Full Book For Web 41 Proceedings S.Z.M.C. Vol: 37(1): pp. 41-46, 2023. PSZMC-875-37-1-2023 1Department of Pulmonology, Shaikh Zayed Hospital, Federal Postgraduate Medical Institute, Lahore Pakistan. 2Department of Surgery, Combined Military Hospital, Sialkot Pakistan. 3Department of Thoracic Surgery, Combined Military Hospital, Multan Pakistan. 4Department of Medicine, University College of Medicine and Dentistry Lahore Pakistan. 5Centre of Excellence in Molecular Biology, University of Punjab, Lahore. 70 1Department of Orthopedics, THQ, Khanewal 2Department of Orthopedics, LGH, Lahore 3Department of Orthopedics, THQ, Ferozwala 4Department of Orthopedics, CMH, Lahore 5Department of Hand & Upper Limb Surgery, CMH, Lahore 6Department of Orthopedics, Al-Rehmat Benevolent Trust 1 1Department of Anatomy, UCMD, University of Lahore, Lahore 2Department of Anatomy, Punjab Medical College, Faisalabad Medical University, Faisalabad 3Department of Medical Education, Pak Red Crescent Medical and Dental College, Lahore p 42 A 5 Year Tertiary Centre Experience of Frequency & Risk Factors Association with Primary and Secondary... 43 A 5 Year Tertiary Centre Experience of Frequency & Risk Factors Association with Primary and Secondary... 44 A 5 Year Tertiary Centre Experience of Frequency & Risk Factors Association with Primary and Secondary... 45 A 5 Year Tertiary Centre Experience of Frequency & Risk Factors Association with Primary and Secondary... . 46 A 5 Year Tertiary Centre Experience of Frequency & Risk Factors Association with Primary and Secondary...