Grigorios Avramidis ORTHOPEDIC SURGEON Deputy Director, 3rd Orthopaedics Department

• European Society of Sports Traumatology Knee Surgery and Arthroscopy (ESSKA), Since 2016
• Hellenic Society of Reconstructive Microsurgery & Surgery of Hand & Upper Limp, Since 2015
• Hellenic Arthroscopic Association, Since 2015
• Hellenic Association of Orthopaedic Surgery and Traumatology, Since 2013
• Member of the International Cartilage Regeneration & Joint Preservation Society (ICRS)
• Member of the Arthroscopy Association of North America (AANA)

• 12/2025-today: Deputy Director, 3rd Orthopaedics Clinic, Hygeia Hospital, Athens, Greece
• 9/2017-12/2025: Consultant, 3rd Orthopaedics Clinic, Hygeia Hospital, Athens, Greece
• 8/2017-today: Private Orthopaedic Clinic, Chalkida Evia
• 5/2015-today: Clinical & Scientific Partner, Center of Arthroscopy & Shoulder Surgery
• 01/2013 – 07/2017: Resident in Orthopaedic Surgery, 3rd Department of Orthopedic Surgery, KAT Hospital, Athens
• 03/2016 – 03/2017: Resident in Pediatric Orthopaedic Surgery, Athens General Children’s Hospital “Pan. & Aglaia Kyriakou
• 09/2015 – 03/2016: Resident in Upper Limp & Microsurgery, KAT Hospital, Athens
• 03/2012 –  01/2013: Resident in Orthopaedic Surgery, General Hospital of Chalkida
• 09/2011 – 03/2012: Scientific Partner, General Hospital of Chalkida
• 09/2009 – 12/2010: Resident in General Surgery, General Hospital of Thiva

Education Experience

• 2016: Instructor in Microsurgical Practice – Nerve and vessel suturing. Laboratory for Research of Musculoskeletal System Disorders “Th. Garofalidis,” Medical School, National and Kapodistrian University of Athens, KAT General Hospital of Athens (Duration: 10 weeks)
• 2019: Instructor in Knee Arthroscopy on cadaveric specimens. 8th Panhellenic Congress of the Hellenic Arthroscopy Society, Knee Surgery and Sports Traumatology “G. Noulis,” Sparta
• 2019: Instructor in Shoulder Arthroscopy on cadaveric specimens. 3rd International Shoulder Seminar “3rd Athens Shoulder Course,” Athens
• 2020: Instructor in Shoulder Arthroscopy on cadaveric specimens. 4th International Shoulder Seminar “4th Athens Shoulder Course,” Athens
• 2022: Instructor in Shoulder Arthroscopy & Rotator Cuff Repair on cadaveric specimens. Advanced Rotator Cuff Course, ATT Center
• 2022: Instructor in Shoulder Arthroscopy on cadaveric specimens. 5th International Shoulder Seminar “5th Athens Shoulder Course,” Athens
• 2023: Instructor in Shoulder Arthroscopy and Shoulder Arthroplasty on specimens. Shoulder Arthrocourse, Munich, Germany
• 2023: Instructor in Shoulder Arthroscopy and Shoulder Arthroplasty on cadaveric specimens. 11th Interbalkan Congress of Arthroscopy, Sports Medicine and Knee & Shoulder Surgery, Ioannina
• 2024: Instructor in Shoulder Arthroscopy on cadaveric specimens. 6th International Shoulder Seminar “6th Athens Shoulder Course,” Athens
• 2025: Instructor in Shoulder Arthroscopy on the topic “Shoulder Instability” on cadaveric specimens. International Seminar of Shoulder Arthroscopy of the Hellenic Arthroscopy Society “Intensive Theoretical & Hands-on Seminar on Shoulder Arthroscopy,” Larissa

Clinical Interest:

• Arthroscopic Surgery
• Shoulder Surgery
• Knee Surgery
• Upper Limp Surgery & Microsurgery

Research Interest: 

• Shoulder Arthroscopy and Shoulder Surgery

• 2017: Presentation Award of Scientific committee, 73^rd EEXOT Congress “Longterm results of Remplissage in treatment of recurrent shoulder instability”, 3^rd Orthopaedic Department, Hygeia Hospital, Athens
• 2016: Visiting Fellowship at Shoulder Surgery Department of Shoulder and Elbow Surgery, Dr. Alessandro Castagna, Humanitas, Milano
• 2016: EFORT Autumn Travelling Fellowship, Poland
• 2016: 1^st FORTE Summer School Portugal, EFORT , Faro
• 2015: Arthroscopy Travelling Fellowship Hellenic Arthroscopic Society

