Orthopaedic - Orthopaedic Surgeons for Spondylolisthesis in Neo Psychiko

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.

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.

Dr. Antonios Aggoules, MD, PhD, is an Orthopedic Surgeon who maintains a private practice in Neo Psychiko. He holds a doctoral degree from the Medical School of the National and Kapodistrian University of Athens, as well as a medical degree from the same institution. He completed his specialty training in Orthopedics at the "Asklepieio" Voula Hospital, "P. & A. Kyriakou" Children's Hospital, and "Agios Savvas" Hospital, followed by a fellowship in the Academic Unit of Orthopaedic and Trauma Surgery at Leeds General Infirmary, funded by a scholarship from the Hellenic Society of Orthopaedic Surgery and Traumatology. The doctor has extensive experience in sports injuries, trauma, knee surgery, low back pain, neck pain, as well as medical acupuncture, holding certification in Traditional Chinese Medicine and Medical Acupuncture from the AcuScience International Postgraduate Center on Acupuncture. He collaborates with renowned private healthcare institutions and simultaneously teaches in higher education. His scientific work includes publications in international and recognized Greek medical journals, as well as numerous presentations at medical conferences on topics related to orthopedics, traumatology, and physical rehabilitation. Finally, he is a member of the Athens Medical Association and former President of its Alternative Medicine Committee, as well as a member of the Hellenic Medical Acupuncture Society.

Anastasopoulos Panagiotis is an Orthopedic Surgeon, maintaining a private practice in Chalandri. He has extensive experience in issues concerning injuries, arthroscopies, arthroplasties, and the musculoskeletal system in general.

Dr. Sinnis Gerasimos is an Orthopedic Surgeon - Traumatologist who has maintained a private practice in Ampelokipi since October 2014. He holds a medical degree from the University of Bologna in Italy. He specialized in Orthopedic Surgery and Traumatology at the General Hospital of Athens "Evangelismos," followed by training in the Microsurgery and Hand Department of the General Hospital of Attica KAT, and finally at the 2nd Orthopedic Clinic of the Children's General Hospital "P. & A. Kyriakou." For two years (05/2012 - 04/2014), he completed paid postgraduate training in hip and knee reconstructive surgery in Bologna, Italy, at the private clinic Casa di Cura "Villa Erbosa" (San Donato Hospital Group), in the Clinic for Degenerative and Dysplastic Hip Diseases, under the supervision of Professor Roberto Binazzi. From 02/2022 to 10/2023, he served as a physician for the football team of P.A.E. Panathinaikos, while from 09/2015 to 10/2019 he was head of the medical department of the P.A.E. Panathinaikos Academy, gaining significant experience with sports injuries in children and adults. He holds a postgraduate degree titled "Metabolic Bone Diseases" from the National and Kapodistrian University of Athens and is a final-year student in the postgraduate program "Exercise and Health" at the same institution.

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.

Analogidis Spyridon is an Orthopedic Surgeon with a private practice located in the Goudi area. He graduated from the Medical School of the National and Kapodistrian University of Athens and completed his specialization in Orthopedics at the 1st Orthopedic Clinic of Attikon General Hospital of Athens KAT. He has gained significant professional experience, having worked at Iaso GENERAL, in the Emergency Department of the Athens Medical Center, as well as at the MIOSMED Sports Injury Clinic. Currently, in his private practice, he provides specialized services and treats a wide range of conditions, including sports injuries, limb length discrepancy, arthritis, calcific tendinopathy, patellar instability, cervical syndrome, discopathy, intramedullary sclerosis, patellar and shoulder dislocation, sciatica, fractures, herniated intervertebral disc, osteoarthritis, and knee osteoarthritis.

