Orthopaedic - Orthopaedic Surgeons

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.

Ο Μάζης Γεώργιος είναι Διευθυντής Ορθοπαιδικός Χειρουργός, υπεύθυνος του τμήματος Χειρουργικής Άνω Άκρου (Ωμού & Αγκώνα) στην Ευρωκλινική Αθηνών. Επίσης, εργάζεται στο Ιατρικό Π. Φαλήρου ως υπεύθυνος του τμήματος Χειρουργικής Άνω Άκρου (Ωμού & Αγκώνα) και Άκρας Χειρός ενώ παράλληλα είναι συνεργάτης του Τμήματος Χειρουργικής Άνω Άκρου και Άκρας Χειρός στην Ορθοπαιδική Κλινική «OSTEON» στο Ιατρικό Αθηνών.

Ο κ. Μάζης κατέχει την θέση του Διευθυντή Ορθοπαιδικού Χειρουργού (Consultant Orthopaedic Surgeon) από τον Ιανουάριο 2017 στο Πανεπιστημιακό Νοσοκομείο Queen's NHS Barking, Havering and Redbridge, του Λονδίνου. Διδάκτωρ της Ιατρικής σχολής του Πανεπιστημίου Αθηνών (ΕΚΠΑ) από τον Ιανουάριο του 2014 (PhD degree) με βαθμό «Άριστα». Έγινε, κατόπιν εξετάσεων, “Fellow of European Board of Orthopaedics and Traumatology” τον Οκτώβριο 2014. Από τον Οκτώβριο του 2016 είναι εξεταστής (examiner) στο Queens Hospital Clinical FRCS (Orth) Course. Τον Ιανουάριο του 2011 έλαβε το μεταπτυχιακό τίτλο σπουδών (Master of Science, MSc) με θέμα «Μεταβολικά Νοσήματα των Οστών» μετά από διετή παρακολούθηση και παρουσίαση διατριβής με βαθμό «Άριστα». Είναι απόφοιτος της Ιατρικής Σχολής Αθηνών (2003 – Εθνικό Καποδιστριακό Πανεπιστήμιο Αθηνών) Από το 2012 αφοσιώθηκε στο ιδιαίτερο γνωστικό του αντικείμενο, τη Χειρουργική Άνω Άκρου και Άκρας Χειρός, καθώς και στις αρχές της ιατρικής επιστήμης και ηθικής, έχοντας στοχευμένη μετεκπαίδευση σε κορυφαία κέντρα του Ηνωμένου Βασιλείου. Διετέλεσε έμμισθος κλινικός υπότροφος (Senior Post CCT Clinical Fellow, 2015) στον τομέα της Χειρουργικής Άνω Άκρου (Upper Limb Surgery ) στο Royal Berkshire Hospital NHS, Reading, Berkshire, UK, υπό την καθοδήγηση του Professor Ofer (εμπνευστής και σχεδιαστής της ανάστροφης ολικής αρθροπλαστικής ώμου VERSO) που μαζί με τον Steve Copeland (εμπνευστής και σχεδιαστής της αρθροπλαστικής ώμου επιφανείας Copeland) αποτέλεσαν πρωτοπόρους στην Χειρουργική του Άνω Άκρου σε παγκόσμιο επίπεδο . Στη συνέχεια, διετέλεσε έμμισθος κλινικός υπότροφος (Senior Post CCT Clinical Fellow, 2016) στο Royal National Orthopaedic Hospital, Stanmore, στον τομέα της Χειρουργικής Άνω Άκρου και σύμπλοκων Αρθροπλαστικών Ώμου και Αγκώνα (Upper Limb and Complex Shoulder and Elbow Arthroplasty Surgery), υπό την καθοδήγηση των Simon Lambert και Ian Bayley (εμπνευστής και σχεδιαστής της ολικής αρθροπλαστικής ώμου Bayley Walker).

Είναι μέλος του British Elbow and Shoulder Society από το 2015. Επιπλέον, είναι μέλος πολλών ελληνικών και ξένων επιστημονικών επιτροπών και οργανώσεων και παραμένει ακαδημαϊκά ενεργός, ως Διδάκτορας του Πανεπιστημίου Αθηνών, έχοντας στο ενεργητικό του πολλαπλές δημοσιεύσεις άρθρων και πρωτοποριακών χειρουργικών τεχνικών σε επιστημονικά περιοδικά και επιθεωρήσεις του εξωτερικού καθώς και συμμετοχή στην συγγραφή αλλά και μετάφραση σύγχρονων συγγραμμάτων Ορθοπαιδικής.

