Orthopaedic - Orthopaedic Surgeons

Mr. Nikolaos Kalos is an Orthopedic Surgeon and Deputy Director of the 4th Orthopedic Clinic at Metropolitan General in Cholargos. He maintains a private practice in Neo Psychiko.

He is a graduate of the Medical School of the University of Ioannina and completed his specialization at the University Orthopedic Clinic of Ioannina.

He specialized at the Osteoarthritis and Knee Deformities Treatment Center, LKH Stolzalpe - Murau in Austria. In his private practice, he provides a wide range of services, tailored to the individual needs of each patient.

Vamvatsikos Konstantinos is an Orthopedic Surgeon with private clinics in Agios Stefanos and Oropos. After completing his studies, he specialized in Orthopedics at the 5th Orthopedic Clinic of the General Hospital of Attica KAT, in the Spine and Scoliosis Unit. Subsequently, he received further training at Sheffield Hospital in England, focusing on specialized conditions primarily affecting the spine. In his private clinics, he manages all orthopedic conditions, with particular expertise over the past 10 years in the DRX 9000 technology, a digital decompression bed that successfully treats complex spinal disorders such as sciatica, herniated intervertebral discs, and discopathies with high success rates. More than 8,000 cases of complex spinal disorders have been treated using DRX 9000 technology, which is an FDA-certified American innovation also utilized by NASA. Additionally, he operates podology departments offering reflexology sessions, pedobarography, and the fabrication of custom digital technology insoles, as well as departments for acupuncture, ozone therapy, and osteoporosis. Bone density measurements for osteoporosis diagnosis and treatment of arthritis conditions in the knee, shoulder, or hip are also conducted, utilizing collagen infiltration, hyaluronic acid, autologous activated platelet-rich plasma, and stem cell therapies.

Athanasakopoulos Panagiotis is an Orthopedic Surgeon who maintains a private practice in Kalamaria. He is a graduate of the Medical School of Aristotle University of Thessaloniki. He specialized in the Orthopedic Clinic as well as in the Chronic Diseases and Sports Injuries Unit at the General Hospital Agios Pavlos in Thessaloniki. Additionally, he completed training at the Pediatric Orthopedic Clinic of the General Hospital "Gennimatas" and at the 2nd Neurosurgery Clinic of the Hippocrates Hospital of Thessaloniki. For the past 20 years, he has been a Scientific Collaborator at the Agios Loukas Clinic in Thessaloniki. He focuses particularly on sports injuries and arthroscopic surgery of the knee and shoulder, as well as the treatment of trauma and fractures using all modern methods. Finally, he has significant experience in total joint arthroplasty and the management of osteoporosis.

Tasios Nikolaos is an Orthopedic Surgeon with a private practice in Glyfada. He holds a medical degree from Aristotle University of Thessaloniki and specialized in Orthopedics at the Orthopedic Clinic - Hand Surgery Department at Asklipieio Voula. He completed a fellowship as an Orthopedic Surgeon at the Orthopedic Clinic - Knee Disorders and Sports Injuries Department at Erasme University Hospital in Brussels. His practice covers the full spectrum of orthopedic and orthopedic surgical cases, with a specialization in trauma, sports injuries, and hip and knee arthroplasty.

