Orthopaedic - Orthopaedic Surgeons with experience in Κnee 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.

Rontogiannis Georgios is an Orthopedic Surgeon who maintains a private practice in Chalkida. He graduated from the Medical School of the National and Kapodistrian University of Athens. He possesses considerable clinical experience, having specialized in major clinics in Germany. Upon his return to Greece, he assumed the position of Consultant in the Orthopedic and Sports Orthopedic Clinic at Metropolitan Hospital. The physician specializes in arthroscopy, minimally invasive hip arthroplasty, as well as knee arthroplasty.

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

Ksomeritaki Eleni is an Orthopedic Surgeon and maintains a private practice in Pangrati. She studied at the Medical School of the University of Crete in Heraklion. She served her mandatory Rural Service at the Vamou Health Center in Chania. In 1998, she obtained her specialty title in Orthopedic Surgery and Traumatology. She specialized in Orthopedics at the Asklipieio Hospital of Voula and at KAT Hospital in specialized departments of hand surgery, microsurgery, and pediatric orthopedics. Additionally, she completed postgraduate studies in the organization and management of health services. She has completed three years of training in medical acupuncture (2 years at the Northern Greece Institute of Acupuncture and 1 year at the Medical Acupuncture Training Center) and holds certification according to the standards of ICMART - International Council of Medical Acupuncture Related Techniques. Furthermore, she has been trained in homeopathy. Alongside Orthopedics, she has been practicing acupuncture since 2010, primarily addressing musculoskeletal pain by administering homeopathic medicines in combination.

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.

Ioannis Xliavoras is an Orthopedic Surgeon with a private practice in Thessaloniki. He is a former consultant and chief surgeon at the center for comprehensive total joint replacements at Klinikum Hochsauerland in Arnsberg, Germany. Since 2019, he has been responsible for the cartilage surgery and arthroscopic surgery department of the orthopedic clinic at Klinikum Hochsauerland. Since 2017, he is a certified Surgeon-Arthroscopist of the German Society for Arthroscopic Surgery and Joint Surgery (AGA). He is a certified Sports Medicine physician by the Medical Association of Westphalia, Germany. He is a collaborator of the private clinic "Kyaneus Stavros-Euromedica." He specializes in arthroscopic procedures of the knee and shoulder, as well as total knee and hip arthroplasties, with extensive experience in modern minimally invasive techniques and rapid recovery, having performed numerous surgeries.

Dr. Zaxariou Stergios MD is an Orthopedic Surgeon - Traumatologist, maintaining private practices in Elefsina and Ano Liosia. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and completed his specialization at the Orthopedic Department of the General Hospital of Piraeus "Tzaneio." Dr. Zaxariou specializes in sports injuries and is a member of the Medical Team of the Olympiacos B.C. Additionally, he specializes in the minimally invasive Surgical Treatment Method for Carpal Tunnel Syndrome and stays continuously updated on all developments in Orthopedics through participation in conferences. In his private practice, he offers all necessary examinations and patient services including clinical examination, fracture monitoring, kyphosis and scoliosis management, osteoporosis screening, meniscus, cruciate ligament, and chondropathy arthroscopy, as well as intra-articular injections. Finally, Dr. Zaxariou is a member of the Hellenic Arthroscopy Society and the Hellenic Osteoporosis Foundation.

Kakavas Pindaros is an Orthopedic Surgeon at the Athens Medical Center, Chief Physician of the AEK F.C. Football Academy, and maintains a private practice in Neo Psychiko. He holds a Diploma in Sports Injuries from the International Olympic Committee based in Lausanne. He graduated from the Medical School of Aristotle University of Thessaloniki and specialized in Orthopedics at the General Hospital "Evangelismos." Concurrently, he specialized in Upper Limb Microsurgery and Pediatric Orthopedics at the General Hospital of Attica "KAT." He has served as a consultant at the 2nd Sports Injuries Clinic of Euroclinic Athens, Team Doctor for AEK FC (A' Team), Football Academy Doctor for Panathinaikos F.C., and as a member of the medical staff for AEK BC and Panellinios BC. Throughout his career, he has accumulated surgical experience in sports injuries, arthroscopic surgery, total knee and hip arthroplasties, and orthopedic trauma.

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.

Papaioannou Xristoforos is an Orthopedic Surgeon and Doctor of Medicine from the Medical School of the University of Freiburg, Germany, with a private practice in Agia Varvara. After completing his studies at the Medical School of the National and Kapodistrian University of Athens, he specialized in Orthopedics and Traumatology and sub-specialized in Upper Limb, Hand Surgery, and Microsurgery at major centers in Germany. He is a certified Hand Surgeon (Handchirurg) following examinations at the University of Münster, Germany. He currently maintains a position as an Orthopedic Surgeon in the Department of Orthopedics, Traumatology & Hand Surgery at the Kreisklinikum Siegen clinic, an academic center of the University of Marburg. Furthermore, he specialized in the Department of Orthopedics, Traumatology & Hand Surgery at Darmstadt Hospital (Kreisklinikum Darmstadt). Additionally, he worked at the certified orthopedic center and arthroplasty center, as well as in the spinal surgery department of the orthopedic clinic in Lorsch, Germany, where he specialized in minimally invasive knee and hip arthroplasty surgery and in targeted fluoroscopy-guided injection therapy with slow-release corticosteroids for the management of chronic pain in spinal disorders. Finally, he served for several years as a scientific collaborator at the University of Freiburg and has numerous publications in scientific journals and conferences.

