Orthopaedic - Orthopaedic Surgeons in Neo Psychiko

Orthopedic Surgeon Dr. Alkiviadis Kallivokas, BSc, MD, PhD, specializes in modern arthroscopic and arthroplasty surgery of the hip, knee, and shoulder, utilizing minimally invasive techniques (AMIS and MIS) and robot-assisted surgery, with the aim of rapid recovery, reduction of postoperative pain, and immediate return of patients to their daily activities. He holds degrees in Medicine and Biology from the University of Athens and a PhD in Orthopedics from the University of Patras, with significant scientific activity and publications in international scientific journals. He has been trained and worked at leading hospitals in Greece and the United Kingdom and has served as Director of Orthopedics and Traumatology at Homerton University Hospital in London. He possesses extensive experience in the management of diseases and injuries of major joints, including arthroscopies of the hip, knee, and shoulder, arthroplasty procedures, sports injuries, and orthopedic trauma. He collaborates with the Athens Medical Center (Neo Psychiko) and the Evgenidio Hospital, providing personalized therapeutic solutions focused on the needs of each patient. His medical approach is based on accurate diagnosis, comprehensive patient education, and the establishment of a trust-based relationship with the patient.

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.

Dr Spiliotopoulos Georgios is a graduate of Medical School and a PhD candidate in Orthopedics at the University of Patras. He specialized at the 401 General Military Hospital of Athens and further specialized in Orthopedic Sports Medicine and modern minimally invasive surgical corrective techniques (MIS). Since 2018, he has been a Forensic Orthopedic Expert (technical consultant) for major insurance companies. He maintains a clinic in Neo Psychiko and is the head of the surgical team OrthoSoma (Ortho-Body).

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.

Vottis Xristos MD, PhD is an Orthopedic Surgeon with private practices in Ilisia and Neo Psychiko. He holds a doctorate and a degree from the Medical School of the National and Kapodistrian University of Athens and trained for several years at the 1st Orthopedic Clinic of the same university, where he continues to serve as an active collaborator. Additionally, he has specialized in hip and knee arthroplasty surgeries at the Hospital for Special Surgery in New York, USA, and has been trained in hand surgery at the specialized Hand, Upper Limb, and Microsurgery Clinic at the General Hospital of Attica "KAT". Furthermore, he is an Associate Physician of the Iatriko Group as well as the Evgenidio Therapy Center. Finally, he is a member of the Athens Medical Association, the Hellenic Society of Orthopedic Surgery and Traumatology, the Hellenic Society of Hand Surgery, and the Medical Association of the United Kingdom.

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.

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. Papas Mixalis is an Orthopedic Surgeon with a private practice in Cholargos. He is a graduate and holds a PhD from the Medical School of the University of Patras. Additionally, he has received specialized training in Orthopedics and Traumatology at the University Clinic of the General Hospital of Rio. He has extensive experience in prosthetic surgery (hip, knee, shoulder), arthroscopic surgery (hip, knee, shoulder), management of osteoporotic vertebral fractures with kyphoplasty, percutaneous spinal fusion, and sports injuries.

Mprilakis Emmanouil is an Orthopedic Surgeon who maintains two private practices, in Palaio Faliro and Psychiko. He holds a PhD and is a graduate of the Medical School of the National and Kapodistrian University of Athens. He possesses the "Advanced Trauma Life Support" and “Musculoskeletal Ultrasound” certifications from the American College of Surgeons and the Burwin Institute of Canada, respectively. He specializes in large joint arthroplasty (hip, knee, shoulder), knee and shoulder arthroscopy, and sports injuries. His expertise in the surgery of these joints is attributed to his advanced training in innovative surgical techniques. Additionally, he has served as the Orthopedic Surgeon for the Olympiacos Piraeus women's basketball team (for 2 years) and for "Panionios GS" (for 7 years), and has collaborated with numerous high-level teams and athletes. He is the Deputy Director of the 3rd Orthopedic Clinic at "Hygeia" Hospital and the Athens Center for Arthroscopy and Shoulder Surgery. He serves as the Secretary of the Sports Injuries Department of the Hellenic Society of Orthopedic Surgery and Traumatology and is a member of committees of both the European (ESSKA) and the International (ISAKOS) Societies of Sports Injuries. Finally, he is an active member of 14 Greek and international scientific societies, has published numerous scientific articles and presentations in Greek and international journals, and has delivered lectures at Greek and international sports medicine conferences.