Dr Koukos Xristos is an Orthopedic Surgeon who maintains a private practice in Thessaloniki. He is a former Director of specialized sports injuries at St. Josef Hospital in Wuppertal, Germany. He completed his specialization and sub-specialization entirely in Germany. He undertook advanced training at world-renowned sports injury centers specializing in shoulder and elbow injuries, including: ATOS Klinik München (Prof. Martetschläger, Prof. Tauber), Klinikum Rechts der Isar (Prof. Imhoff), OCC Tübingen (Prof. Kasten), ARCUS Klinik Pforzheim (PD Dr. Burkhart), and AZ Monica Antwerp (Prof. Van Riet). In 2017, he served as Consultant at Sportklinik Duisburg, and in 2018, he was appointed Head of the arthroscopy department at the Evangelical Hospital of Mettmann (EVK Mettmann). In 2022, he assumed the position of Director at St. Josef Hospital in Wuppertal, overseeing 1,700 surgeries annually exclusively related to sports injuries of the knee, shoulder, and elbow. He is a certified trainer of the German Arthroscopic Society (AGA). Additionally, he is a member of the committees of the International Society of Orthopaedic Surgery and Traumatology (SICOT) and the International Society of Arthroscopy, Knee Surgery, and Orthopaedic Sports Medicine (ISAKOS), as well as a member of the European Society of Sports Traumatology, Knee Surgery & Arthroscopy (ESSKA - ESA) committee for shoulder and elbow. He holds international recognition in the field of shoulder and elbow, frequently presenting at international conferences and seminars, and he is one of only 3-4 surgeons worldwide performing arthroscopic reconstruction of the lateral ulnar collateral ligament. His expertise also includes multiligamentous knee injuries, beyond just the cruciate ligaments, as well as knee osteotomies aimed at avoiding arthroplasty in younger patients.

Stathellis Apostolos MD, PhD is an Orthopedic Surgeon - Sports Medicine Specialist with expertise in arthroscopic surgery of the shoulder, knee, elbow, and ankle, as well as sports injuries. He graduated with honors from the Medical School of the National and Kapodistrian University of Athens and holds a PhD from the University of Ulm in Germany. Following an 8-year training period in Germany (2009 - 2016) at one of the leading arthroscopic surgery centers (Sportklinik - Stuttgart), he now maintains private practices in Vrilissia and Marousi and concurrently serves as an Attending Physician at the 3rd Orthopedic Clinic at Hygeia Hospital. In 2016, he obtained the sports medicine specialization title in Germany, as well as certification in arthroscopic surgery. Additionally, he is trained and certified in musculoskeletal ultrasonography.

Dr Penteridis Ioannis is an Orthopedic Surgeon and Pediatric Orthopedist, maintaining a private practice in Oraiokastro. He holds a PhD in Medicine from the "Victor Babes" Medical University. He possesses extensive training and experience, having worked in numerous clinics across the country. Alongside his private practice, he serves as an Orthopedic Surgeon in the infrastructure departments of the PAOK team, at the Medical Diavalkaniko of Thessaloniki, and other private clinics with which he collaborates.

Tsimplakis Mixalis is an Orthopedic Surgeon - Sports Medicine Specialist, Deputy Director of the 8th Orthopedic Clinic at Metropolitan General, and maintains a private practice in Nea Smyrni. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and has received advanced training in Shoulder Arthroscopic Surgery at the 401 General Military Hospital of Athens. He has particular expertise in knee arthroplasty, meniscal arthroscopy, chondropathy arthroscopy, shoulder arthroscopy, osteoporosis management, as well as monitoring kyphosis, scoliosis, and fractures. Additionally, he collaborates with the Medical Center of Palaio Faliro, BioClinic of Piraeus, and Doctors Hospital. Finally, the physician has contributed to scientific publications both in Greece and internationally.

Aleksiou Spyros is an Orthopedic Surgeon with a private practice in Ampelokipoi. He graduated from the Medical School of Debrecen University and specialized in Orthopedic Surgery at the General Hospital of Ioannina "Hatzikosta". He has extensive experience in both the public and private sectors, having served as a consultant at "Hatzikosta" Hospital and since 2018 maintaining a private practice in Ioannina, offering a specialized program of surgical procedures and advanced therapies. His professional activity focuses on hip and knee arthroplasties (primary and revision surgeries), sports injuries, deformities of the forefoot, and minimally invasive endoscopic spinal techniques. Additionally, he applies non-radiological methods for the evaluation of spinal deformities and provides modern biological treatments such as PRP and stem cell injections for tendinopathies and osteoarthritis. He has attended numerous postgraduate seminars and workshops in Greece and abroad (Germany, France, Italy, Belgium, Poland), and is a certified user of robotic and percutaneous techniques, including the OrthoAlign, Spine Tip, and Pecaplasty systems. He has presented scientific papers at conferences in Greece and Europe and maintains a consistent presence in the advancement of the field through continuous education with an emphasis on patient-centered care.

