Table 2. Grades of Recommendation for Summaries or Reviews of Orthopaedic Surgical Studies
A | Good evidence (Level I studies with consistent finding) 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 |