Cauda equina syndrome is the ultimate spinal emergency, demanding immediate recognition and decisive surgical action. In this Orthovellum masterclass, we cover everything you need to know about this time-critical condition, from identifying red flags to emergency MRI protocols. ⏱ Chapters 0:00 Intro 0:18 Essentials 0:45 Classification 1:09 Redflags 1:35 Innervation 1:57 Examination 2:21 Differential 2:47 Algorithm 3:14 Numbers 3:49 Clinical reasoning — Manage 4:15 Clinical reasoning — Pearls This video provides a comprehensive, in-depth guide to cauda equina syndrome (CES), exploring the anatomy, clinical red flagsand the critical medico-legal importance of meticulous documentation. We dive deep into the Gleave and Macfarlane classification (CES-I vs CES-R), explaining why distinguishing between incomplete and retention stages is prognostically vital. We also cover the mandatory clinical assessment, key differential diagnoses including conus medullaris syndromeand the uncompromising surgical management pathway required to prevent permanent bladder, boweland sexual dysfunction. 🦴 IN THIS VIDEO YOU'LL LEARN • How to reliably identify the clinical red flags of cauda equina syndrome, including bilateral sciatica and saddle anaesthesia • The critical prognostic difference between CES-I (incomplete) and CES-R (retention) using the Gleave and Macfarlane classification • Why understanding S2-S4 sacral innervation is the key to recognising early bladder and sphincter dysfunction • How to perform and document the mandatory clinical assessment, including digital rectal examination and post-void residual bladder scans • The role of emergency MRI as the gold standard investigation and the 48-hour surgical decompression window • How to differentiate true compressive cauda equina syndrome from mimics like conus medullaris syndrome and scan-negative functional cases • The meaning of critical prognostic statistics, including why 60-70% of emergency scans are negative and the rates of permanent dysfunction • The acute surgical management pathway, from keeping the patient nil by mouth and catheterisation to wide decompressive laminectomy ⏱️ CHAPTERS 📌 KEY TAKEAWAYS ✔️ Bilateral sciatica, bladder dysfunctionand saddle anaesthesia mean cauda equina syndrome until proven otherwise. ✔️ Loss of bladder sensation is often the earliest warning sign of autonomic dysfunction in CES-I. ✔️ A post-void residual volume greater than 500ml is highly predictive of cauda equina compression. ✔️ It is far better to scan 100 negative MRIs than to miss one positive compressive lesion. ✔️ Urgent decompression is most effective during the CES-I stage; once CES-R is established, permanent dysfunction is highly likely. 👩⚕️ WHO THIS IS FOR This masterclass is designed for orthopaedic trainees, junior doctorsand medical students seeking a comprehensive understanding of spinal emergencies. Clinicians managing acute back pain presentations and curious patients wanting to understand the surgical urgency of this condition will also find it highly valuable. 📚 RELATED TOPICS: Lumbar Disc Herniation and Radiculopathy · Conus Medullaris vs Cauda Equina Syndrome · Acute Lower Back Pain Red Flags and Triage · Lumbar Spinal Decompression and Laminectomy Techniques · Post-Operative Spinal Epidural Haematoma Management · Sacral Nerve Roots and Pelvic Floor Innervation 🔗 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. #caudaequinasyndrome #orthopaedics #spinesurgery #spinalcordcompression #emergencymedicine #neurosurgery #backpain #laminectomy #medicaleducation #orthovellum #spine #neurology #surgicalmasterclass