Zografidis Aleksandros is an Orthopedic Surgeon specializing in Orthopedics and maintains a private practice in Paleo Faliro. He studied Medicine at the "La Sapienza" University of Rome. Subsequently, he trained in Orthopedics at the General Hospital "Asklipieio" of Voula, in Pediatric Orthopedics at the General Hospital of Piraeus "Tzaneio", in General Surgery at the General Hospital "Asklipieio" of Voula, in Plastic Surgery at the Anti-Cancer Hospital of Piraeus "Metaxa", and in Thoracic Surgery at the 1st Thoracic Surgery Clinic of the General Hospital for Thoracic Diseases "Sotiria". Additionally, he has served as the Director of the Orthopedic Department at the "Bioclinic" of Piraeus, and currently works at the Athens General Clinic and the Modern Private Multipractice "Medifirst". In the past, he was the team physician for the PAE Panionios football club, participating in the preparation and many matches of the team, both in the Greek Championship and the UEFA Cup, as well as the physician for SEGAS, participating in numerous Pan-Hellenic and Pan-European events with the National Track and Field Team. Finally, the doctor is specialized in Sports Injuries, Arthroscopic surgery of the knee and shoulder, and Pediatric Orthopedics.

Athanasopoulos Konstantinos MD, MSc is an Orthopedic Surgeon maintaining private practices in Piraeus and Galata Troizinia, while also collaborating with the Athens Medical Group (Peristeri clinic) and the sports injury center at Mediterraneo Hospital. He is certified in robotic knee and hip arthroplasty using the most advanced robotic system worldwide, the only one with FDA certification in the USA for robotic total joint revision arthroplasty. He holds a postgraduate degree in “Metabolic Bone Diseases” from the Medical School of Athens and graduated in Medicine from the University of Medicine and Pharmacy "Carol Davila". He specialized in Orthopedics and Traumatology at the General Hospital of Piraeus “Tzaneio” and in Pediatric Orthopedics at the Children’s Hospital "P. & A. Kyriakou", and after successful examinations where he ranked first in Attica, he obtained the title of orthopedic specialty. He served as an instructor at the Special Training Center for Health Professionals in the Orthopedics and Traumatology department of the General Hospital of Piraeus "Tzaneio" regarding the implementation of a preventive screening program for scoliosis and other spinal deformities in students. Additionally, he has participated as a speaker and trainee in numerous conferences and seminars in Greece. His areas of expertise include arthroscopic surgery, robotic knee and hip arthroplasty, as well as robotic knee and hip revision surgery with Fast-Track ERAS protocols for rapid return to activities, and minimally invasive surgery.

Dr. Nikolaos Tzinieris, MD, MSc, FMH, is an Orthopedic Surgeon who maintains private practices at Mavili Square and in Peristeri. He is the Director of the 2nd ORTHOPEDIC CLINIC - Upper Limb, Hand, and Microsurgery Clinic at the "Errikos Dynan" Hospital Center. He graduated from the Medical School of the National and Kapodistrian University of Athens. During his specialty training, he was also trained at the University Clinic of Hôpital Orthopédique in Lausanne and subsequently was appointed as Assistant Consultant B’ at the Upper Limb-Hand and Microsurgery Clinic of KAT Hospital. He completed his subspecialty training in Upper Limb and Spine Surgery at the University Hospital of Lausanne and served as Consultant at the University Hand and Microsurgery Surgical Clinic Longeraie in Lausanne and at the CH8 Clinic in Geneva, while simultaneously working at major private medical centers in French-speaking Switzerland. Upon returning to Greece, he collaborated with his mentor, N. Gerostathopoulos, and together they established the 2nd Orthopedic Clinic of Errikos Dynan Hospital, assembling an exceptionally esteemed team of experienced and accomplished associates. To this day, he continues to collaborate with surgical centers in Switzerland. Throughout his career, he has delivered numerous lectures and presentations at Greek and international conferences and serves as an instructor in postgraduate training seminars. He also holds a Master's degree, has an extensive number of publications, and is a member of the Swiss Society of Orthopedic Surgeons, the Swiss Medical Association, the American Association for Hand Surgery (AAHS), and the American Spine Surgery Society.

