Master proximal humerus fractures by understanding the Neer classification system, critical humeral head blood supplyand the practice-changing PROFHER trial. Learn exactly when to operate and when to manage these common injuries non-operatively. ⏱ Chapters 0:00 Intro 0:19 Essentials 0:50 Neer Classification 1:26 Displacement Criteria 1:59 Blood Supply 2:32 Imaging Signs 3:10 Neer Parts Mnemonic 3:44 Management Algorithm 4:35 Surgical Technique 5:11 Key Numbers 5:49 Clinical reasoning — Manage 6:27 Clinical reasoning — Pearls This comprehensive orthopaedic masterclass provides an in-depth review of proximal humerus fractures. We cover everything from the bimodal epidemiology and essential trauma series radiographs to the four-part Neer classification, vascular anatomy of the arcuate arteryand modern surgical decision-making involving locking plates and reverse shoulder arthroplasty. 🦴 IN THIS VIDEO YOU'LL LEARN • How to apply the Neer classification by counting displaced anatomical parts using the 1cm or 45-degree rule • The precise vascular anatomy of the proximal humerus and why the arcuate artery dictates avascular necrosis risk • How the landmark PROFHER trial fundamentally changed the surgical management of displaced fractures • The muscle forces that displace greater tuberosity, lesser tuberosityand shaft fragments • Why valgus-impacted four-part fractures have preserved blood supply and remain amenable to fixation • How to interpret the trauma series including the true AP Grashey, scapular Yand Velpeau axillary views • The clinical indications for choosing non-operative care, ORIF with locking platesor arthroplasty • Why greater tuberosity displacement of just 5mm threatens rotator cuff mechanics and warrants surgery • How to assess the medial soft-tissue hinge on CT to determine humeral head viability ⏱️ CHAPTERS 📌 KEY TAKEAWAYS ✔️ Eighty-five percent of proximal humerus fractures are minimally displaced and highly successful with non-operative management in a sling. ✔️ A fragment only counts as a separate 'part' if it is translated more than 1cm or angulated beyond 45 degrees. ✔️ Avascular necrosis risk escalates from 3-14% in three-part fractures up to 15-35% in four-part patterns. ✔️ Valgus-impacted four-part fractures preserve the medial hinge and blood supply, making them fixable despite their complexity. ✔️ The PROFHER trial demonstrated no functional difference at two years between operative and non-operative treatment for many displaced fractures. ✔️ Elderly patients with severe displaced patterns or head-split injuries are best managed with reverse shoulder arthroplasty. 👩⚕️ WHO THIS IS FOR This video is designed for orthopaedic trainees, junior doctorsand medical students seeking a comprehensive understanding of shoulder trauma. Curious patients looking for an in-depth, educational perspective on proximal humerus fracture management will also find it highly valuable. 📚 RELATED TOPICS: Shoulder dislocation and glenohumeral instability · Rotator cuff injuries and assessment · Humeral shaft fractures and radial nerve injury · Distal radius fractures in the elderly population · Reverse shoulder arthroplasty biomechanics and indications 🔗 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 #proximalhumerus #shoulderfracture #neerclassification #orthopaedicsurgery #traumasurgery #shouldersurgery #orthoteaching #medicaleducation #fracturefixation #avascularnecrosis #shoulderanatomy