Hip dislocation is a true orthopaedic emergency where every hour counts. This masterclass breaks down posterior and anterior hip dislocations, the critical 6-hour rule for avascular necrosis, sciatic nerve injury patternsand the Pipkin and Thompson-Epstein classification systems that guide surgical management. ⏱ Chapters 0:00 Intro 0:23 Essentials 0:47 Classification 1:11 Pipkin 1:40 Mnemonic Said 2:00 Mnemonic Faber 2:22 Algorithm 2:46 Sciatic 3:16 Open 3:37 Numbers 3:59 Clinical reasoning — Neck 4:22 Clinical reasoning — Loose A comprehensive, clinically-focused walkthrough of traumatic hip dislocations covering mechanism of injury, the SAID and FABER clinical presentations, urgent closed reduction techniques including the Allis and Stimson methodsand the mandatory post-reduction CT scan. It explores associated injuries (femoral head, acetabular posterior wall, femoral neck fractures), the Thompson-Epstein and Pipkin classifications, sciatic nerve examination and prognosisand surgical decision-making including the Kocher-Langenbeck approach and the 40% posterior wall threshold. 🦴 IN THIS VIDEO YOU'LL LEARN • Recognise the mechanism and clinical signs of posterior versus anterior hip dislocations using the SAID and FABER mnemonics • Apply the 6-hour reduction rule and understand how delays drive avascular necrosis risk from 5% to over 40% • Perform and select between the Allis and Stimson closed reduction techniques safely • Interpret post-reduction CT scans to assess concentric reduction, incarcerated fragments, posterior wall and femoral head fractures • Use the Thompson-Epstein classification to stratify posterior dislocations and guide treatment • Apply the Pipkin classification to femoral head fractures and decide between excision, ORIF and arthroplasty • Examine, document and prognosticate sciatic and peroneal nerve injuries before and after reduction • Identify the 40% posterior wall threshold that mandates open reduction and internal fixation • Recognise the femoral neck fracture-dislocation pattern and avoid the trap of attempting closed reduction • Plan the Kocher-Langenbeck surgical approach with safe sciatic nerve handling and knee flexion ⏱️ CHAPTERS 📌 KEY TAKEAWAYS ✔️ Time is hip: reduce within 6 hours to keep AVN risk around 5%; beyond 12 hours it approaches 50% ✔️ Posterior dislocations (90%) present shortened, adducted and internally rotated (SAID); anterior (10%) present abducted and externally rotated (FABER) ✔️ CT after every reduction is mandatory — assess concentricity, incarcerated fragments, head and wall fractures ✔️ The peroneal division of the sciatic nerve is most vulnerable in posterior dislocations; document before and after, most recover by 2 years ✔️ Pipkin I is below the fovea (may be excised), Pipkin II is above (fix), and Pipkin III with a neck fracture carries very high AVN risk ✔️ A posterior wall fracture involving more than 40% of the articular surface is unstable and requires ORIF; a coexisting femoral neck fracture forbids closed reduction 👩⚕️ WHO THIS IS FOR An essential learning resource for orthopaedic trainees, foundation and core surgical doctors, medical students and emergency clinicians managing acute trauma, as well as curious patients and physiotherapists wanting a deep understanding of hip dislocation. 📚 RELATED TOPICS: Avascular necrosis of the femoral head · Femoral neck fractures · Acetabular fractures · Femoral head fractures (Pipkin classification) · Sciatic nerve injury and foot drop · Posterior wall acetabular fracture fixation · Kocher-Langenbeck surgical approach · Dashboard knee injury and PCL rupture · Polytrauma and ATLS principles · Traumatic arthritis of the hip 🔗 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 #hipdislocation #posteriorhipdislocation #anteriorhipdislocation #avascularnecrosis #sciaticnerve #pipkinclassification #thompsonepstein #allistechnique #stimsonstechnique #kocherlangenbeck #femoralheadfracture #orthopaedicmasterclass #orthovellum