Ο Λεωνίδου Ανδρέας PGDip, MSc, PhD, FACS, FRCS (Tr&Orth) είναι Ορθοπαιδικός Xειρουργός - Τραυματολόγος και Διδάκτωρ στο Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης με ιδιωτικό ιατρείο στο Μαρούσι. Παράλληλα, διατελεί Διευθυντής στο Ιατρικό Κέντρο Αθηνών στο Μαρούσι. Είναι απόφοιτος της Ιατρικής Σχολής του Εθνικού & Καποδιστριακού Πανεπιστημίου Αθηνών και έχει ολοκληρώσει μεταπτυχιακές σπουδές στην Ορθοπαιδική Μηχανική στο Πανεπιστήμιο του Cardiff. Μετά την αποφοίτησή του ξεκίνησε να εργάζεται στο Ηνωμένο Βασίλειο, όπου κάτω από διαρκή αξιολόγηση, τακτικές εξετάσεις και συνεντεύξεις, ολοκλήρωσε την ειδικότητα της Ορθοπαιδικής και Τραυματολογίας. Είναι εξειδικευμένος Χειρουργός άνω άκρου, γόνατος και αθλητικών κακώσεων και έχει ολοκληρώσει όλη την ειδικότητα και την υπερεξειδίκευση στο ειδικό γνωστικό αντικείμενό του στην Αγγλία. Μετά το πέρας της ειδικότητας, εξειδικεύτηκε στην παγκοσμίου φήμης Κλινική Ώμου - Αγκώνα στο Reading. Εργάσθηκε δε ως Διευθυντής στην ίδια κλινική και εν συνεχεία στο Πανεπιστημιακό Νοσοκομείο του East Kent. Εργάσθηκε συνεχόμενα στο Ηνωμένο Βασίλειο από το 2005 έως το 2019 αποκτώντας τεράστια χειρουργική εμπειρία. Διαθέτει αναλυτικό - πιστοποιημένο logbook πλέον των 6000 χειρουργείων. Επιστρέφει στην Ελλάδα μετά από 14 χρόνια παραμονής στο Ηνωμένο Βασίλειο, έχοντας αφυπηρετήσει στην υψηλότερη βαθμίδα του μόνιμου Διευθυντή (substantive Consultant), με στόχο να παρέχει στους ασθενείς του τις πιο σύγχρονες τεχνικές διάγνωσης και θεραπείας με βάση τα διεθνή πρότυπα. Ασχολείται με όλο το φάσμα της τραυματολογίας με εξειδίκευση στην αντιμετώπιση των σύνθετων καταγμάτων του ώμου - αγκώνα. Επίσης, εξειδικεύεται στην αρθροσκόπηση ώμου - αγκώνα και γόνατος με μεγάλη χειρουργική εμπειρία και όγκο περιστατικών. Εφαρμόζει το ελάχιστης επεμβατικότητας σύστημα ανάστροφης αρθροπλαστικής ώμου χωρίς stem. Είναι εταίρος (fellow) του Βασιλικού Κολλεγίου των Χειρουργών του Εδιμβούργου, έχοντας ολοκληρώσει με επιτυχία τις σχετικές εξετάσεις. Επιπλέον, είναι εκπαιδευτής στο Advanced Trauma Life Support Course και στο παγκοσμίου φήμης Reading Shoulder and Elbow Course. Ταξιδεύει συχνά στην Ευρώπη όπου διδάσκει την τεχνική της ανάστροφης αρθροπλαστικής ώμου χωρίς stem. Την περίοδο 2017 - 2019 ήταν ο πρώτος Έλληνας που εκλέχτηκε μέλος της Εκπαιδευτικής Επιτροπής της Βρετανικής Εταιρίας Ώμου - Αγκώνα. Tέλος, τo 2020 εκλέχτηκε στην επιτροπή μελών της Ευρωπαϊκής Εταιρίας Ώμου - Αγκώνα.

