Clinical Related Study on Surgical Treatment of Knee Joint Meniscus Injury

Study Overview
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Brief Summary
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Through the analysis of the data of 8094 patients with knee meniscus injury before December 31, 2008 and more patients with partial meniscus resection, subtotal resection and total resection, we can understand the gender difference and ratio of medial and lateral meniscus injuries. Differences, differences in locations, differences in tearing methods, differences in surgical methods, and the course of the disease affect the meniscus injury and surgical methods, and further affect the patient's knee degeneration imaging, accompanying cartilage injury, knee osteoarthritis, Partial resection, subtotal resection and meniscus regeneration after total resection, imaging and secondary arthroscopic exploration (Second-Look) were studied.

Detailed Description
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Through the data of 8094 patients with knee meniscus injury who underwent surgery at the Institute of Sports Medicine of the Third Hospital of Beijing Medical University before December 31, 2008, and the patients who underwent meniscus suture, partial resection, subtotal resection, and total resection. Analyze and understand the influence of gender difference, ratio difference, position difference, tearing method difference, surgical method difference and disease course on the meniscus injury situation and operation method of the internal and lateral meniscus injury. Observation and research will also be conducted on reports of knee cartilage injury, knee osteoarthritis, and meniscus regeneration after partial meniscus resection, subtotal resection and total resection.

Official Title
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Clinical Related Study on Surgical Treatment of Knee Joint Meniscus Injury

Conditions
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Meniscus Injury

Intervention / Treatment
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* Procedure: Meniscus Suture
* Procedure: Partial meniscus resection
* Procedure: Subtotal meniscus resection
* Procedure: Complete meniscectomy


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Before December 31, 2008, patients who underwent surgery for meniscus injury in this institute and patients who underwent meniscus suture, partial resection, subtotal resection, and total resection. Exclusion Criteria: -
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Meniscus Suture<br>The patient underwent meniscus suture surgery | Procedure: Meniscus Suture<br>* Patients with knee joint meniscus injury undergoing meniscus suture<br>|
| Partial meniscus resection<br>The patient underwent partial meniscus resection | Procedure: Partial meniscus resection<br>* Patients with knee joint meniscus injury undergoing partial meniscus resection<br>|
| Subtotal meniscus resection<br>The patient underwent Subtotal meniscus resection | Procedure: Subtotal meniscus resection<br>* Patients with knee joint meniscus injury undergoing subtotal meniscus resection<br>|
| Complete meniscectomy<br>The patient underwent complete meniscectomy | Procedure: Complete meniscectomy<br>* Patients with knee joint meniscus injury undergoing complete meniscectomy<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Meniscus injury site | Observe the meniscus injury site during the operation, which is divided into: medial and lateral anterior horn, medial and lateral body, medial and lateral posterior horn, medial and lateral disc. | During operation | 
| Types of Meniscus Injury | The types of meniscus injuries were observed during the operation, which were divided into longitudinal fissure, oblique fissure, spallation, radial fissure, and barrel shank tear. | During operation | 
| Meniscus surgery method | Meniscus surgery methods include: partial resection, subtotal resection, total resection, and suture. | During operation | 
| Cartilage damage | The cartilage damage is evaluated as yes or no, where the cartilage surface is smooth and complete is defined as no, and the rest is defined as yes. | During operation | 
| Cartilage damage | Second-look after operation to observe whether the cartilage is damaged. The cartilage damage is evaluated as yes or no, where the cartilage surface is smooth and complete is defined as no, and the rest is defined as yes. | 7 years after surgery | 
| Meniscus regeneration | Second-look after operation to observe whether the meniscus is regenerating. The Meniscus regeneration is evaluated as yes or no, in which the meniscus shape is complete and no tear is defined as yes, and other conditions are defined as no. | 7 years after surgery |