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What do systematic reviews say?

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Evidence found and GRADE certainty

715 questions · 767 findings · 53 reviews · Back and Neck

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No studies found 149 · 19.4%GRADE not reported 41 · 5.3%Very low 168 · 21.9%Low 226 · 29.5%Moderate 156 · 20.3%High 27 · 3.5%

MET plus any intervention vs the intervention alone

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · patients with non‐specific low‐back pain (LBP)
2 findings from 1 review

MET plus any intervention vs the intervention alone

General well‐being · patients with non‐specific low‐back pain (LBP)

The review found no eligible studies for this question.

2 findings from 1 review

MET plus any intervention vs the intervention alone

Adverse events · patients with non‐specific low‐back pain (LBP)

The review found no eligible studies for this question.

2 findings from 1 review

MET plus any intervention vs the intervention alone

CI: Confidence interval · patients with non‐specific low‐back pain (LBP)

The review found no eligible studies for this question.

2 findings from 1 review

MET plus any intervention vs other therapies plus that intervention

General well‐being · patients with non‐specific low‐back pain (LBP)

The review found no eligible studies for this question.

2 findings from 1 review

MET plus any intervention vs other therapies plus that intervention

Adverse events · patients with non‐specific low‐back pain (LBP)

The review found no eligible studies for this question.

2 findings from 1 review

MET plus any intervention vs other therapies plus that intervention

CI: Confidence interval · patients with non‐specific low‐back pain (LBP)

The review found no eligible studies for this question.

2 findings from 1 review

Summary of findings: bilateral laminotomy vs conventional laminectomy

Disability Long‐term (≥ 12 months) Disability scores converted to 0 to 100 scale to allow for comparison of different disability scales (RMDQ, ODI, JOA) · patients with lumbar stenosis

It is very uncertain whether summary of findings: bilateral laminotomy changes standardized Disability Index (0 to 100) Bilateral laminotomy… compared with conventional laminectomy (very low certainty).

1 finding from 1 review

Summary of findings: unilateral laminotomy vs conventional laminectomy

VAS back (0 to 10) Unilateral laminotomy compared with conventional laminectomy · patients with lumbar stenosis

It is very uncertain whether summary of findings: unilateral laminotomy changes VAS back (0 to 10) Unilateral laminotomy compared with conventional… compared with conventional laminectomy (very 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

Summary of findings: split‐spinous process laminotomy vs conventional laminectomy

Disability Long‐term (≥ 12 months) Disability scores converted to 0 to 100 scale to allow for comparison of different disability scales (RMDQ, ODI, JOA) · patients with lumbar stenosis

Summary of findings: split‐spinous process laminotomy showed no clear difference in standardised Disability Index (0 to 100) Split‐spinous process… compared with conventional laminectomy (low certainty).

1 finding from 1 review