Tüzüner 2008.
| Methods | Single centre RCT measuring the excursion of median nerve before and after the release (anatomical study) | |
| Participants | 16 hands in 13 participants with idiopathic primary CTS unresponsive to conservative care were included. The intervention was ECTR in 8 hands (7 participants) and OCTR in 8 hands (6 participants). 1 participant had bilateral ECTR at the same time. 2 additional participants had bilateral releases, ECTR on one side and OCTR on the other side on a different day. All participants were women, with a mean age of 52 years (range 38 to 60 years) Diagnosis was made clinically and with an electrodiagnostic study |
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| Interventions | 1‐portal ECTR (Menon technique) vs OCTR | |
| Outcomes | Measurements were intraoperative. No follow‐up measurements were conducted Longitudinal excursion and volar displacement of the median nerve were recorded based on continuous fluoroscopic imaging for each wrist during controlled movement from full flexion to full extension. A marker was used to mark the median nerve |
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| Notes | This was an anatomical study None of the outcomes were used in our systematic review |
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| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Low risk | Previously prepared numbered and sealed opaque envelopes were used. This is adequate assuming that there was sequential numbering of the envelopes |
| Allocation concealment (selection bias) | Low risk | Sealed opaque envelopes were used |
| 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 | Low risk | Due to the nature of the study (intraoperative measurements) no participants were lost |
| Selective reporting (reporting bias) | Low risk | All the outcomes were presented adequately |
| Other bias | Low risk | No baseline differences were found regarding the measurements and sex (all were women) The authors declare no benefits in any form related to the study |