01/08/08–19/10/09 - Senior Resident, Dept. of Orthopaedics Indira Gandhi Govt .General Hospital and Post Graduate Institute , Puducherry , India.
22/10/09 –15/02/12 - Deputy Medical Officer in Dept. of Orthopaedics,General Hospital,Neyveli Lignite Corporation Limited,Tamil Nadu.
27/02/12-30/06/2015- Registrar,Dept. of orthopaedics, Apollo Hospital,BhubaneswarOdisha, India.
01/07/2015-Till date -Junior Consultant , Dept. of orthopaedics, Apollo Hospital,Bhubaneswar Odisha, India.
Research and Publications
Sanjeev Patnaik,1 Biswaranjan Nayak,2 Laxmikanta Mishra,1 and Akshaya Kumar Sahoo3.Complex Primary Total Knee Replacement (TKR) Using Prophylactic Gastrocnemius Flap and Rotating-Hinge Knee in Post-traumatic, Infective Arthritis of the Knee – A Case Report. J Orthop Case Reports. 2015 Oct-Dec; 5(4): 40–43.
Patnaik S1, Nayak B1, Sahoo AK1, Sahu NK1. Minimally Invasive Total Hip Replacement in an Ipsilateral Post-traumatic above-kneeAmputation: A Case Report. J Orthop Case Rep. 2017 Mar-Apr;7(2):3-6. doi: 10.13107/jocr.2250-0685.722.
Clinical and research Fellowship in primary and revision hip and knee arthroplasty, complex trauma from July 2014 to Sept 2014 at Korea University Medical Center, Seoul (South Korea).