Table 5.
Overall Complication Rate Separated in Severity.
| Treatment Option | Grade I a | Grade II a | Grade III a | |||
|---|---|---|---|---|---|---|
| % (95% CI) | Proportion | % (95% CI) | Proportion | % (95% CI) | Proportion | |
| Overall | 4 (3-4) | 51 | 3 (3-4) | 33 | 3 (2-3) | 16 |
| Bone marrow stimulation therapies | 3 (2-4) | 48 | 2 (2-3) | 30 | 2 (2-3) | 22 |
| Retrograde drilling | 4 (2-7) | 50 | 3 (2-7) | 33 | 3 (1-6) | 17 |
| Fixation | 3 (1-7) | 50 | 3 (1-7) | N/A | 3 (1-8) | 50 |
| Matrix-assisted bone marrow stimulation | 2(1-3) | 22 | 2 (1-3) | 67 | 2 (1-3) | 11 |
| Cartilage implantation | 4 (2-6) | 44 | 3 (2-6) | 44 | 3 (1-5) | 11 |
| Osteo(chondral) autograft transplantation therapies | 6 (4-8) | 62 | 4 (3-5) | 28 | 3 (2-4) | 10 |
| Osteo(chondral) allograft transplantation therapies | 3 (2-7) | 13 | 6 (3-11) | 47 | 5 (3-9) | 40 |
| Metal implants | 7 (2-28) | 50 | 7 (3-15) | 42 | 3 (1-13) | 8 |
| Other | 5 (0-45) | N/A | 5 (0-45) | N/A | 5 (0-45) | N/A |
CI = confidence interval; N/A = not applicable.
a
Severity based on the grades of Modified Clavien-Dindo-Sink Complication Classification System for Orthopedic Surgery. Rates presented as percentage of the overall complication rate of the respective treatment option, and the proportion of the grade of all complications overall and per treatment option. No significant differences were found.