Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

880 questions · 912 findings · 126 reviews · Headline outcomes only

No studies found 143 · 15.7%GRADE not reported 38 · 4.2%Very low 250 · 27.4%Low 253 · 27.7%Moderate 168 · 18.4%High 60 · 6.6%

Intervention not reported

Analgesia duration 1 mg morphine vs 4 mg/5 mg morphinetime duration from the end of surgery to the first time of analgesic consumption · patients undergoing knee arthroscopy
1 finding from 1 review

Intervention not reported

Adverse events 1 mg morphine vs 4 mg/5 mg morphinePercentage of participants with any adverse event · patients undergoing knee arthroscopy

The review found no eligible studies for this question.

1 finding from 1 review

IA morphine vs IM morphine

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · patients undergoing knee arthroscopy
3 findings from 1 review

Morphine vs bupivacaine

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · patients undergoing knee arthroscopy
3 findings from 1 review

Intervention not reported

At least 50% of maximum pain relief over 4 to 6 h · adults with acute postoperative pain

The intervention probably leads to higher at least 50% of maximum pain relief over 4 to 6 h (moderate certainty).

1 finding from 1 review