Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

551 questions · 579 findings · 72 reviews · Headline outcomes only

No studies found 158 · 27.3%GRADE not reported 44 · 7.6%Very low 173 · 29.9%Low 112 · 19.3%Moderate 66 · 11.4%High 26 · 4.5%

Bilateral subtotal thyroidectomy vs the Dunhill procedure

Permanent recurrent laryngeal nerve palsy [patient reported, confirmation by laryngoscopy]

Bilateral subtotal thyroidectomy showed no clear difference in permanent recurrent laryngeal nerve palsy [patient reported,… compared with the Dunhill procedure (low certainty).

1 finding from 1 review

Summary of findings: bilateral laminotomy vs conventional laminectomy

Incidence of postoperative instability · patients with lumbar stenosis

Summary of findings: bilateral laminotomy may leads to lower incidence of postoperative instability compared with conventional laminectomy (low certainty).

1 finding from 1 review

Summary of findings: bilateral laminotomy vs conventional laminectomy

Incidence of perioperative complications · patients with lumbar stenosis

Summary of findings: bilateral laminotomy showed no clear difference in incidence of perioperative complications compared with conventional laminectomy (low certainty).

1 finding from 1 review

Summary of findings: unilateral laminotomy vs conventional laminectomy

Incidence of postoperative instability · patients with lumbar stenosis

Summary of findings: unilateral laminotomy showed no clear difference in incidence of postoperative instability compared with conventional laminectomy (low certainty).

1 finding from 1 review

Summary of findings: unilateral laminotomy vs conventional laminectomy

Incidence of perioperative complications · patients with lumbar stenosis

Summary of findings: unilateral laminotomy showed no clear difference in incidence of perioperative complications compared with conventional laminectomy (low certainty).

1 finding from 1 review