Lallos Stergios MD, MSc is an Orthopedic Surgeon maintaining a private practice in Agia Paraskevi and also sees patients at the Metropolitan General. He holds a master's degree (MSc) in Metabolic Bone Diseases - Osteoporosis and a Medical Degree from the Medical School of the National and Kapodistrian University of Athens. He completed his specialty in Orthopedics and holds ATLS (Advanced Trauma Life Support) certification as well as a Basic Life Support diploma. Additionally, he is specialized in arthroplasty, arthroscopy, traumatology, sports injuries, and major joint surgery, areas he focused on after completing his specialty and subsequently upon selection by the Medical School of Athens, where he served as a University Fellow of the 2nd Orthopedic Clinic of the University of Athens. He then moved to Switzerland, where he worked as a Consultant in the Orthopedic Clinic of Salem Spital in Bern, covering the full spectrum of joint pathology and surgery. It is noteworthy that during his career, he served as a Scientific Associate at the "Errikos Dynan" Hospital Center and the Medical Diavalkaniko Center. Finally, Dr. Lallos is a member of numerous professional associations and has extensive participation in conferences, seminars, presentations, and publications.

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. Mparmpounakis Nikolaos MD, MSc is an Orthopedic Surgeon with private practices in Marousi within the "Mitera" Hospital, in Salamina, and in Ilisia. He holds a medical degree from the University of Medicine and Pharmacy "Iuliu Hatieganu" and completed a postgraduate program in "Metabolic Bone Diseases" at the National and Kapodistrian University of Athens. He specialized in Orthopedics at the Sports Injuries Department of the 4th Orthopedic Clinic of the General Hospital "Asklipieio" Voulas and received further training in the Shoulder Disease Clinic at the Istituto Clinico Humanitas in Milan. Additionally, he specialized in sports injuries at the Pediatric Orthopedic Clinic of the General Children's Hospital of Athens "Panagiotis & Aglaia Kyriakou" and in the management of Upper Limb and Shoulder disorders at the Microsurgery Clinic of the Attikon General Hospital of Athens KAT. Finally, he is a Scientific Collaborator at the Athens Bioclinic, the Medical Group at the Peristeri Clinic, and the Evgenidio Therapeutic Center, and collaborates with the private hospitals "Mitera," Metropolitan General, and Mediterraneo Hospital.

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.

Andreopoulos Asimakis is an Orthopedic Surgeon - Sports Medicine Specialist who has maintained his medical practice since 2008 in Ilion, Attica. He has been a Consultant at the 1st Orthopedic Clinic of Metropolitan General since 2008 and a collaborator at the Athens Medical Center in the Peristeri Clinic. He specializes in hip and knee arthroplasties, shoulder and knee arthroscopies, and traumatology. Throughout his career, he has worked in numerous hospitals and clinics, such as the General Hospital of Attica KAT and the General Hospital of Athens "Evangelismos," treating conditions including sports injuries, sciatica, fractures, low back pain, osteoarthritis, osteosynthesis, scoliosis, and spinal stenosis. Finally, he is a member of the Athens Medical Association, the Hellenic Society of Orthopedic Surgery & Traumatology, and the Hellenic Osteoporosis Foundation.

Dimitrios Kaklamanis is an Orthopedic Surgeon with private practices in Galatsi and Kolonaki. He is a PhD candidate at the National and Kapodistrian University of Athens and holds a degree from the Medical School of the same university. He completed his specialization in General Surgery at the Vascular Surgery Clinic of the Athens Prefectural General Hospital "Elpis" and in Orthopedic Surgery at the General Hospital of Athens "Laiko". With his experience and expertise, he is capable of diagnosing and managing common orthopedic problems encountered in daily life as well as treating any related conditions. Additionally, he participates in Greek and European conferences and is a member of the Athens Medical Association, the Hellenic Society for the Study of Bone Metabolism, and the Hellenic Society of Orthopedic Surgery and Traumatology.

