Sargis N. Margaryan

Postgraduate Education and Training:
• Postgraduate studies at the National Institute of Health, Ministry of Health of the Republic of Armenia, in two specialties: Oncology and Traumatology & Orthopedics, Yerevan, Armenia, 2001–2004
• PhD defense on the topic: "Surgical Interventions in the Complex Treatment of Bone Metastases", Yerevan, Armenia, 2004
• Clinical residency in Oncology at the Bone Pathology Department of the National Oncology Institute of Armenia, Yerevan, Armenia, 1999–2001
• Yerevan State Medical University named after Mkhitar Heratsi, General Medicine Faculty, Yerevan, Armenia, 1993–1999

Professional Internships and Advanced Training:
• Department of Traumatology and Orthopedics, Saint-Joseph Hospital, Paris, France. Head of Department: Pomme JOUFFROY, 2015
• Department of Traumatology and Orthopedics, CONCEPTION Hospital, Marseille, France. Head of Department: Prof. Philippe CURVALE, 2015
• Department of Orthopedics, Croix-Rouge Hospital, Pavillon Albert Trillat, Lyon, France. Head of Department: Prof. Philippe NEYRET, 2015
• Department of Orthopedics B, COCHIN Hospital, Paris, France. Head of Department: Prof. Philippe ANRACT, 2011–2012

Professional Experience:
• Orthopedic Oncologist, Surgery Department No. 1, Nairi Medical Center, Yerevan, Armenia, 2012–present
• Orthopedic Oncologist, Bone Pathology Department, National Oncology Institute, Yerevan, Armenia, 2010
• Traumatologist-Orthopedist, Department of Orthopedics and Traumatology, Saint Gregory the Illuminator Medical Center, Yerevan, Armenia, 2006–2010
• Traumatologist-Orthopedist, Department of Orthopedics and Traumatology, Central Clinical Military Hospital, Yerevan, Armenia, 2004–2006
• Clinical residency and postgraduate studies at the Bone Pathology Department, National Oncology Center, Yerevan, Armenia, 1999–2004

Scientific Work:
• Author of 21 published articles, most of which were presented at international conferences.

Professional Activities at Nairi Medical Center:
Almost all types of surgeries related to the musculoskeletal system are currently performed at Nairi Medical Center, including:
• Surgical treatment of benign bone tumors and tumor-like lesions using autografts, allografts, and biocomposite materials with fixation via various types of metal implants
• Limb-sparing surgery for malignant bone tumors with resection of affected bone segments and simultaneous reconstruction using custom-made joint and diaphyseal mega-endoprostheses
• Mega-endoprosthetic replacement of the shoulder joint and humerus
• Mega-endoprosthetic replacement of the hip joint and femur
• Custom endoprosthetic replacement of diaphyseal bone defects
• Limb-sparing surgical treatment of soft tissue tumors in the extremities
Also performed are surgeries for limb injuries, elective orthopedic pathologies (endoprosthetic replacement for advanced coxarthrosis and gonarthrosis), and corrective osteotomies for hallux valgus.

Endoprosthetic Systems Used:
For the reconstruction of bone and joint defects, endoprosthetic systems from Zimmer (USA), Beznoska (Czech Republic), Bioimpianti (Italy), and other leading manufacturers are used.