Treatment Outcomes for Osteochondritis Dissecans of the Knee: A Cohort Study

In this study, the MOCART scoring system was used to quantitatively assess the quality of postoperative cartilage repair. This scoring was based on postoperative MRI and evaluated comprehensively from 9 dimensions including the integrity of the repaired tissue, surface condition, signal intensity, and integration with surrounding tissues. The total score ranged from 0 to 100. The higher the score, the better the morphological outcome of the cartilage repair. Previous studies have suggested that a score of more than 70 indicates good repair, and a score of more than 85 indicates excellent repair.

It is a one-dimensional scale ranging from 0 to 10, used to assess the activity level of patients in terms of sports and daily work. The higher the score, the higher the activity level of knee joint. High score (8-10 points): Indicates the level of competitive sports, with extremely high requirements for the knee joint. Medium score (4-7 points): Represents recreational sports and physical labor, which is the level of most active people. Low score (0-3 points): Represents daily life and sedentary work, with a lower load on the knee joint.

It can comprehensively assess the knee joint's functionality, consisting of 18 questions, covering three dimensions: symptoms, sports activity function, and daily activity function. The higher the score, the better the knee joint's functionality and the fewer the symptoms. Generally, a score of >90 indicates excellent function, while a score of <70 indicates significant functional impairment. The minimum clinically important difference is approximately 10-12 points.

It can assess specific symptoms and functional impairments of the knee joint, and has particular advantages in reflecting instability and limitations in daily activities. It consists of 8 items, with a total score of 100. The higher the score, the better the function. Function classification (widely accepted standard): Excellent: 95 - 100 points; Good: 84 - 94 points; Average: 65 - 83 points; Poor: < 65 points.

It can quantify the intensity of subjective pain and is the simplest and most direct method for pain assessment. It is usually a horizontal line 10 centimeters long, with "no pain" marked at the left end (0 points) and "the most intense pain" marked at the right end (10 points). The patient marks their own sensation on the line. 0 points: No pain. 1-3 points: Mild pain (not affecting sleep). 4-6 points: Moderate pain (affects sleep but is tolerable). 7-10 points: Severe pain (extremely unbearable, seriously affecting sleep and daily life).

This study will systematically monitor and record all adverse events and serious adverse events that occur from the start of treatment until the last follow-up. Adverse events refer to any adverse medical events that occur in patients after receiving treatment. These include, but are not limited to, common complications related to surgery, failure of cartilage repair, joint stiffness, and activity impairment. Serious adverse events include situations that result in death, endanger life, require hospitalization, cause significant functional impairment, or other important medical events.