From:  Osteochondritis dissecans: analyzing educational content quality and reliability on YouTube

 Osteochondritis dissecans specific scores (OCDSS), developed by the authors.

Osteochondritis dissecans specific score categories
Patient presentation (2 points total)
Describes symptoms (1 point)
Describes patient population (1 point)
Information on OCD (2 points total)
Describes anatomy (1 point)
Describes causes of OCD (1 point)
Diagnosis and evaluation (5 points total)
Describes physical exam (tenderness, effusion, loss of motion, or crepitus) (1 point)
Mentions limitations of X-ray for diagnostic purposes (1 point)
Mentions use of MRI as gold standard (1 point)
Describes surgical candidates (1 point)
Describes nonsurgical candidates (1 point)
Treatment (2 points total)
Describes surgical treatment (1 point)
Describes nonsurgical treatment (1 point)

One point is assigned for each criterion met by the video (maximum 11, minimum 0). Inspired by previous studies [15]. OCD: osteochondritis dissecans.