Ο Γεώργιος Πολονύφης είναι Ορθοπαιδικός Χειρουργός, διατηρεί ιδιωτικό ιατρείο στην Αθήνα ενώ παράλληλα είναι Διευθυντής της Ορθοπαιδικής Κλινικής στο Ιατρικό κέντρο Περιστερίου. Πραγματοποιεί τις χειρουργικές του επεμβάσεις σε μεγάλες ιδιωτικές κλινικές της Αθήνας και της Περιφέρειας ενώ συνεργάζεται και με το Ιατρικό Κέντρο Ψυχικού. Είναι πτυχιούχος της Ιατρικής Σχολής του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών. Υπηρέτησε και εκπλήρωσε την στρατιωτική του θητεία στον Στρατό Ξηράς ως οπλίτης ιατρός του υγειονομικού ,αντιμετωπίζοντας πολλαπλά περιστατικά επείγοντος ορθοπαιδικού τραύματος κατά τη διάρκεια της θητείας του. Στο πλαίσιο της ειδίκευσης του στην Ορθοπαιδική Χειρουργική, άρχισε την ειδικότητά του και εργάστηκε στο Γενικό Νοσοκομείο Μεσολογγίου στο τμήμα της Γενικής Χειρουργικής με έμφαση στην αντιμετώπιση του επείγοντος χειρουργικού τραύματος. Εν συνεχεία εργάστηκε και ειδικεύτηκε στο Γενικό Νοσοκομείο Παίδων Αθηνών "Η Αγία Σοφία" στο τμήμα της Παιδοορθοπαιδικής όπου συμμετείχε σε πολυάριθμες παιδοορθοπαιδικές επεμβάσεις (τραυματολογία, αντιμετώπιση σκολίωσης, αντιμετώπιση συγγενών δυσπλασιών του μυοσκελετικού) καθώς και εκπαιδεύτηκε και στο υπερηχογράφημα ισχίου νεογνών για τη διάγνωση συγγενούς δυσπλασίας του ισχίου όπου και έλαβε την διεθνή πιστοποίηση απ΄τον παγκοσμίου φήμης καθηγητή Reinhard Graf, αντιμετωπίζοντας παράλληλα πολλαπλά επείγοντα και τακτικά περιστατικά. Απέκτησε εμπειρία στην διάγνωση και αντιμετώπιση παραμορφώσεων σπονδυλικής στήλης (σκολίωση, κύφωση, λόρδωση) καθώς και στις διαταραχές βάδισης και παραμορφώσεις άκρων ποδών. Έπειτα συνέχισε την ειδίκευσή του στο Γενικό Νοσοκομείο Ασκληπιείο Βούλας, όπου ασχολήθηκε με όλο το φάσμα των ορθοπαιδικών παθήσεων ενηλίκων, λαμβάνοντας μέρος σε πολυάριθμες χειρουργικές επεμβάσεις όπως επεμβάσεις τραυματολογίας, επανορθωτικής χειρουργικής αρθρώσεων(ολικές αρθροπλαστικές), αρθροσκοπήσεις, χειρουργικής άνω άκρου, χειρουργικής σπονδυλικής στήλης, επεμβάσεις μικροχειρουργικής, χειρουργική άκρου ποδός, επείγουσα αντιμετώπιση ορθοπαιδικού τραύματος κ.