Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,234 questions · 3,357 findings · 396 reviews

No studies found 803 · 23.9%GRADE not reported 270 · 8%Very low 757 · 22.5%Low 859 · 25.6%Moderate 486 · 14.5%High 182 · 5.4%

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: bilateral laminotomy vs conventional laminectomy

Satisfactory recovery Bilateral laminotomy compared with conventional laminectomy Satisfactory recovery was defined as 'good' or 'excellent' self‐perceived recovery · patients with lumbar stenosis

Summary of findings: bilateral laminotomy may leads to higher satisfactory recovery Bilateral laminotomy compared with… compared with conventional laminectomy (low certainty).

1 finding from 1 review

Summary of findings: bilateral laminotomy vs conventional laminectomy

VAS leg (0 to 10) Bilateral laminotomy compared with conventional laminectomy · patients with lumbar stenosis

It is very uncertain whether summary of findings: bilateral laminotomy changes VAS leg (0 to 10) Bilateral laminotomy compared with conventional… compared with conventional laminectomy (very low certainty).

1 finding from 1 review

Summary of findings: bilateral laminotomy vs conventional laminectomy

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

Summary of findings: bilateral laminotomy showed no clear difference in VAS back (0 to 10) Unilateral laminotomy compared with conventional… compared with conventional laminectomy (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

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: unilateral laminotomy showed no clear difference in standardised Disability Index (0 to 100) Unilateral laminotomy… compared with conventional laminectomy (low certainty).

1 finding from 1 review

Summary of findings: unilateral laminotomy vs conventional laminectomy

Satisfactory recovery Bilateral laminotomy compared with conventional laminectomy Satisfactory recovery was defined as 'good' or 'excellent' self‐perceived recovery · patients with lumbar stenosis

Summary of findings: unilateral laminotomy showed no clear difference in satisfactory recovery Unilateral laminotomy compared with… compared with conventional laminectomy (low certainty).

1 finding from 1 review

Summary of findings: unilateral laminotomy vs conventional laminectomy

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

Summary of findings: unilateral laminotomy showed no clear difference in VAS leg (0 to 10) Unilateral laminotomy compared with conventional… 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

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

Satisfactory recovery Bilateral laminotomy compared with conventional laminectomy Satisfactory recovery was defined as 'good' or 'excellent' self‐perceived recovery · patients with lumbar stenosis

Summary of findings: split‐spinous process laminotomy led to lower satisfactory recovery Split‐spinous process laminotomy compared with… compared with conventional laminectomy; GRADE not reported.

1 finding from 1 review

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

VAS leg (0 to 10) Split‐spinous process laminotomy compared with conventional laminectomy · patients with lumbar stenosis

It is very uncertain whether summary of findings: split‐spinous process laminotomy changes VAS leg (0 to 10) Split‐spinous process laminotomy compared with… compared with conventional laminectomy (very low certainty).

1 finding from 1 review

Summary of findings: split‐spinous process 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: split‐spinous process 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 table (sensitivity analysis): interventions esophageal and GE‐junction carcinoma vs gastric carcinoma

Studies with gastric cancer participants in addition to eligible participants · palliative participants with esophageal and GE‐junction carcinoma or gastric carcinoma

Summary of findings table (sensitivity analysis): interventions… showed no clear difference in studies with gastric cancer participants in addition to eligible… compared with gastric carcinoma; GRADE not reported.

1 finding from 1 review