Acetabular fractures are high-energy pelvic injuries demanding mastery of the two-column concept, the Judet-Letournel classificationand the radiographic lines that define every pattern. This masterclass walks you through the inverted-Y anatomy, the OAP Judet views, the PAPAT and BATTP mnemonicsand the surgical approaches that follow from column involvement. ⏱ Chapters 0:00 Intro 0:23 Essentials 0:51 Column Concept 1:19 Judet Views 1:45 Classification 2:08 Elementary Mnemonic 2:33 Associated Mnemonic 2:59 Algorithm 3:34 Approaches 3:59 Sciatic Safe 4:23 Numbers 4:49 Clinical reasoning — Manage 5:15 Clinical reasoning — Pearls A comprehensive orthopaedic teaching session on acetabular fracture management — from initial assessment and imaging through to definitive fixation. We cover the six radiographic lines on an AP pelvis, the OAP Judet oblique views, the ten Judet-Letournel patterns (five elementary, five associated), the weight-bearing dome concept, surgical timingand approach selection (Kocher-Langenbeck, ilioinguinal, Stoppa), with emphasis on protecting the sciatic nerve and avoiding the corona mortis. 🦴 IN THIS VIDEO YOU'LL LEARN • Apply the two-column concept and inverted-Y model to acetabular anatomy • Identify all six radiographic lines on an AP pelvis radiograph (iliopectineal, ilioischial, roof, teardrop, anterior and posterior walls) • Order and interpret the three Judet views using the OAP mnemonic (AP, obturator oblique, iliac oblique) • Classify every acetabular fracture using the Judet-Letournel system with the PAPAT and BATTP mnemonics • Recognise the pathognomonic spur sign of a both-column fracture on obturator oblique imaging • Determine when operative fixation is indicated using the 2 mm dome displacement threshold • Select the correct surgical approach (Kocher-Langenbeck, ilioinguinal, Stoppa, extended iliofemoral) based on the fractured column • Protect the sciatic nerve during posterior approaches using the SAFE technique (knee flexion, external rotation) • Identify and manage the corona mortis during anterior approaches to the acetabulum ⏱️ CHAPTERS 📌 KEY TAKEAWAYS ✔️ The acetabulum is an inverted Y with anterior and posterior columns — approach is dictated by which column is fractured ✔️ Posterior wall is the most common acetabular fracture (~25%) and the classic dashboard injury ✔️ The weight-bearing dome (superior 10 cm arc) must be anatomically reduced when displaced more than 2 mm ✔️ Always perform urgent closed reduction of any associated hip dislocation, followed by a mandatory post-reduction CT ✔️ Delay ORIF 3–5 days to let the haematoma organise, unless there is an irreducible dislocation or incarcerated fragment ✔️ Keep the sciatic nerve SAFE — Somatosensory monitoring, Avoid traction, Flex the knee, Externally rotate the hip 👩⚕️ WHO THIS IS FOR Ideal for orthopaedic trainees, registrars and residents managing pelvic and acetabular trauma, medical students building a foundation in musculoskeletal injuryand clinicians seeking a structured refresher on classification and surgical decision-making. Also valuable for interested patients wanting to understand how complex acetabular injuries are assessed and treated. 📚 RELATED TOPICS: Pelvic ring injuries and Young-Burgess classification · Hip dislocation: assessment, reduction and avascular necrosis risk · Surgical approaches to the pelvis: ilioinguinal, Stoppa and Kocher-Langenbeck · Femoral head fractures and Pipkin classification · Per acetabular fractures and geriatric pelvic trauma · Sciatic nerve injury following posterior hip dislocation 🔗 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 #orthopaedictrauma #acetabularfractures #acetabulum #judetletournel #pelvicsurgery #traumasurgery #hipfracture #fractureclassification #surgicalapproaches #orthopaedicresident #medicaleducation #radiography #orthovellum