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. 2007 Oct 17;2007(4):CD003905. doi: 10.1002/14651858.CD003905.pub3

Helm 2003.

Methods RCT
Participants Mean age 54 (35 to 87) and 52 (29 to 77) years. 61% female. Mean duration of symptoms 31 (4 to 120) and 36 (10 to 240) months.
Interventions (1) Mini open technique with Knifelight instrument (39 patients).
 (2) OCTR (43 patients).
Outcomes CTS symptoms.
 Return to work.
 Complications.
Notes  
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment (selection bias) Unclear risk B ‐ Unclear