Papagiavis Anastasios is an Orthopedic Surgeon specializing in Hip and Knee surgery, maintaining a private practice at Mavili Square and is the founder of the hip-knee team. He obtained his Medical Degree in 2002 and worked as a Military Doctor until 2006 in Athens, Tripoli, and Cyprus. He received advanced training in the specialized treatment of Knee and Hip conditions in the U.S. (Hedley Orthopaedic Institute) and the United Kingdom (City Hospital - Nottingham, Nuffield Orthopaedic Hospital – Oxford, UK). He applies the most innovative SuperPATH MIS technique in Hip Arthroplasty, having been trained by the method’s inventor, Dr. Jimmy Chow. In Knee Surgery, he employs minimally invasive techniques combined with robotic assistance, resulting in rapid recovery with less pain and complications. He undertakes complex cases within his specialty, offering the most modern and effective treatments. His principle is the customization of therapy to the specific characteristics of each patient and the integration of new technological advancements into his surgical practice. More specifically, he performs hip and knee arthroplasty, knee arthroscopy, surgery for cruciate ligament tears - meniscal tears and cartilage defects of the knee, hip fractures, lower limb fracture surgery (femur - tibia), sports injuries, hip and knee arthroplasty revisions, and specialized hip and knee procedures. Finally, the physician serves as Chief Medical Officer at the 401 General Military Hospital and operates at Hygeia Group and other private clinics in Athens.

Georgoudis Mixalis is an Orthopedic Surgeon – Spine Surgeon and maintains private practices in Chalkida, as well as within Metropolitan Hospital in Faliro.

He graduated from the Medical Department of Democritus University of Thrace. He has worked as an Orthopedic Surgeon in the 2nd Orthopedic Clinic and as a Resident Orthopedic Surgeon in the Scoliosis and Spine Department and in the Pediatric Orthopedics Clinic of the G.N.A KAT General Hospital. He is specialized in hip and knee arthroplasty, arthroscopic surgery, and spinal surgery.

He serves as an External Associate of Metropolitan Hospital in Faliro and the Athens Medical Center – Psychiko Clinic. He has served as Director of the 2nd Orthopedic Department at Euroclinic Athens, as well as Consultant of the Minimally Invasive Spine Surgery Department (MISS) at the Athens Medical Center. Additionally, as a resident, he worked at the General Prefectural Hospital of Chalkida and the General Hospital of Chios "Skylitseio".

He has participated in numerous national and international scientific conferences and seminars, with his scientific work published and presented in medical journals and conferences respectively. Particularly noteworthy is the Travel Fellowship he received from the E.E.X.O.T. for his participation in the FORTE Summer School held in 2018 in Milan.

Finally, the doctor is a member of the Medical Associations of Athens and Evia, the Hellenic Society of Orthopedic Surgery and Traumatology, and the Hellenic Osteoporosis Foundation.

Dr. Papathanasiou Athanasios is an Orthopedic Surgeon, Sports Medicine Specialist, and Pediatric Orthopedist, maintaining private clinics in the center of Thessaloniki and in Evosmos. He graduated from the School of Medicine at Aristotle University of Thessaloniki and holds a postgraduate degree in Sports Medicine. Dr. Papathanasiou specialized in General Surgery and subsequently in Orthopedic Surgery & Traumatology and Pediatric Orthopedics at the hospitals of Florina, Serres, and the General Hospital of Thessaloniki “Hippokration.” He is a member of O.T.E.MA.TH (Orthopedic & Traumatology Society of Macedonia-Thrace) as well as the H.S.O.T. (Hellenic Society of Orthopedic Surgery & Traumatology). Beyond his private clinics, he served as a scientific collaborator in the Orthopedic Department of Naousa Hospital and is the official Orthopedic physician for the Thessaloniki sports clubs “Aias Evosmos,” “Deka,” “Gefyra,” “Dimokritos,” and “Odysseas Kordeliou.” He manages a wide range of cases across the full spectrum of his specialty and has performed a significant number of surgical procedures.