Deligeorgis Anastasios MD, MSc, Orthopaedic Surgeon - Sports Medicine Specialist, is Associate Director of the 3 rd Department of Orthopaedics, HYGEIA Private Hospital (Athens) and Scientific - Clinical Associate to the Centre of Shoulder Arthroscopy and Surgery (Athens). He treats the entire spectrum of orthopaedic diseases and sports injuries and holds a MSc in Sports Medicine (International Olympic Committee’s Diploma in Sports Medicine). Primary areas of specialization: advanced arthroscopy; minimally invasive techniques-MIS combined with fast- track protocols; robot-assisted arthroplasty using the MAKO Robotic-Arm Assisted Technology or navigators or digital systems; and biological therapies (platelet-rich plasma-PRP, stem cells). He received postgraduate training and worked in leading medical centres, both in Greece and abroad and next to pioneers in the field. Dr. Deligeorgis runs two offices—one in Ampelokipoi and one in Maroussi. Also, he is a highly educated native speaker of English.

Dr. Kormpakis Ioannis is an Orthopedic Surgeon - Traumatologist. He is the Director of the Orthopedic Clinic at Metropolitan General and the Director of the Upper Limb and Microsurgery Clinic. Since 2018, he has held a PhD from the Medical School of the National and Kapodistrian University of Athens and has specialized training from Washington University in the United States of America in Arthroscopic and Microsurgery of the Upper Limb (Shoulder - Elbow and Hand), Peripheral Nerves - Brachial Plexus as well as Ankle and Foot Surgery. Dr. Kormpakis Ioannis maintains private practices in Chalandri and Acharnes and performs numerous surgical procedures across a broad spectrum of Orthopedic and Traumatology conditions at private hospitals with which he collaborates (Metropolitan General, Therapis General, Athens Bioclinic, Medical Center, Mediterraneo Hospital). He is a member of the Hellenic Society of Reconstructive Microsurgery, the Hellenic Society of Orthopedic Surgery and Traumatology, and the Hellenic Society of Hand Surgery. Furthermore, he continues to publish numerous scientific papers in collaboration with world-renowned orthopedic surgeons in scientific journals based in the United States of America and the United Kingdom. Through his ongoing participation in numerous conferences in Greece and abroad and through his personal research on tendon and nerve injuries, he stays continually updated on surgical and conservative-regenerative treatment approaches for conditions such as arthropathies and tendon and nerve injuries.

Dr. Giannakos Athanasios-Rene S. is specialized in arthroscopic surgery of sports-related knee and shoulder injuries, as well as in M.I.S. Fast Track total knee and hip arthroplasty. He initiated and completed his Orthopedic Surgery and Traumatology residency at the University General Hospital of Larissa in the Orthopedic Clinic Department under the direction of Professor K.N. Malizos. He is a PhD candidate at the Medical School of the University of Thessaly. During the final year of his residency, he trained in shoulder and knee arthroscopic surgery at the Minimal Access Surgery Unit of the I.R.C.C.S. GSD Hospital, Milan, Italy, under Professor and Director Prof. Pietro Randelli. He also trained in M.I.S. Fast Track total hip and knee arthroplasty and arthroscopic surgery at the Luganese Hospital, Lugano, Switzerland, under Professor and Director Prof. Mateo Denti. Immediately after obtaining his specialty certification, he was appointed as a permanent consultant at the Minimal Access Surgery Unit of the I.R.C.C.S. GSD Hospital, Milan, Italy, under Professor and Director Prof. Pietro Randelli. He began his Sports Medicine specialty at the University Hospital Catanzaro, Italy, following entrance exams, holding a salaried position and scholarship from the E.U., under the direction of Professor Pietro Scotto di Vettimo. During the first year of the specialty, he trained at the University Hospital Chieti, Italy, in the Sports Medicine Department under the direction of Professor Leonardo Vecchiet. There are articles, lectures, and surgeries by him available online. He collaborates with "Athens Medical Center," "Mitera" Hospital, and Mediterraneo Hospital, and is a scientific collaborator. He maintains private practice offices in Chalandri and Nea Smyrni.

