Anterior shoulder instability is the most common major joint dislocation, yet deciding between an arthroscopic Bankart repair and a Latarjet procedure remains a complex clinical challenge. This comprehensive orthopaedic masterclass breaks down glenoid bone loss, the on-track off-track conceptand essential pathoanatomy to guide your surgical decision-making. ⏱ Chapters 0:00 Intro 0:24 Essentials 0:59 Classification 1:24 Lesions 2:04 Bone 2:35 Staging 3:04 Isis 3:31 Imaging 4:02 Algorithm 4:34 Bsc 5:00 Numbers 5:37 Clinical reasoning — Young 6:10 Clinical reasoning — Recurrent This video provides a complete, structured framework for understanding traumatic anterior glenohumeral dislocation and subluxation. We explore the critical anatomy of the static and dynamic stabilisers, delve into key lesions like the Bankart tear and Hill-Sachs fractureand explain how to quantify glenoid bone loss using 3D CT reconstruction. By covering decision tools like the BONE mnemonic and the Instability Severity Index Score (ISIS), this masterclass equips you with the knowledge to confidently navigate the management algorithm for shoulder instability. 🦴 IN THIS VIDEO YOU'LL LEARN • How to accurately quantify glenoid bone loss using the best-fit circle method on 3D CT reconstructions • The critical surgical thresholds deciding whether to perform an arthroscopic Bankart repair or a Latarjet procedure • The difference between an on-track and off-track Hill-Sachs lesion using the glenoid track concept • How to reliably identify essential pathoanatomy including Bankart, bony Bankart, ALPSA, HAGLand GLAD lesions • How to calculate and interpret the Instability Severity Index Score (ISIS) to predict recurrence risk • The significance of age as a predictor of recurrence, including the 67% recurrence rate in patients under 20 • The specific radiograph views needed to detect instability, including West Point and Stryker notch views • The BONE mnemonic for remembering the key indicators favouring a Latarjet procedure • The triple effect of the Latarjet procedure: bone block augmentation, conjoint tendon sling effectand capsular repair ⏱️ CHAPTERS 📌 KEY TAKEAWAYS ✔️ Glenoid bone loss greater than 25% absolutely requires a Latarjet or formal bone graft; a simple Bankart repair will fail. ✔️ Age is the strongest predictor of recurrence: patients under 20 have a 67% recurrence rate after a first-time dislocation. ✔️ An off-track Hill-Sachs lesion engages the anterior glenoid rim and requires a Latarjet or remplissage procedure. ✔️ An ISIS score greater than 6 predicts a high recurrence risk with isolated Bankart repair, pushing the indication towards a Latarjet. ✔️ A bony Bankart lesion carries a higher recurrence risk after arthroscopic repair compared to a purely soft tissue labral tear. 👩⚕️ WHO THIS IS FOR This masterclass is designed for orthopaedic trainees, medical studentsand sports medicine clinicians seeking a high-yield, structured understanding of shoulder instability. Curious patients suffering from shoulder dislocations may also find the detailed explanations of surgical decisions highly informative. 📚 RELATED TOPICS: Arthroscopic Bankart Repair Technique and Outcomes · Latarjet Procedure: Surgical Technique and Complications · Remplissage for Engaging Hill-Sachs Lesions · Management of First-Time Shoulder Dislocations in Young Athletes · Static and Dynamic Stabilisers of the Glenohumeral Joint · Glenoid Bone Loss Measurement and the Best-Fit Circle Method 🔗 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 #shoulderinstability #anteriordislocation #bankartrepair #latarjet #hillsachslesion #sportsmedicine #shouldersurgery #orthopedicsurgery #glenoidboneloss #shoulderdislocation #orthoteaching #medicalstudent #surgeoneducation