Karagiannis Andreas is an Orthopedic Surgeon and has been providing his services at the Multispecialty Clinic Medical Care Rhodes "KRITO" since 1999. He holds a degree from the Medical School of the National and Kapodistrian University of Athens and received his specialization in Orthopedics from the University Hospital of Crete. Additionally, he is a Scientific Associate of Euromedica Rhodes, as well as a collaborator with numerous international insurance companies and an expert witness for insurance companies in Greece. He deals with the full spectrum of orthopedic conditions, both surgical and non-surgical, with a particular focus on lower limb disorders, gait analysis, and pedobarography for diabetic, neurological, and rheumatoid foot conditions, as well as for pes planovalgus in children and adults. Furthermore, the physician treats tendinitis using extracorporeal shock wave therapy (ESWT) and manages the preoperative treatment of injuries and arthritis employing autologous growth factors, stem cell injections, and hyaluronic acid injections under ultrasound guidance.

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.

Kyrou Georgios is an Orthopedic Surgeon Consultant at the 3rd Orthopedic Clinic of the private hospital Iaso in Marousi, while maintaining a private practice in Kallithea. He has previously served as a specialist and resident physician in some of the most prominent public hospitals in the country, including the General Hospital of Attica “Sismanoglio - Amalia Fleming,” the University General Hospital "Attikon," the General Oncology Hospital of Kifisia (G.O.N.K.), and the General Children's Hospital of Athens "Panagiotis and Aglaia Kyriakou," covering a wide range of pathology and surgical cases. A graduate of the Medical School of the University of Patras, he has actively participated in national and international conferences and possesses experience in a variety of interventional techniques and musculoskeletal system disorders. He has also received additional training through seminars in areas such as upper limb surgery, reconstructive surgery, sports injuries, and traumatology. His clinical and scientific focus is on the optimal, evidence-based, and individualized management of orthopedic conditions, emphasizing functional rehabilitation and the minimization of postoperative complications.

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.

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.

Igglezos Nikolaos is an Orthopedic Surgeon, graduate of the Medical School of Comenius University of Bratislava, and in 2024 he graduated from the Master's Program (MSc) of the National and Kapodistrian University of Athens, specializing in Metabolic Bone Diseases. He maintains an active private collaboration with Metropolitan Hospital, where he also serves as an Attending Physician. Previously, he has worked in the Third Orthopedic Clinic of Athens General Hospital KAT, in the Microsurgery and Hand Surgery Department of KAT, as well as in the Sports Injuries Department of the same hospital, gaining extensive experience in trauma and total knee and hip arthroplasty. He has also worked in the Second Orthopedic Clinic of "Agia Sofia" Children's Hospital as an orthopedic surgeon, at Livadeia General Hospital, and earlier served as a surgical resident in General Surgery at the same hospital. With experience in contemporary orthopedics and an active scientific interest in metabolic bone diseases, he undertakes cases and provides individualized patient care. With a focus on sports injuries and reconstructive orthopedic surgery, he manages conservative treatment using biological therapies with platelet-rich plasma (PRP), as well as surgical repair when conservative treatment is not indicated. Finally, he accepts emergency cases on weekdays and holidays by telephone appointment.

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.

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.

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.

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.

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.

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.

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.

Spyridon Kseinis is an Orthopedic Surgeon maintaining private clinics in Pefki and Psychiko. He is the Deputy Director of the 1st Clinic of Sports Injuries at METROPOLITAN GENERAL and holds a Doctorate from the Medical School of the National and Kapodistrian University of Athens since May 2014, awarded with the grade "Excellent." Since 2008, he has collaborated with the Hellenic Football Federation (EPO) and serves as the physician for the National Futsal Team. Concurrently, he is UEFA-accredited, having completed the "UEFA Football Doctor Education Programme." He is a member of the Hellenic Society of Orthopedic Surgery and Traumatology and the Hellenic Society for the Study of Bone Metabolism. He trained at the General Accident Hospital KAT, specializing in fracture management, reconstructive joint surgery (knee and hip arthroplasty), and sports injuries. Following his specialization, he assumed the position of Registrar at the 2nd Orthopedic Clinic of KAT Hospital, where he remained for four years. During his tenure as Registrar, he gained substantial surgical experience, serving as the lead Orthopedic Surgeon in numerous emergency shifts and successfully performing a large number of surgical interventions across the full spectrum of trauma (upper and lower limb fractures, hip fractures, tendon ruptures, hand surgery), reconstructive surgery (hip and knee arthroplasties), and sports injuries (arthroscopic surgery). Additionally, he received training in Pediatric Orthopedics at the "Agia Sophia" Children's Hospital and in disorders of the Hand during his tenure at the University Hospital "Sahlgrenska University Hospital" in Gothenburg, Sweden.

Klaudianos Dionysios is an Orthopedic Surgeon with private clinics in Haidari and Nikaia and serves as a collaborator at the Peristeri Medical Center. He is a PhD candidate at the Medical School of the National and Kapodistrian University of Athens and holds a degree from the same institution's Medical School. He has specialized in knee arthroscopy, hip and knee arthroplasty, and has significant experience in the management and restoration of fractures. Additionally, he treats cases of osteoporosis as well as knee osteoarthritis using concentrated platelets - growth factors derived from adipose tissue. Finally, the physician has attended numerous international conferences related to sports injuries and their surgical treatment.

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.

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.