Book chapter in a scientific publication of the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA)
“Rotator Cuff Tear Arthropathy: Where Are the Limits for Repair? Massive and Irreparable Rotator Cuff Tears”
Springer, Berlin, Heidelberg
Antonogiannakis E., Avramidis G.
2020, pp. 111–119

• Avramidis G, Kokkineli S, Trellopoulos A, Natsika M, Brilakis E , Antonogiannakis E. Excellent clinical and radiological mid-term outcomes for the management of recurrent anterior shoulder instability by all-arthroscopic modified Eden-Hybinette prosedure using iliac crest outograft and double pair of button fixation system: “three-year clinical case series with no loss to follow up.” Arthroscopy. 2021 Mar;37(3):795-803. doi: 10.1016/j.arthro.2020.10.036. Epub 2020 Oct 27. 
• Malahias MA, Brilakis E, Avramidis G, Trellopoulos A,  Antonogiannakis E.  Arthroscopic partial repair with versus without biodegradable subacromial spacer for patients with massive rotator cuff tears: a case-control study. Musculoskeletal Surgery 2020;1-9. doi: 10.1007/s12306-020-00649.
• Malahias MA, Sarlikiotis T, Brilakis E, Gerogiannis D, Avramidis G, Antonogiannakis E. The clinical outcome of the ‘Surgilig’ technique for the reconstruction of acromioclavicular dislocatons: A systemic review. Journal of Orthopaedics. 2020;18:126-131.  doi: 10.1016/j.jor.2019.09.011 
• Brilakis E,  Malahias MA, Patramani M,  Avramidis G, Gerogiannis D, Trellopoulos A, Antonogiannakis E. All-Arthroscopic McLaughlin’s Procedure in Patients with Reverse Hill–Sachs Lesion Caused by Locked Posterior Shoulder Dislocation. Joints 2019 doi: 10.1055/s-0039-3401820 
• Avramidis G, Trellopoulos A, Brilakis E, Antonogiannakis E.Arthroscopic repair of massive rotator cuff tears an effective and safe treatment option. Acta Orthopaedica Et Traumatologica Hellenica. 2019;70(1): 14-18 
• Avramidis G, Brilakis E,Deligeorgis A. Antonogiannakis E.  All-Arthroscopic Treatment of Glenoid Rim Fractures. Arthroscopy Techniques.2019;8(10):e1121-e1124 doi: https://doi.org/10.1016/j.eats.2019.05.030
• Trellopoulos A, Angelis S, Komnos G, Avramidis G, Gikas E. Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication. ureus. 2019 Sep 2;11(9):e5556.  doi: 10.7759/cureus.5556. 
• Malahias MA, Avramidis G, Brilakis E, Trellopoulos A, Antonogiannakis E. Non-anatomic arthroscopic repair of massive rotator cuff tears versus anatomic complete arthroscopic repair: a case-control study.  Musculoskeletal Surgery. 2019;30. doi: 10.1007/s12306-019-00611-4. 
• Malahias MA, Kostretzis L, Chronopoulos E, Brilakis E, Avramidis G, Antonogiannakis E. Arthroscopic partial repair for massive rotator cuff tears: does it work? A systematic review. Sports Medicine. 2019;5(1):13 doi: 10.1186/s40798-019-0186-z. 
• Malahias MA, Brilakis E, Avramidis G, Antonogiannakis E. Satisfactory mid-term outcome of subacromial balloon spacer for the treatment of irreparable rotator cuff tears. Knee Surgery, Sports Traumatology, Arthroscopy. 2019: 1–7. doi: 10.1007/s00167-019-05485-4 
• Malahias MA, Brilakis E, Chytas D, Gerogiannis D, Avramidis G, Antonogiannakis.  Functional Outcomes of Bilateral Reverse Total Shoulder Arthroplasty: A Systematic Review.E.Joints. 2021 Jun 18;7(4):188-198. doi: 10.1055/s-0041-1730974. eCollection 2019 Dec. 
• Brilakis E, Avramidis G, Malahias MA, Stathellis A, Deligeorgis A, Chiotis I, Mataragas E, Chronopoulos E, Antonogiannakis Long-term outcome of arthroscopic remplissage in addition to the classic Bankart repair for the management of recurrent anterior shoulder instability with engaging Hill-Sachs lesions.E.Knee Surg Sports Traumatol Arthrosc. 2019 Jan;27(1):305-313. doi: 10.1007/s00167-018-5261-3. Epub 2018 Oct 29.PMID: 30374572