Avramidis Grigorios P. is an Orthopedic Surgeon – Sports Medicine Specialist and Deputy Director of the 3rd Orthopedic Clinic at HYGEIA. He maintains private practices in Chalkida and Marousi, Attica, and also conducts examinations and performs surgical procedures in Cyprus. He was born and raised in Chalkida and originates from Nafplio. He is a graduate of the Medical School of the University of Patras and holds a Master's Degree in "Osteoporosis and Metabolic Bone Diseases" from the Medical School of the University of Athens. He specializes in Arthroscopy, Robotic Arthroplasty, Hand Surgery, as well as Sports Injuries. He is officially certified in Robotic Hip and Knee Arthroplasty. He has received multiple scholarships and actively participates in scientific conferences in Greece and abroad, as well as in the authorship of scientific papers.

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.

Papaxristos Athanasios is an Orthopedic Surgeon, Director of the 5th Orthopedic Clinic at Euroclinic Athens, who maintains a private practice in the Ampelokipi area. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and, after completing his specialty training at the Attikon General Hospital KAT, specialized in the surgical management of sports injuries and degenerative hip and knee disorders, completing a fellowship program at the University Hospital of Leeds in the United Kingdom, recognized by the Royal College of Surgeons (RCS). He has developed a particular scientific interest in the management of post-traumatic and juvenile arthritis, having performed numerous surgeries both during his four-year fellowship training in hospitals in the United Kingdom and after his return to Greece.

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.