Dr. Sarantis Mixalis, MD, MSc, PhDc, is an Orthopedic Surgeon with a private practice in Psychiko. Concurrently, he serves as an Orthopedic Consultant specializing in Sports Injuries at Metropolitan Hospital. He has extensive experience, having completed his specialization at the General Children's Hospital "Agia Sofia" and the 4th Orthopedic Clinic of G.N.A. KAT, while also specializing at the same hospital in the Hand-Upper Limb-Microsurgery Clinic, the Sports Injuries Department, and the Pediatric Orthopedic Clinic. In 2018, he successfully completed advanced training in pediatric orthopedic trauma and pediatric skeletal deformities at the Orthopedic Hospital Speising (Vienna, Austria). Since 2019, he holds a Master's degree in "Metabolic Bone Diseases - Osteoporosis" from the Medical School of the National and Kapodistrian University of Athens. In 2020, he was appointed as a doctoral candidate by the Medical School of Athens, and since then he has been pursuing his doctoral thesis at the 2nd Orthopedic University Clinic of the University of Athens (Konstantopouleio Hospital – Agia Olga). He is an active member of the European Paediatric Orthopaedic Society (EPOS), the European Society for Sports Traumatology Knee Surgery and Arthroscopy (ESSKA), the Hellenic Society of Orthopaedic Surgery and Traumatology (EEHOT), and the Athens Medical Association. Finally, he has a rich academic portfolio, authoring numerous publications in peer-reviewed international journals (PUBMED) and actively participating in presentations at Greek and international conferences.

Pathiakis Ioannis Md, MSc, PhD is an Orthopedic Surgeon who maintains a private practice in Peristeri. He holds a medical degree from the Medical School of the National and Kapodistrian University of Athens and has obtained two postgraduate degrees in "Minimally Invasive Surgery, Robotic Surgery & Tele-surgery Medicine" and "Surgical Anatomy" from the Medical School of the same university. Additionally, he holds a Doctorate from the National and Kapodistrian University of Athens in the Department of Anatomy. He is specialized in Robotic Knee and Hip Surgery and in Microsurgical Bloodless Carpal Tunnel Release and holds a diploma in Medical Acupuncture from the Scientific Association of Medical Acupuncturists of Greece. He has completed training at numerous hospitals, while his specialty was completed in General Surgery at the General Hospital of Ierapetra. Furthermore, during his career, he has taught courses on First Aid, Traumatology, and musculoskeletal injuries at the IEK of Siteia and at the Volunteer Corps of Samaritans and Rescuers of Siteia, respectively. Finally, as part of his continuous education and updating in microsurgery and medical acupuncture, the physician regularly attends medical conferences, earning personal honorary distinctions.

Beyond Medicine, he holds a degree in Social Theology from the Theological School of Athens.

Kaldis Panagiotis is an Orthopedic Surgeon specializing in Upper Limb Surgery and Reconstructive Microsurgery. He graduated from the Medical School of the National and Kapodistrian University of Athens. Alongside his private practice in Pallini, he works as Deputy Director in the B' Department of Hand Surgery and Microsurgery at Hygeia Hospital, where he manages complex hand and shoulder injuries. He is a member of prominent medical associations, including the Athens Medical Association, the Hellenic Society of Surgery, Orthopedics, and Traumatology (HECOS), the Hellenic Society of Hand and Upper Limb Surgery (HEHUS), the Society of Reconstructive Microsurgery (SRM), and the International Wrist Arthroscopy Society (IWAS).

