Master the diagnosis and management of mallet finger, the classic Zone I extensor tendon injury. Learn the critical 6-8 week splinting protocol, the Doyle classificationand the surgical indications every clinician needs to know. ⏱ Chapters 0:00 Intro 0:23 Essentials 1:20 Classification 2:05 Anatomy 2:47 Swan Neck 3:22 Surgical Indications 3:55 Imaging 4:40 Differential 5:17 Algorithm 6:09 Ishiguro 6:48 Outcomes 7:25 Clinical reasoning — Chronic 7:56 Clinical reasoning — Bony This OrthoVellum masterclass provides a comprehensive deep dive into mallet finger injuries. We cover the underlying anatomy of the extensor apparatus, mechanism of injuryand the Doyle classification system. The video heavily emphasises clinical decision-making, specifically how to differentiate stable injuries that require strict continuous extension splinting from complex cases demanding surgical intervention like Ishiguro extension block pinning. 🦴 IN THIS VIDEO YOU'LL LEARN • How to classify mallet finger injuries using the Doyle classification system • The strict 6 to 8 week continuous extension splinting protocol and patient education • Identifying surgical indications using the LOSS mnemonic • The anatomical mechanism of swan neck deformity secondary to chronic mallet finger • Recognising and managing the paediatric Seymour fracture • How to perform and understand the principles of Ishiguro extension block pinning • Differentiating tendinous mallet from differentials like jersey finger and sagittal band rupture • Evaluating radiographs to determine articular fragment size and volar subluxation ⏱️ CHAPTERS 📌 KEY TAKEAWAYS ✔️ Splint first: almost all closed mallet injuries, including bony mallets, are treated with continuous extension splinting. ✔️ A single episode of DIPJ flexion during the splinting period completely resets the 6-8 week healing clock. ✔️ Volar subluxation of the distal phalanx or a large fracture fragment indicates an unstable joint requiring surgery. ✔️ Splint fit is crucial; dorsal skin necrosis is the most common complication of tight splints. ✔️ A residual extensor lag of less than 10 degrees is an excellent, highly functional outcome. 👩⚕️ WHO THIS IS FOR This video is designed for orthopaedic trainees, medical students, junior doctorsand hand therapists seeking a comprehensive understanding of hand trauma. Curious patients looking to understand their mallet finger diagnosis and treatment may also find it highly informative. 📚 RELATED TOPICS: Zone 1 Extensor Tendon Injuries · Swan Neck Deformity Pathophysiology · Paediatric Phalangeal Fractures · Jersey Finger (FDP Avulsion) · Hand Therapy and Splinting Protocols · Dorsal Hand Anatomy and Extensor Apparatus 🔗 More free orthopaedic teaching at Orthovellum.com — subscribe for weekly videos. 🎨 CREDITS • Original Orthovellum production. ⚠️ DISCLAIMER: Educational only — not individual medical advice. Always consult a qualified clinician for diagnosis and treatment. #orthopaedics #malletfinger #handsurgery #orthovellum #extensortendon #handtrauma #doyleclassification #medicaleducation #splinting #fracturefixation #anatomy #clinicals #bonfracture #surgeon #medicaleducation