![Modified Outerbridge classification divides cartilage into five grades, from grade 0 to grade IV

Souza, A. R. M., Castro, A. do A. e ., Fonseca, E. K. U. N., Nunes, L. M. A. O., Baptista, E., & Hartmann, L. G. de C.. (2020). Magnetic resonance imaging aspects after surgical repair of knee cartilage: pictorial essay. Radiologia Brasileira, 53(3), 201–207. https://doi.org/10.1590/0100-3984.2019.0020](https://s3-us-west-2.amazonaws.com/secure.notion-static.com/39e0e237-27a4-4627-93ed-3e33791cff34/Modified_Outerbridge_classification.jpg)

Modified Outerbridge classification divides cartilage into five grades, from grade 0 to grade IV

Souza, A. R. M., Castro, A. do A. e ., Fonseca, E. K. U. N., Nunes, L. M. A. O., Baptista, E., & Hartmann, L. G. de C.. (2020). Magnetic resonance imaging aspects after surgical repair of knee cartilage: pictorial essay. Radiologia Brasileira, 53(3), 201–207. https://doi.org/10.1590/0100-3984.2019.0020