α. Συνέχισε την ειδίκευσή του στο Γενικό Νοσοκομείο Ατυχημάτων Κ.Α.Τ. Αθηνών στο Τμήμα Χειρουργικής Άνω Άκρου - Μικροχειρουργικής Άκρας Χειρός αντιμετωπίζοντας όλο το εύρος της τραυματολογίας του άνω άκρου καθώς και χρονίων παθήσεων του χεριού, λαμβάνοντας μέρος σε μεγάλο αριθμό επεμβάσεων μικροχειρουργικής άκρας χειρός, αρθροσκοπικής αποκατάστασης παθήσεων του ώμου(αρθροσκοπήσεις ώμου), χειρουργικής αποκατάστασης χρόνιων παθήσεων του άνω άκρου και αντιμετώπισης όλων των επειγόντων και τακτικών περιστατικών των παθήσεων του άνω άκρου συμμετέχοντας παράλληλα στην τρίμηνη πρακτική άσκηση της μικροχειρουργικής στο Εργαστήριο Έρευνας Μυοσκελετικών Παθήσεων του Γ.Ν.Α. ΚΑΤ. Συνέχισε την εκπαίδευσή του στο Γ.Ν.Α ΚΑΤ Αθηνών στο τμήμα Αρθροσκοπήσεων μικρών και μεγάλων αρθρώσεων συμμετέχοντας σε πολυάριθμες αρθροσκοπικές επεμβάσεις. Συνέχισε κατόπιν,στα πλαίσια της ειδίκευσής του, στο Τμήμα Αγγειοχειρουργικής του Γ.Ν.Α ΚΑΤ όπου συμμετείχε σε μείζονες και ελάσσονες αγγειοχειρουργικές επεμβάσεις με έμφαση στην αποκατάσταση τραυματισμών περιφερικών αγγείων στο επείγον ορθοπαιδικό τραύμα. Εν συνεχεία επέστρεψε στο Γ.Ν Ασκληπιείο Βούλας όπου και ολοκλήρωσε την ειδίκευσή του στην Ορθοπαιδική Χειρουργική. Ο ιατρός έχει εργαστεί ως ιατρός αγώνων ποδοσφαίρου και καλαθοσφαίρισης σε πρωταθλήματα του νομού Αττικής ως μέλος της ΑΘΛΕΤΙΑ (Αθλητιατρική Εταιρεία Ιατρών Αγώνων). Ο ιατρός είναι κάτοχος του ATLS(AdvancedTraumaLifeSupport),έχει συμμετάσχει σε πολυάριθμα συνέδρια του εσωτερικού και του εξωτερικού όπου υπήρξε και ομιλητής. Eπίσης έχει συμμετάσχει σε πολλαπλά επιστημονικά σεμινάρια, συνέδρια και courses Ορθοπαιδικής Χειρουργικής σε μια διαρκή προσπάθεια εξέλιξης και ενημέρωσης γύρω από τα νεότερα και πιο έγκυρα δεδομένα στον τομέα της ορθοπαιδικής. Παράλληλα, είναι εκπαιδευτής νέων συναδέλφων του σε πολλά Courses του εξωτερικού και του εσωτερικού.

