Question: For patients with trigger thumb, is percutaneous release
with steroid injection (PRSI) better than steroid injection (SI) alone for
relieving symptoms?Design: Randomized (unclear allocation concealment), unblinded,
controlled trial with 2-week and 6-month follow-up.Setting: Bangkok, Thailand.Patients: 115 adult patients who had idiopathic trigger thumb
(Quinnell grade 2, 3, or 4) and did not have a history of carpal tunnel
syndrome or trauma. Follow-up was 98% (mean age, 52 yr; 93% women).