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. 2016 Mar 18;24:1409–1420. doi: 10.1007/s00167-015-3976-y

Table 2.

Grades of recommendation for orthopaedic surgical studies

Grade of recommendation Description
A Good evidence (Level I studies with consistent findings) for or against recommending intervention
B Fair evidence (Level II or III studies with consistent findings) for or against recommending intervention
C Poor quality evidence (Level IV or V studies with consistent findings) for or against recommending intervention
I There is insufficient or conflicting evidence not allowing a recommendation for or against intervention