good compliance; (3) Possess good language communication skills.
2. Exclusion criteria: (1) Severely obese patients; (2) People with cognitive dysfunction; (3) Those with relevant serious complications; (4) Those with severe heart, liver or kidney insufficiency.
3. Exclusion criteria: Those who received intervention with other anti-inflammatory and analgesic drugs after the operation.

Criteria for terminating the study: Postoperative complications such as joint infection and deep vein thrombosis of the lower extremities occur after the operation.

Blank control group: No intervention measures Lower limb rehabilitation training system intervention group: Received rehabilitation system intervention after the operation Henggu Bone Injury Healing Agent Intervention Group: Take Henggu Bone Injury Healing Agent after the operation The combined intervention group: After the operation, they took Henggu bone injury Healing Agent and received rehabilitation system intervention The knee joint function and pain scores of each group, the implementation of the recovery plan, remote guidance of the rehabilitation system (applicable to the intervention group), and the duration of drug use: a total of 6 weeks of Henggu Bone Injury Healing Agent were evaluated at 1 day, 4 weeks, 3 months, and 6 months after the operation.

Inclusion Criteria:

(1) Patients with meniscus injury were conscious and aware of the content of this study. (2) Good compliance and cooperation with relevant drug treatments; (3) Possess good language communication skills.

Exclusion Criteria:

Patients with severe obesity; (2) People with cognitive dysfunction (such as Alzheimer's disease); (3) Those with severe heart, liver or kidney insufficiency.