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Prolapse Intervertebral Disc (PIVD) / Herniated disc / Slip disc By – Dr. Narendra Kumar Yadav BPT, MPT (Neurology) Prolapsed disc (commonly called a 'slipped disc'), a disc does not actually 'slip'. What happens is that part of the inner softer part of the disc (the nucleus pulposus) bulges out (herniates) through a weakness in the outer part ( annulus fibrosus .) of the disc. A PIVD /prolapsed disc is sometimes called a herniated disc It has four stages- 1. Bulging 2. Protrusion 3. Extrusion 4. Sequestration Types of herniation 1. Central 2. paramedial 3. Lateral What causes a PIVD? 1. Heavy manual labour 2. Repetitive lifting and twisting 3. Postural stress 4. obesity 5. Poor and inadequate strength of the trunk 6. Sitting for long hours 7. increasing age (a disc
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