Ο Χρηστογεώργος Πάρις, MD, MSc είναι Ορθοπαιδικός Χειρουργός και Τραυματολόγος με εξειδίκευση στις παθήσεις και τη Χειρουργική της Σπονδυλικής Στήλης. Ο ιατρός είναι απόφοιτος της Ιατρικής Σχολής του Πανεπιστημίου Κρήτης και κάτοχος Μεταπτυχιακού Διπλώματος (Master of Science, MSc) στην «Άθληση και Υγεία» με βαθμό Άριστα από την Ιατρική Σχολή Αθηνών του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών. Εκπλήρωσε την ειδίκευσή του στη Γενική Χειρουργική στο 251 Γενικό Νοσοκομείο Αεροπορίας (2014-2015). Ξεκίνησε και ολοκλήρωσε την ειδίκευσή του στην Ορθοπαιδική Χειρουργική και Τραυματολογία στο Γενικό Νοσοκομείο Αθηνών «Γ. Γεννηματάς» (2016-2021), όπου απέκτησε ιδιαίτερη εμπειρία στη διάγνωση και χειρουργική αντιμετώπιση σύνθετων καταγμάτων, κακώσεων, χρόνιων εκφυλιστικών παθήσεων και παραμορφώσεων του άνω και του κάτω άκρου . Στο πλαίσιο της ειδικότητας, εκπαιδεύτηκε στο Τμήμα Σκολίωσης και Σπονδυλικής Στήλης του Γ.Ν.Α. «ΚΑΤ» (2019-2020), όπου απέκτησε εμπειρία στην ολοκληρωμένη αντιμετώπιση όλου του φάσματος των παθήσεων, σύνθετων παραμορφώσεων και κακώσεων της Σπονδυλικής Στήλης. Ακόμα, εκπαιδεύτηκε στην Παιδο-ορθοπαιδική στο Νοσοκομείο Παίδων «η Αγία Σοφία» (2020-2021), όπου ήρθε σε επαφή με μεγάλο όγκο κακώσεων και παραμορφώσεων του παιδιατρικού πληθυσμού. Ο ιατρός εκπαιδεύτηκε ως Fellow στο Centre for Spinal Studies and Surgery του Queen’s Medical Centre, Nottingham University Hospitals στο Nottingham του Ηνωμένου Βασιλείου (2023), το οποίο αποτελεί διεθνώς αναγνωρισμένο Κέντρο Αριστείας κι Αναφοράς για τις παθήσεις, παραμορφώσεις και κακώσεις της Σπονδυλικής Στήλης στο Ηνωμένο Βασίλειο, καθώς και Κέντρο Εκπαίδευσης της AO Spine. Σήμερα, ο ιατρός εργάζεται ως Επιμελητής Ορθοπαιδικός- Χειρουργός Σπονδυλικής Στήλης στην Κλινική Σπονδυλικής Στήλης, Κέντρο Σκολίωσης, Τραύματος και Ογκολογίας Σπονδυλικής Στήλης του Νοσοκομείου Metropolitan General στην Αθήνα. Είναι διδάσκων του σεμιναρίου «Πρώτες βοήθειες- ορθοπαιδικά επείγοντα» για προπτυχιακούς και μεταπτυχιακούς φοιτητές της Ιατρικής Σχολής Αθηνών, ΕΚΠΑ από το 2019 έως σήμερα και ομιλεί άπταιστα Αγγλικά και Γερμανικά. Συμμετέχει ενεργά σε εγχώρια και διεθνή συνέδρια καθώς και επιμορφωτικά σεμινάρια και παράγει ερευνητικό έργο. Τέλος, είναι μέλος της Ελληνικής Εταιρίας Χειρουργικής Ορθοπαιδικής και Τραυματολογίας (Ε.Ε.Χ.Ο.Τ.) καθώς και του Ιατρικού Συλλόγου της Μεγάλης Βρετανίας (G.M.C.).

