Orthopaedic - Orthopaedic Surgeons

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.

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.

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.

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.

Spanos Ioannis MD, MSc is an Orthopedic Surgeon, with a particular specialization in foot and ankle pathologies, collaborating with the Agios Loukas Clinic since 2012. He has extensive experience in the management of orthopedic and sports injuries. After graduating from Aristotle University of Thessaloniki, he completed his residency at the First Orthopedic Clinic of the General Hospital of Athens "Evangelismos," during which he received training in sports injuries at the Sports Injuries Clinic of KAT - General Hospital and Accident Hospital. Following the completion of his specialty, he received further specialized training in the surgical management of forefoot and hindfoot conditions (Fuß Orthopädisches KH Speising, Fusszentrum Wien) as well as in ankle arthroscopy (Orthopedic Department and Orthopedic Research Center, AMC Amsterdam). He holds a Master’s degree (MSc) in "Exercise and Health" and has participated as a speaker in international and national orthopedic conferences. His objective is to provide high-level, personalized medical services through continuous education.

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.

Masount Mamoun is an Orthopedic Surgeon with private practices in Ambelokipi (Gkyzi area) and Nafplio (Head of the Orthopedic Department at IASIS Polyclinic - Argolida).

He is a graduate of the Medical School of Aristotle University of Thessaloniki and holds a postgraduate diploma in metabolic bone diseases from the National and Kapodistrian University of Athens.

He has obtained a specialty title in Orthopedic Surgery and Traumatology from the 3rd University Orthopedic Clinic of the General Hospital of Attica KAT. He is specialized in arthroplasty, arthroscopy, traumatology, sports injuries, and surgery of major joints, as well as in osteoporosis, osteoarthritis, and fracture healing.

In his private clinic, he manages conditions across the entire spectrum of orthopedics, with a special interest and experience in pediatric orthopedics.

Additionally, he serves as a Scientific Collaborator and surgeon at Metropolitan Hospital, Medical Center Athens Group, and Hospitality Clinic Athens.

Finally, through his participation in numerous seminars, workshops, and conferences, he continually updates himself on advancements in his field to provide specialized services tailored to his patients' individual needs. He is also a member of the Hellenic Society of Orthopedic Surgery and Traumatology and the Hellenic Osteoporosis Foundation.

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.

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.

Giantsidis N Georgios MD, MSc is a Military Physician, Orthopedic Surgeon and consultant at the 1st Orthopedic Department of the 424 General Military Training Hospital. He maintains a private practice in Thessaloniki, in the Voulgari area. He graduated from the Medical School of the Aristotle University of Thessaloniki (Military Medicine) in 2012 and subsequently served as a physician in Special Forces Military Units. He completed his specialty training at the 424 General Military Hospital and the General Hospital of Thessaloniki "Georgios Papanikolaou." During his residency, he performed numerous orthopedic surgeries, participated in many fracture repair and orthopedic disorder surgeries, trained in urgent and routine cases of his specialty, and actively contributed to the scientific work of his clinic. Since then, he has been serving as an orthopedic consultant at the 1st Orthopedic Department of the 424 General Military Training Hospital, performing a large number of surgical procedures annually across the full spectrum of Orthopedic specialty. He actively participates in postgraduate seminars and conferences to continuously update and enhance his knowledge of the latest advances and developments in Orthopedic Surgery and Traumatology.

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.

Mantakos Dimitrios is an Orthopedic Surgeon who maintains private practices in Ilion and Skala Lakonias. Additionally, he serves as Consultant at the 3rd Orthopedic Clinic of the private hospital HYGEIA and as a Scientific Collaborator at the private hospital MITERA. He studied Medicine at the University of Patras and subsequently completed his postgraduate studies in "Metabolic Bone Diseases" at the National and Kapodistrian University of Athens. He has many years of experience, having specialized at the Penteli General Children’s Hospital where he completed training in Pediatric Orthopedics and Traumatology, and at the 1st Orthopedic Clinic of the General Attica Hospital KAT. At the same hospital, he further specialized in the Hand - Upper Limb - Microsurgery Clinic, as well as in the Sports Injuries Department. He has also completed courses in Advanced Trauma Life Support, Basic Life Support (BLS), and Prehospital Trauma Life Support. He is a member of the European Pediatric Orthopaedic Society (EPOS), the European Society for Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA), the Hellenic Society of Orthopedic Surgery and Traumatology (HSOST), and the Athens Medical Association. Furthermore, he has attended numerous national and European orthopedic and other specialty conferences and has participated in a significant number of seminars both as an instructor and as a trainee.

