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Characteristics Excluded Studies Due to Underreporting/Unclear Reporting of Complications.
| Treatment Option | Lesions n |
|---|---|
| Overall | 6,261 |
| Bone marrow stimulation therapies | 2,916 |
| Retrograde drilling | 253 |
| Fixation | 181 |
| Matrix-assisted bone marrow stimulation | 1,031 |
| Cartilage implantation | 493 |
| Osteo(chondral) autograft transplantation therapies | 1,068 |
| Osteo(chondral) allograft transplantation therapies | 236 |
| Metal implants | 41 |
| Other | 42 |
