Orthopaedic - Orthopaedic Surgeons for Spondylolysis

Ntoulias Euaggelos is an Orthopedic Surgeon who maintains a private practice in Ilioupoli. He obtained his specialty in Orthopedics, training in General Surgery, Sports Injuries, Thoracic Surgery, Pediatric Orthopedics, and Orthopedics at the General Hospital of Volos "Achillopouleio," the General Hospital of Attica KAT, the Athens Thoracic Diseases Hospital "Sotiria," and the General Hospital "Asklipieio" Voula. He has extensive experience in sports medicine for individuals with special needs, having served as a physician in related track and field, boccia, and swimming championships. Additionally, he has served as a Consultant in the Pediatric Orthopedic Department of the Pediatric Clinic at Mitera Hospital. He has numerous participations and presentations at scientific conferences, as well as involvement in scientific workshops and seminars. Finally, the doctor is a member of the Athens Medical Association and the Hellenic Society of Orthopedic Surgery and Traumatology.

Dr. Theodosios Koukoumpis, MD, PhD, is an Orthopedic Surgeon with a private practice in Thessaloniki. His medical education and specialty training were initially completed at the University of Ioannina, followed by further training in the United States. His specialization and primary scientific interest lie in adult reconstructive surgery, with a particular focus on the Hip and Knee. Surgically, he employs modern techniques in Total Hip Arthroplasties for degenerative diseases as well as for complex Congenital Hip Dislocations, and also in Total Knee Arthroplasties. Where indicated for the patient's benefit, he applies minimally invasive surgical approaches (MIS) and selects the ideal implant for each patient, with appropriate planning and the highest quality materials. In Knee Arthroplasties, he utilizes advanced preoperative planning with Computed Tomography to employ patient-specific instruments (PSI). Finally, his scientific work includes hundreds of published papers, presentations, organization of conferences, and chairing of conferences both in Greece and internationally.

Flevarakis Georgios is an Orthopedic Surgeon and maintains private practices in Voula, Cholargos within Metropolitan General, and in Neos Kosmos within Athenian Lab & Medicine. He graduated from the Medical School of the University of Patras, where he was admitted following nationwide examinations. His initial exposure to Orthopedic specialization was at the Orthopedic Clinic of the Naval Hospital of Athens (2006-2008). From 2008 to 2011, he served in the Orthopedic Oncology Department of the Anticancer-Oncology Hospital "Agios Savvas". In 2011, he continued his specialization in the Shoulder Surgery Department of the General Hospital Asklipieio Voula. In 2014, after completing his specialization, he obtained the title of Orthopedic Surgeon following examinations. From 2014 to 2016, he held a salaried position (Clinical Shoulder and Elbow Fellow) in the Shoulder and Elbow Surgery Department of the University Hospital of Liverpool, one of the largest referral centers in the United Kingdom. Since returning to Greece in 2016, he maintains his private practice in Voula and also works at the private hospital Metropolitan General as a consultant in the 3rd Orthopedic Clinic - Minimally Invasive Surgery.

Karalaios Nikolaos V. is an Orthopedic Surgeon who maintains a private practice in Larissa. He holds a degree from the Medical School of Aristotle University of Thessaloniki and completed his orthopedic residency at the General Hospital of Attica KAT, concurrently receiving training in the Microsurgery - Upper Limb Surgery and Pediatric Orthopedics departments. Additionally, he was awarded a scholarship by the Hellenic Society of Orthopedic Surgery & Traumatology for further training in Shoulder and Elbow Arthroscopic Surgery at the University Hospital of Milano Humanitas under Professor Alessandro Castagna. He has extensive experience in arthroscopic surgery of the shoulder, elbow, and knee, sports injuries, reconstructive surgery of the knee and hip, microsurgery, pediatric orthopedics, and spinal disorders. He collaborates with the Private Clinic Theotoko, Asklipieio Thessalia General Clinic, Iaso, and the Animus Rehabilitation Center. Finally, he is a member of the Hellenic Society of Orthopedic Surgery and Traumatology and the European Society of Sports Traumatology, Knee Surgery, and Arthroscopy.

