IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-11-37844 Original Research Paper FUNCTIONAL OUTCOME OF PIRIFORMIS MUSCLE SPARING POSTEROLATERAL APPROACH IN BIPOLAR HEMIARTHROPLASTY:A RETROSPECTIVE STUDY. Nadeem a. Lil Dr. Dr. Arjav R. Patel Dr. Dr. Tirth D. Patel Dr. November 2021 10 11 01 02