Bhattacharya 2004.

Methods	RCT; matched design in patients with bilateral CTS. The hand with the most severe symptoms was randomly allocated to one of the procedures; after six weeks the other hand was treated with the other procedure.
Participants	Mean age 48 years. 72% female. Mean duration of symptoms 24 months. Clinical CTS. All patients treated bilaterally.
Interventions	(1) Mini open technique with Knifelight instrument (32 patients/hands). (2) OCTR (32 patients/hands).
Outcomes	Symptom relief. Scar tenderness. Grip strength. Return to work.
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk	A ‐ Adequate