Daras Xristos is an Orthopedic Surgeon and Sports Medicine Specialist who operates a private practice in Kolonaki and simultaneously serves as the Director of the Orthopedic Clinic at the Medical Center of Palaio Faliro. He graduated from the Medical School of the University of Athens and holds a PhD from the Medical School of the University of Rome. Additionally, he specialized in Orthopedics and Sports Medicine at the General State Hospital of Nikaia and the General Hospital of Athens "KAT." He has extensive experience and has served as a physician for football and basketball teams in the Greek first division, as well as for the national swimming and water polo teams. Specifically, he has been the Sports Medicine Specialist for the football clubs Olympiacos FC, Panionios, and Ionikos. Finally, he specializes in sports injuries.

Papaioannou K Ioannis is an Orthopedic Surgeon with a private practice in Thessaloniki. He specialized at the 1st Orthopedic Clinic of the Aristotle University of Thessaloniki at the General Hospital of Thessaloniki "G. Papanikolaou". He holds a degree from the Faculty of Medicine at Masaryk University in Brno, Czech Republic. He is specialized in hip and knee surgery, sports injuries, spinal disorders, and trauma. He trained in General Surgery at the 2nd Surgical Clinic of the 424 General Military Training Hospital and to this day serves as an Associate Physician at the Euromedica Cyan Cross Clinic. The doctor provides specialized services in hip and knee surgery (arthroplasty, sports injuries), management of spinal disorders, treatment of kyphosis/scoliosis, hand surgery, and traumatology.

Dr. Tsapakidis Giannis was born in Larisa in 1975 and graduated from the Medical School of Aristotle University of Thessaloniki in 2000. He completed his Orthopedic specialty residency at Tzaneio General Hospital of Piraeus, with part of his training conducted at KAT Hospital and Charing Cross Hospital in London. He received a scholarship from AO and worked as a Fellow at the Sports Injuries and Trauma Center of Queens Medical Centre University Hospital in Nottingham. He is a PhD candidate at the University of Athens and a member of AO ALUMNI. Since 2006, he has served as the team physician for the women's basketball team “ESPERIDES” Kallithea (Women’s A1 Basketball Champion for 2006-07 and 2008-09 and Greek Cup Winner for 2005-06, 2006-07, 2007-08, and 2008-09). From 2015 to 2018, he was part of the medical team covering orthopedic concerns for the athletes of KAE AEK. Since 2013, he has provided medical coverage for the basketball team PROTEAS VOULAS and from 2015 to 2025 served as the medical provider for the athletes of the basketball team KAE AMAROUSIOU. From 2021 to 2023, he was the team physician for the WOMEN'S NATIONAL BASKETBALL TEAM, and from 2022 to 2024 for the team of PANIONIOS B.C. Previously, he was part of the medical team covering orthopedic needs of the athletes of KAE PANELLINIOS from 2008 to 2011 and the Cultural and Sports Center “DAIS.” Subsequently, from 2018 to 2022, he provided medical coverage to the athletes of MELLISION and since 2018 to the athletes of ESPEROS B.C. Finally, starting this year, he has been the medical provider for the amateur club PANATHINAIKOS A.O. He has attended specialized seminars/workshops in Traumatology, Microsurgery, and Arthroscopic Surgery both in Greece and abroad. He has participated with publications/presentations in Greek and International scientific conferences and journals.