Ioannis Masiotis is an Orthopedic Surgeon with private practices in Agia Paraskevi and Cholargos. He holds a doctoral dissertation on the "Effect of anticoagulant factors on fracture healing," conducted in collaboration with the 4th University Clinic of the General Hospital of Attica KAT at the National Technical University of Athens. He has undergone advanced training in metabolic bone diseases and minimally invasive total hip arthroplasty techniques. Utilizing modern surgical methods (Minimally Invasive Surgery), he ensures minimal pain and rapid recovery in the management of sports injuries (meniscal tears, cruciate ligament tears, chondral lesions – cartilage transplantation, chondropathy, tendon ruptures, shoulder dislocation), knee, shoulder, ankle, and hip arthroscopies, knee and hip arthroplasty (Path and SuperPath techniques), fractures, hand disorders (carpal tunnel syndrome, ulnar neuropathy, trigger finger, tendinitis, etc.), foot conditions, and osteoporosis. Furthermore, Dr. Masiotis has authored numerous pioneering studies and publications presented at national and international conferences and is a member of the European Society of Sports Traumatology, Knee Surgery and Arthroscopy.

Dr. Pantos Panagiotis, MD, MSc, PhD, is an Orthopedic Surgeon with private practices in Marousi, Haidari, and Glyfada. He holds a PhD in Medicine from the National and Kapodistrian University of Athens and is a graduate of the Medical School of the same institution. He also has a master's degree in Public Health from the National School of Public Health. He specialized in Orthopedic Surgery & Traumatology at the 1st Orthopedic Clinic of the National and Kapodistrian University of Athens and received training in the Upper Limb and Microsurgery Clinic at the General Hospital KAT. After completing his specialization, he practiced as an Orthopedic Surgeon in Germany, serving as Oberarzt für Orthopädie und Unfallchirurgie in the Department of Orthopedics and Trauma Surgery, Center for Shoulder Surgery, Asklepios Klinik Seligenstadt. From 2016 to 2020, he worked as Leitender Oberarzt in the Clinic for Shoulder Surgery at Klinik Maingau vom Roten Kreuz, Frankfurt am Main. He is also Head of the Upper Limb Surgery and Sports Injuries Department at Osteon Orthopedic and Spine Clinic. Additionally, he is the Director of the Orthopedic Clinic - Upper Limb Department at the Athens Medical Center. In his private practices, he is capable of treating the full spectrum of shoulder conditions using either arthroscopic or open surgical techniques.

Tsiavos Konstantinos is an Orthopedic Surgeon and maintains a private practice in the Acharnes area. In recent years, he has worked as a Consultant in the Spine Surgery Department at "Hygeia" Hospital, specializing in Spine Surgery, Adult Reconstructive Surgery, and Trauma Management. He holds a degree from the Medical School of the National and Kapodistrian University of Athens and completed his postgraduate studies focusing on metabolic bone diseases and Osteoporosis at the same university. He began his specialization in Orthopedic Surgery as an assistant physician to Professor Mr. Soukakos at the Athens Bioclinic. Subsequently, for approximately six years, he worked as an Orthopedic Surgeon at some of the largest hospitals in Athens, specifically at the University General Hospital "Attikon" and the General Children's Hospital "P. & A. Kyriakou" (1 year). He has accumulated more than 10 years of experience in Orthopedic Surgery and successfully performs a large number of surgeries daily, focusing on conditions related to the Spine. His clinical interest centers on adult spinal disorders and congenital spinal conditions in children (scoliosis). He continuously pursues further education and attends seminars and specialized training courses in Greece and Europe and has obtained certification from the AO Course Advance In Operative Fracture Management. Finally, he has authored five academic publications, the latest of which was published in 2016 with the participation of academic colleagues and peers.

Topkas Athanasios MD, MSc is an Orthopedic Surgeon - Sports Medicine Specialist, affiliated with the Orthopedic Clinic of "Hygeia" Hospital, and maintains a private practice in Marousi. He graduated with honors from the Medical School of Varna University and holds a Master's degree in Metabolic Bone Diseases from the National and Kapodistrian University of Athens. He began his specialization in Orthopedic Surgery - Traumatology at the General Prefectural Hospital of Edessa and continued his training at the 1st IKA Hospital of Athens and the General Attica Hospital KAT. He worked as a Registrar B at the Sports Injuries Department of the General Attica Hospital KAT and subsequently as a Registrar B in the 2nd Hand Surgery and Microsurgery Department of the same hospital. During his specialization and tenure, he specialized in all surgeries related to the upper limb and the hand. Additionally, he specialized in Sports Medicine, with a particular emphasis on knee arthroscopy and anterior cruciate ligament reconstruction (ligament injuries of the knee). To date, Dr. Topkas remains a Scientific Collaborator of numerous private hospitals and groups such as Hygeia Hospital, the Biomed Group, the Athens and Piraeus Bioclinic, the Euromedica Group, the Errikos Dynan Hospital Center, the Mediterraneo Hospital, the Athenian Clinic, and the Athens Medical Group. Throughout his medical career, he has actively participated in the development of numerous studies, which have been presented at Greek and international conferences, and has contributed to the authorship of publications. He has participated in numerous postgraduate training programs and workshops and has served on organizing committees for various conferences. Finally, he is a member of the Athens Medical Association, the Hellenic Society of Reconstructive Microsurgery, the Hellenic Society for Hand Surgery, and the Hellenic Society for Wound and Ulcer Healing.