In his private practice, he treats conditions across the full spectrum of orthopedics and provides specialized services tailored to the individual needs of his patients.

Dr. Trellopoulos Aggelos is an Orthopedic Surgeon who maintains two private clinics in Zografou and Marousi. He holds a Medical Degree and a postgraduate degree in Metabolic Bone Diseases from the National and Kapodistrian University of Athens. He specializes in Arthroscopic Surgery, Arthroplasty & Robotic Arthroplasty, Hand Surgery - Microsurgery, and Sports Injuries. He is a Consultant at the Third Orthopedic Clinic of "Hygeia" Hospital and at the Athens Center for Arthroscopy and Shoulder Surgery. He is a member of the European Society of Sports Traumatology (ESSKA), from which he has received educational fellowships aimed at specializing in athlete injuries. Finally, he is an active member of Greek and international scientific associations, has published numerous scientific articles and papers in Greek and international journals, and has delivered lectures at Greek and international sports medicine conferences.

Makris Xaris is an Orthopedic Surgeon specializing in Orthopedics and maintains a private clinic in Nikaia. He specialized in Orthopedics & Traumatology at the Orthopedic Clinic of the University of Ioannina, where he had previously trained in General Surgery and obtained his Medical degree. Additionally, he was a Clinical Fellow at the Sports Traumatology and Joint Surgery Center of ATOS KLINIK, focusing primarily on knee surgery, ligament injuries, and arthroscopic surgery. Concurrently, he was a Research Fellow at the Immunology Laboratory of Ruprecht-Karls University in Germany, participating in the research program "Quantitative determination of cytokines in the synovial fluid of patients with anterior cruciate ligament rupture, as a prognostic factor for the future development of osteoarthritis." Notably, he was the first orthopedic specialist fellow at ATOS KLINIK and Karl Ruprecht University in Germany. Furthermore, he is a founding member of the Hellenic Arthroscopy Society and a member of the Hellenic Society of Orthopedic Surgery & Traumatology (HSSOT), the Hellenic Society of Reconstructive Microsurgery (HSRM), the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA 2000), and the International Cartilage Repair Society (ICRS). Lastly, he has participated in numerous educational scientific conferences and seminars, many of which he attended as an instructor.

Dempegiotis Petros MD, MSc is an Orthopedic Surgeon with a private practice in Kypseli. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and has attended numerous international educational seminars. He is also a certified physician in Neural Therapy. He is an affiliated physician at Euroclinic Athens, Doctor's Hospital, and Metropolitan General. With extensive experience in orthopedic disorders, he diagnoses and treats orthopedic conditions in both adults and children. Additionally, he manages cases such as tendinitis, osteoarthritis, cervical syndrome, sciatica, as well as pediatric orthopedics.

Georgios Koufopoulos is an Orthopedic Surgeon with private practices in Peristeri and Haidari. He holds a Doctorate in Medicine from the National and Kapodistrian University of Athens and has completed advanced training in "Total Hip Arthroplasty with Anterior Minimally Invasive Approach (AMIS)" at the University of Texas Health Science Center in Texas, USA. Dr. Koufopoulos specializes in arthroplasty and has considerable experience in sports injuries and robotic surgery. He manages cases such as kyphosis, fractures, scoliosis, and spondylolysis–spondylolisthesis. Additionally, he actively participates in conferences and seminars that enable him to stay continuously updated in his field and provide the highest quality care to his patients. Finally, he is a member of the Hellenic Society of Orthopedic Surgery and Traumatology and the Hellenic Arthroscopic Society.