Ο Δρ. Νικόλαος Καλύβας είναι Ορθοπαιδικός Χειρουργός με 15ετή εμπειρία στο Σύστημα Υγείας της Γερμανίας (2010–2025). Απο το 2026 διατηρεί ιδιωτικό ιατρείο στους Αμπελόκηπους (έναντι της αμερικανικής πρεσβείας). Για περισσότερα από 15 έτη εργάστηκε σε κλινικές υψηλού επιπέδου της Γερμανίας, ενώ από το 2017 υπηρέτησε ως Επιμελητής και από το 2021 ως Αναπληρωτής Διευθυντής σε πιστοποιημένο κέντρο ενδοπροσθετικής (EPZmax), διενεργώντας συνολικά πάνω από 11.000 χειρουργικές επεμβάσεις.

Εξειδικεύεται σε αρθροπλαστική Ισχίου με τεχνική AMIS, ρομποτική και εξατομικευμένη Αρθροπλαστική Γόνατος, αρθροπλαστική Ώμου με ελάχιστα επεμβατική προσπέλαση και αρθροσκοπική Χειρουργική Ώμου & Γόνατος.

Εφαρμόζει πρωτόκολλα ταχείας αποκατάστασης (Rapid Recovery – Fast Track) με στόχο την άμεση κινητοποίηση και την ασφαλή επάνοδο των ασθενών. Διαθέτει επιπλέον εξειδίκευση στην Αθλητιατρική, τη Χειροθεραπεία και την υπερηχογραφική διάγνωση του μυοσκελετικού συστήματος, καθώς και στον έλεγχο ισχίων νεογνών κατά Graf. Στη διαγνωστική του προσέγγιση αξιοποιεί συστηματικά τη δεξιότητά του στην υπερηχογραφία μυοσκελετικού, επιτρέποντας άμεση, δυναμική και στοχευμένη αξιολόγηση των παθήσεων.

Η εξειδίκευσή του στην Αθλητιατρική και τη Χειροθεραπεία διαμόρφωσε μια πιο ολιστική και λειτουργική προσέγγιση απέναντι στον ασθενή. Ο Δρ. Καλύβας δίνει προτεραιότητα στη συντηρητική θεραπεία, η οποία περιλαμβάνει εξατομικευμένα πρωτόκολλα αποκατάστασης καθώς και υπερηχογραφικά καθοδηγούμενες εγχύσεις κορτιζόνης, υαλουρονικού οξέος και PRP (Platelet Rich Plasma).

Εφόσον έχει εξαντληθεί κάθε πιθανότητα βελτίωσης της πάθησης του ασθενούς με συντηρητική θεραπεία, προτείνει τη χειρουργική αντιμετώπιση μόνο όταν αυτή είναι πραγματικά απαραίτητη.

Στόχος του είναι η παροχή ιατρικής φροντίδας ευρωπαϊκού επιπέδου, με ασφάλεια, διαφάνεια και σεβασμό στον ασθενή.

Dr. Kyrilis Xristos MD, MSc is an Orthopedic Surgeon - Spine Surgeon specializing in spinal surgery, as well as endoscopic spinal surgery, and maintains a private practice in Vrilissia. He was admitted to the Medical School of Aristotle University of Thessaloniki and, after completing his studies and fulfilling his military obligations, he began the general part of his specialty in Orthopedics and Traumatology at the General Surgery Clinic of the General Hospital of Agrinio. Since 2014, he worked as an Orthopedics and Traumatology resident at the Attica General Hospital KAT, in the 1st Orthopedic Clinic, until September 2019. During this period, he participated in numerous surgical procedures and contributed to the operation of all departments of the Clinic. Additionally, he was seconded to the Scoliosis and Spine Department of the General Hospital KAT, where he participated in the diagnosis and management of complex cases, covering the entire spectrum of spinal pathology. During his specialty training, he attended numerous educational conferences and seminars, enhancing his knowledge and experience. Continuing his education, he completed his postgraduate studies program at the National and Kapodistrian University of Athens, focusing on the "Rehabilitation of Spinal Cord and Spinal Cord Injuries." Today, he works as a Scientific Associate at YGEIA Hospital and as a Consultant in the Spine, Scoliosis, and Oncology Department of Metropolitan General Hospital. With his experience and expertise, he is committed to providing high-quality medical care, focusing on pain relief and the restoration of mobility for his patients.

