Westphal 2000.
| Methods | Single centre RCT | |
| Participants | 35 OCTR, 45 ECTR. No information on age or sex | |
| Interventions | 1‐portal (ENDO‐CARTRIS®) ECTR vs OCTR | |
| Outcomes | Follow‐up at 4 weeks and 3 months Modified SSS, modified FSS, clinical evaluation, numbness, pain, strength, Phalen, Tinel, 2‐point discrimination, EMG |
|
| Notes | ||
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Unclear risk | No information given |
| Allocation concealment (selection bias) | Unclear risk | No information given |
| Blinding of participants and personnel (performance bias) All outcomes | High risk | No information given. Participants and personnel could not be blinded |
| Blinding of outcome assessment (detection bias) All outcomes | High risk | No information given. Participants and personnel could not be blinded |
| Incomplete outcome data (attrition bias) All outcomes | Unclear risk | No information given |
| Selective reporting (reporting bias) | Unclear risk | No P values and SDs of all outcomes |
| Other bias | Unclear risk | No baseline differences. No information given about financial support |