Saw 2003.

Methods	RCT; patients with bilateral CTS (n = 27; 22%) had their releases sequentially with the more affected hand first. Once these patients felt that they could use the operated hand normally they underwent the second procedure (shortest interval between the two procedures 7 months).
Participants	Mean age 54 (15) and 50 (15) years. 73% female. Clinical CTS, idiopathic CTS.
Interventions	(1) ECTR: one‐portal Agee technique (74 hands). (2) OCTR (76 hands).
Outcomes	Symptom severity score. Functional status score. Grip strength. Sick leave.
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk	A ‐ Adequate