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.

Dr. Paraskeuakos Grigorios is an Orthopedic Surgeon who has maintained a private practice in Nikaia since 2005. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and completed his residency at the General Hospital of Attica KAT. Additionally, he specialized in General Surgery in the Pediatric Surgery Department of the General Hospital of Piraeus "Tzaneio" and further specialized in the Microsurgery Department of the General Hospital of Attica KAT. The physician continuously updates his knowledge in orthopedic matters through ongoing participation in osteoporosis and general orthopedics seminars both in Greece and abroad. Finally, his private clinic offers a wide range of services, tailored to the individual needs of each patient.

Alafropatis Ilias is an Orthopedic Surgeon maintaining a private practice in Evosmos, Thessaloniki. He graduated from the Medical School of Aristotle University of Thessaloniki. He began his specialization at the Surgical Clinic of the General Hospital of Lamia, continued at the Orthopedic Clinic of the General Hospital of Kavala, and subsequently was appointed to the 3rd University Orthopedic Clinic of Aristotle University of Thessaloniki at Papageorgiou General Hospital. He obtained the specialist title in Orthopedic Surgery and Traumatology after successful examinations in 2015 and concurrently received the diploma of the Hellenic College of Orthopedic Surgeons. He has been a scientific collaborator of the 3rd University Orthopedic Clinic of Aristotle University of Thessaloniki since obtaining his specialty to the present day. He served as an Orthopedic consultant for the MDA Hellas department operating in the 2nd University Pediatric Clinic of Aristotle University of Thessaloniki, where adults and children with neuromuscular disorders are treated. Throughout his scientific career, he has participated in numerous conferences, seminars, and educational events, contributed to the authorship of various scientific papers in Greek and international scientific journals, authored a book published by an international publisher of scientific monographs, and has been involved in the education of medical students at the Medical School of Aristotle University of Thessaloniki. Finally, the physician has been trained in a broad spectrum of orthopedic surgeries encompassing both trauma surgery and reconstructive orthopedic surgery, with particular interest in upper limb and hand pathologies, and has established collaborations with all private clinics in Thessaloniki.

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.

Popovski Grigorios is an Orthopedic Surgeon with private practices in Thessaloniki and Peraia. He holds a medical degree from the School of Health Sciences in Croatia and specialized in Sports Injuries at the General Hospital of Thessaloniki “Agios Savvas” and in Spine Surgery at the University General Hospital of Thessaloniki AHEPA. He has worked as an Orthopedic Surgeon in the Orthopedic Department of the General Hospital of Thessaloniki “Agios Pavlos” and collaborates with the “Agios Loukas” Clinic, the Diavalkaniko Center, and the Bioclinic of Thessaloniki. Finally, he is a member of the Medical Association of Thessaloniki.

Dr Loupas Dimitrios is an Orthopedic Surgeon and maintains a private practice in Chalandri. He graduated from the Medical School of the National and Kapodistrian University of Athens. He specialized at the University Orthopedic Clinic at KAT Hospital and completed his doctoral dissertation at the Medical School of the University of Athens. He specialized in sports injuries (Sports Injuries Clinic at KAT) and at the Athens Medical Center (under the direction of L. Nikolaou). Additionally, the doctor has worked at the 1st and 3rd IKA Hospitals and has served as Director of the Orthopedic Clinic of the General Hospital of Athens "Evangelismos". He is involved in general orthopedic surgical conditions, with a specialization in disorders of the hand and knee (including knee arthroscopy) and total knee and hip arthroplasties.

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.