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.

Anagnostou Antonios is an Orthopedic Surgeon who maintains a private practice in Thessaloniki. In a modern facility, easily accessible for all ages, he provides comprehensive medical services including diagnosis, treatment, and postoperative follow-up of patients. Specifically, his expertise includes total knee and hip arthroplasty, anterior cruciate ligament reconstruction of the knee, reconstructive surgery, sports injuries, shoulder disorders, autologous mesotherapy, carpal tunnel syndrome, De Quervain’s tenosynovitis, pediatric orthopedics, and injections. He graduated from the Medical School of Aristotle University of Thessaloniki in 2009. He specialized in Greece, completing his residency at the 2nd University Clinic of the General Hospital "G. Gennimatas," where he received advanced training in both adult and pediatric orthopedics.

Mpoutsiadis Axilleas is an Orthopedic Surgeon - Military Physician and Doctor of Medicine from the Aristotle University of Thessaloniki, with a private practice located within the Athens Bioclinic. He is a graduate of the Military School of Corps Officers (SSAS) and the Medical School of Aristotle University of Thessaloniki. He specialized at the 424 General Military Hospital of Thessaloniki and the First University Orthopedic Clinic of Papageorgiou General Hospital. He received further training in shoulder and knee surgery (Shoulder and Knee fellowship) and in conducting clinical trials. He possesses extensive clinical experience, having worked in Greece and France. Moreover, he has a significant scientific portfolio reflected in 32 scientific publications in reputable international scientific journals (PubMed) with a substantial impact factor, some of which introduce innovative new techniques concerning arthroscopic shoulder surgery (instability and rotator cuff) and knee surgery (anterior and posterior cruciate ligament reconstruction). He is also the author of five orthopedic book chapters focusing on basic research and shoulder surgery (rotator cuff and shoulder arthroplasties), principal editor of a scientific orthopedic book addressing surgical techniques for the treatment of rotator cuff disorders and shoulder arthroplasties titled “EFOST Surgical Techniques in Sports Medicine - Shoulder Surgery, Volume 2: Rotator Cuff and Shoulder Arthroplasty,” and principal guest editor of a scientific journal issue on shoulder pathology titled “Thematic issue in Shoulder Pathology.” Additionally, he has presented over 100 communications at international and national conferences (winning two awards), participated in the organization of numerous workshops and conferences, and has been invited as a speaker and educator at scientific conferences on shoulder surgery and sports injuries.

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. 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.

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. Xarisis Mixail is an Orthopedic Surgeon specializing in adult and pediatric care and is the head of the Arthroiasis Surgical Center in Thessaloniki. He maintains a ground-floor clinic in Thessaloniki, easily accessible for individuals with mobility issues. He graduated from the Medical School of Aristotle University of Thessaloniki and holds a Master's Degree from the Anatomy Laboratory of AUTH, with a scientific thesis titled: "Anatomical study of the origin, course, and distribution of the suprascapular and subscapular nerves." His clinical activity focuses on adult reconstructive surgery (minimally invasive (MIS) total knee, hip, and shoulder arthroplasties), sports injuries, arthroscopic techniques, and modern biological therapies, having performed numerous surgical procedures in these areas. He obtained his Orthopedic specialty at the General Hospital of Kilkis and subsequently trained at the Upper Limb and Hand Surgery Department of Sahlgrenska University Hospital in Gothenburg, Sweden, under the supervision of the internationally renowned Professor Anders Björkman. During this advanced training, he acquired a high level of expertise in microsurgical techniques and in the management of complex conditions and injuries of the upper limb and hand. Additionally, he actively participates in the scientific community as a speaker at conferences and seminars, while continuously attending specialized workshops and educational programs to ensure ongoing development and enhancement of his knowledge. He is affiliated with the Medical Interbalkan and Euromedica Cyan Cross facilities in Thessaloniki.