Why Your Finger Locks and Clicks — Trigger Finger Explained ⏱ Chapters 0:00 Intro 0:50 The Size Mismatch 1:21 The pulley map 1:46 The numbers 2:14 Grade It, Prove It 2:50 The grade decides 3:20 When it is not trigger finger 3:54 Shrink It Or Open It 4:34 The sheath, not the tendon 5:15 Ten minutes, wide awake 5:47 What lasts 6:24 Recap & sources The A1 pulley, the Green grades, and the inject-or-release decision In this OrthoVellum master lecture • A1 pulley stenosis: nodule catches, thumb and ring lead • Green grades 1–4 set splint, injection, or release • Inject the sheath, never the tendon; repeat at most once • Divide A1 completely; A2 and A4 are never released • Diabetics: a third succeed — offer surgery sooner • 56% recur, 18% need surgery; children resolve alone Full clinical topic and references: https://orthovellum.com/topics/trigger-finger Image credits • Jengojan S et al. (PMC11480152) — CC BY 4.0 — https://pmc.ncbi.nlm.nih.gov/articles/PMC11480152/ • Lee YK et al. (PMC4616507) — CC BY 4.0 — https://pmc.ncbi.nlm.nih.gov/articles/PMC4616507/ • Sederberg M et al. (PMC11889526) — CC BY 4.0 — https://pmc.ncbi.nlm.nih.gov/articles/PMC11889526/ • Mafi P et al. (PMC12455252) — CC BY 4.0 — https://pmc.ncbi.nlm.nih.gov/articles/PMC12455252/ • Ryskalin L et al. (PMC12843178) — CC BY 4.0 — https://pmc.ncbi.nlm.nih.gov/articles/PMC12843178/ Educational only — not individual medical advice. #orthopaedics #orthopedics #medicaleducation #orthovellum Orthovellum.com