Ο Μιχαήλ Θεόδωρος είναι Ορθοπαιδικός - Ορθοπαιδικός Χειρουργός και Υποψήφιος Διδάκτωρ της Ιατρικής του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης, μέλος του διοικητικού συμβουλίου της ΑΘΛΗΤΙΑΤΡΙΚΗΣ ΕΤΑΙΡΙΑΣ ΕΛΛΑΔΟΣ, με ιδιωτικό ιατρείο στον Εύοσμο Θεσσαλονίκης. Παράλληλα, συνεργάζεται με πλήθος ιδιωτικών κλινικών της Θεσσαλονίκης, καθώς και με την Γ’ Πανεπιστημιακή Ορθοπαιδική Κλινική, όπου προσφέρει της υπηρεσίες του ως Επιστημονικός Συνεργάτης στις μονάδες Αθλητικών Κακώσεων, Μυοσκελετικού Τραύματος ενηλίκων και Μυοσκελετικής Ογκολογικής Χειρουργικής. Σπούδασε στην Ιατρική Σχολή του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης. Ξεκίνησε την ειδικότητά του στο 424 Γενικό Στρατιωτικό Νοσοκομείο Εκπαιδεύσεως, την οποία ολοκλήρωσε στην Γ’ Πανεπιστημιακή Ορθοπαιδική Κλινική στο Γενικό Νοσοκομείο Θεσσαλονίκης "Παπαγεωργίου". Μετά το πέρας της ειδικότητας του, έλαβε υποτροφία από το Ίδρυμα Σταύρος Νιάρχος για το Hospital for Special Surgery (HSS) στην Νέα Υόρκη των Ηνωμένων Πολιτειών Αμερικής, το μεγαλύτερο νοσοκομείο Ορθοπεδικών παθήσεων παγκοσμίως, όπου, μέσω του προγράμματος HSS-Stavros Niarchos Foundation Orthopaedic Seminar Program αλλά και του ετήσιου συνεδρίου ισχίου και γόνατος (Annual Holiday Knee & Hip Course), ενημερώθηκε για τις πιο σύγχρονες τεχνικές (Ρομποτική και Navigation) και τα νεότερα υλικά στο πεδίο της αρθροπλαστικής. Επίσης, έχει πραγματοποιήσει μεταπτυχιακές σπουδές στο πεδίο της Αθλητιατρικής (Sports Medicine) ενώ κατέχει και το Δίπλωμα "Ιατρικής Ποδοσφαίρου" της FIFA (Federation International de Football Association). Η ενασχόλησή του με τον αθλητισμό από την παιδική του ηλικία τον οδήγησε να εστιάσει μέρος των σπουδών του προς την πρόληψη και αντιμετώπιση αθλητικών κακώσεων και στην Αθλητιατρική. Επί του παρόντος ο ιατρός έχει αναλάβει καθήκοντα Υπεύθυνου του Ιατρικού Επιτελείου ομάδας Πετοσφαίρισης Ανδρών που αγωνίζεται στην Α1 Εθνική κατηγορία (Volley Leauge), Πετοσφαίρισης Γυναικών που αγωνίζεται στην Α2 Εθνική κατηγορία και Καλαθοσφαίρισης Ανδρών που αγωνίζεται στην Γ’ Εθνική κατηγορία. Έχει συμμετάσχει σε πληθώρα εκπαιδευτικών σεμιναρίων και συνεδρίων, αλλά και ως ομιλητής σε ένα μεγάλο αριθμό επιστημονικών συνεδρίων. Τέλος, διαθέτει αξιόλογη ερευνητική εμπειρία έχοντας δημοσιεύσει έρευνες του σε εγχώρια και διεθνή επιστημονικά περιοδικά και έχει προσφέρει τις γνώσεις του σε νέους συναδέλφους από την θέση του εκπαιδευτή σεμιναρίων, μέσω εβδομαδιαίων διαλέξεων στους φοιτητές ιατρικής του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης και ως υπεύθυνος για την εξοικείωση με το αντικείμενο της Ορθοπαιδικής, φοιτητών των Η.Π.Α., μέσω του προγράμματος ATLANTIS.