Ο Ορθοπαιδικός Χειρουργός Στέλιος Παπαλεξανδρής είναι πτυχιούχος της Ιατρικής Σχολής του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης. Απέκτησε τίτλο ειδικότητας ορθοπαιδικού-χειρουργού (2008), μετά από εκπαίδευση στην Ελλάδα και το Ηνωμένο Βασίλειο, όπου και εξειδικεύθηκε στους τομείς της αρθροσκοπικής χειρουργικής (2008-2009), της επανορθωτικής χειρουργικής του ισχίου και του γόνατος (2016-2018 & 2020-2021) και του ορθοπαιδικού τραύματος (2018-2020). Έχει εργασθεί ως ειδικός ορθοπαιδικός στην Ελλάδα και το Ηνωμένο Βασίλειο. Διετέλεσε μέλος της ιατρικής ομάδας του ιατρικού κέντρου του ΣΕΓΑΣ στη Θεσσαλονίκη και ιατρός αγώνων ποδοσφαίρου όλων των εθνικών κατηγοριών και του Κυπέλλου Ελλάδος. Το 2024 εντάχθηκε στο Ειδικό Σώμα Ιατρών του Κέντρου Πιστοποίησης Αναπηρίας (ΚΕ.Π.Α.) του e-ΕΦΚΑ. Απέκτησε την ιδιότητα του μέλους του Βασιλικού Κολλεγίου Χειρουργών του Ηνωμένου Βασιλείου (Fellow of the Royal College of Surgeons), της Ευρωπαϊκής Επιτροπής Ορθοπαιδικής και Τραυματολογίας (Fellow of the European Board of Orthopaedics and Traumatology) και του Κολλεγίου Ελλήνων Ορθοπαιδικών Χειρουργών (ΚΕΟΧ), κατόπιν επιτυχούς συμμετοχής σε ειδικές εξετάσεις. Είναι υποψήφιος διδάκτορας του Δημοκρίτειου Πανεπιστημίου Θράκης, με επιστημονικό αντικείμενο το Μάρκετινγκ και τη Διοίκηση στην Υγεία. Είναι κάτοχος μεταπτυχιακών τίτλων σπουδών στη «Διοίκηση Μονάδων Υγείας», τη «Μεθοδολογία Βιοϊατρικής Έρευνας, Βιοστατιστική και Κλινική Βιοπληροφορική», την «Εκπαίδευση Ενηλίκων» και τη «Βιοηθική». Συνέβαλε στην ανάπτυξη κατευθυντήριων οδηγιών, ως αναπληρωτής συντονιστής της Επιτροπής Ανάπτυξης Κατευθυντήριων Οδηγιών Γενικής Ιατρικής για την Οσφυαλγία, στο πλαίσιο του Επιχειρησιακού Προγράμματος «Διοικητική Μεταρρύθμιση 2007-2013», που υλοποιήθηκε από το Πανεπιστήμιο Κρήτης. Έχει συμμετάσχει στη συγγραφή βιβλίου ορθοπαιδικού τραύματος και έχει συγγράψει εγχειρίδιο πρώτων βοηθειών. Επιστημονικές εργασίες του έχουν δημοσιευθεί σε ελληνικά και διεθνή ιατρικά περιοδικά, και έχουν ανακοινωθεί σε πλήθος ελληνικών και διεθνών επιστημονικών συνεδρίων.

Από το ακαδημαϊκό έτος 2021-2022, διεξάγει διδακτικό και ερευνητικό έργο, ως ακαδημαϊκός υπότροφος, στο Πανεπιστήμιο Δυτικής Μακεδονίας (Τμήμα Εργοθεραπείας, Τμήμα Μαιευτικής και Τμήμα Στατιστικής και Ασφαλιστικής Επιστήμης). Ως ειδικός ορθοπαιδικός έχει διδακτικό έργο στο πλαίσιο της πρακτικής εκπαίδευσης ειδικευομένων ορθοπαιδικής και φοιτητών ιατρικής των Πανεπιστημίων του Manchester και του Liverpool του Ηνωμένου Βασιλείου. Είναι εκπαιδευτής στο ιατρικό σεμινάριο ATLS (Advanced Trauma Life Support – provider & instructor course) στην Ελβετία και την Ελλάδα. Έχει διατελέσει εκπαιδευτής στο ΙΕΚ του ΕΚΑΒ και το Πρόγραμμα Μεταπτυχιακών Σπουδών «Επείγουσα Προνοσοκομειακή Ιατρική» του ΕΚΑΒ και εκπαιδευτής πρώτων βοηθειών σε σεμινάρια για επαγγελματίες υγείας και τον γενικό πληθυσμό. Είναι πιστοποιημένος εκπαιδευτής προγραμμάτων του Ευρωπαϊκού Συμβουλίου Αναζωογόνησης (European Resuscitation Council - ERC).

Emmanouil Skotidis is an Orthopedic Surgeon specializing in the diagnosis and treatment of musculoskeletal disorders, with an emphasis on degenerative joint diseases, hip arthroplasty, and knee arthroplasty. He maintains a private practice in Porto Rafti. He systematically works with total hip arthroplasty using the anterior approach, a modern, minimally invasive technique that allows for faster mobilization, reduced postoperative pain, and quicker return to daily activities. Additionally, he performs total knee arthroplasty to address severe osteoarthritis and chronic knee pain, utilizing personalized surgical planning. His expertise also includes traumatology of the upper and lower extremities as well as the management of sports injuries, both through conservative treatment and surgical reconstruction when indicated. He conducts comprehensive orthopedic examinations of the upper extremity aimed at accurate diagnosis and rational treatment. Furthermore, he provides osteoporosis screening and management, focusing on fracture prevention and the maintenance of functionality. His approach is based on contemporary medical knowledge, evidence-based decision-making, and thorough patient education.