IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-13-1-54175 Original Research Paper Effect Of Hip And Knee Flexion On The Segmental Spread Of Subarachnoid Block In Poliomyelitis Patients With Scoliosis After Giving Spinal Anaesthesia - A Case Control Study. Ballarapu Girija Kumari Dr. Dr P Kishore Kumar Dr. Dr Koramutla Pradeep Kumar Dr. January 2024 13 1 01 02