Ο Ασλανίδης Ηλίας MD,MSc,FEBOT είναι Στρατιωτικός Ιατρός, Ορθοπαιδικός και Διευθυντής Τμήματος Κάτω Άκρου και Επανορθωτικής Χειρουργικής Ποδός στη Ευρωκλινική Αθηνών. Διατηρεί Ιατρείο στους Αμπελόκηπους, Λουίζης Ριανκούρ 65-67 και στο Λαγονήσι. Είναι απόφοιτος της Ιατρικής Σχολής του Αριστοτέλειου Πανεπιστημίου Θεσσαλονίκης και Αριστούχος απόφοιτος της Στρατιωτικής Σχολής Αξιωματικών Σωμάτων (ΣΣΑΣ) (Υπαρχηγός Τάξης). Ειδικεύτηκε στην Ορθοπαιδική και Τραυματολογία για 1,5 χρόνο στο 401 Γενικό Στρατιωτικό Νοσοκομείο Αθηνών, 6 μήνες στην Γ΄ Ορθοπαιδική Κλινική του ΚΑΤ Γενικό Νοσοκομείο Αττικής και 3 χρόνια στο Great Western Hospital του Σουίντον στο Ηνωμένο Βασίλειο, όπου και ολοκλήρωσε την εκπαίδευση του. Είναι κάτοχος και αριστούχος του μεταπτυχιακού διπλώματος Μεταβολικών Νοσημάτων των Οστών του Εθνικού & Καποδιστριακού Πανεπιστημίου Αθηνών. Κατά τη διάρκεια της ειδικότητας του στο Ηνωμένο Βασίλειο εκπαιδεύτηκε για 6 μήνες στην άκρα χείρας και μικροχειρουργική, 6 μήνες στις παθήσεις ώμου και αγκώνος, 6 μήνες στις παθήσεις ισχίου, 6 μήνες στις παθήσεις σπονδυλικής στήλης και 1 χρόνο στις παθήσεις γόνατος και αθλητικών κακώσεων. Συνέχισε την εξειδίκευση του στο κάτω άκρο και στις αθλητικές κακώσεις (συμπεριλαμβανομένου παιδιών και εφήβων) για 1 χρόνο στο Σουίντον του Ηνωμένου Βασιλείου (Senior Fellow) με διενέργεια μεγάλου αριθμού εξειδικευμένων επεμβάσεων υπ’ ευθύνη του. Eργάζεται ως επιμελητής της Β' Ορθοπαιδικής του 401 Γενικού Στρατιωτικού Νοσοκομείου Αθηνών και είναι Διευθυντής του Υγειονομικού Τμήματος της Ζ' Μοίρας Αμφιβίων Καταδρομών. Είναι Διευθυντής Τμήματος Κάτω Άκρου και Επανορθωτικής Χειρουργικής Ποδός στη Ευρωκλινική Αθηνών ενώ επιπλέον είναι Sports Medicine Consultant της Tangram Sports Management, εταιρείας που διαχειρίζεται μεγάλο αριθμό επαγγελματιών παικτών μπάσκετ σε όλη την Ευρώπη. Παρέχει ιατρικές συμβουλές για την αντιμετώπιση αθλητικών κακώσεων σε επαγγελματικές ομάδες μπάσκετ τόσο της Ευρώπης (Euroleague, Eurocup, Liga ACB, BBL, LNB Pro A κ.α.) όσο και της Ασίας. Στο παρελθόν έχει διατελέσει ιατρός και σε άλλες μονάδες των ειδικών δυνάμεων με συμμετοχή σε διάφορα σχολεία του Ελληνικού Στρατού (Ελεύθερης Πτώσης, Καταδυτικής Ιατρικής), καθώς και ιατρός αγώνων ποδοσφαίρου (ΕΠΣΑ,ΕΠΣΑΝΑ,ΕΠΣΔΑ,ΕΠΣΠ, Football Leaue,Football League 2, Superleague Νέων) και πολεμικών τεχνών (πανελλήνιο πρωτάθλημα παγκρατίου, καράτε κ.α.). Είναι μέλος του Ιατρικού Συλλόγου του Ηνωμένου Βασιλείου (GMC Specialty Registry) και της Βρετανικής Ορθοπαιδικής Εταιρείας Ποδός και Ποδοκνημικής (BOFAS). Έχει συμμετάσχει στο παρελθόν σε πληθώρα συνεδρίων ελληνικών και διεθνών. Έχει εξειδικευτεί στο κάτω άκρο και στις αθλητικές κακώσεις με ιδιαίτερο ενδιαφέρον το γόνατο , την ποδοκνημική και τον άκρο πόδα. Είναι ένας από τους λίγους χειρουργούς στην Ελλάδα με επίσημη εξειδίκευση στο πόδι και την ποδοκνημική στο εξωτερικό ( Foot and Αnkle Fellow). Είναι υπότροφος της Ευρωπαϊκής Επιτροπής Ορθοπαιδικής και Τραυματολογίας κατόπιν ειδικών εξετάσεων και αυτήν την περίοδο είναι συνεργάτης της Ευρωκλινικής Αθηνών, της Βιοκλινικής Αθηνών, του Θεραπευτηρίου ΥΓΕΙΑ, ΜΗΤΕΡΑ και του Ιατρικού Κέντρου Αθηνών. Λόγω της ενασχόλησης του για χρόνια με τον αθλητισμό-έχοντας υπάρξει ο ίδιος ποδοσφαιριστής - και γνωρίζοντας πλέον και τις δύο όψεις αθλητή και ιατρού διαθέτει μεγάλη εμπειρία στις αθλητικές κακώσεις και στην ταχεία επιστροφή των αθλητών στις επαγγελματικές τους δραστηριότητες. Υπηρετώντας επιπλέον για περισσότερο από 6 χρόνια σε μονάδες Ειδικών Δυνάμεων έχει αναλάβει μεγάλο αριθμό δύσκολων περιπτώσεων που έχει φέρει εις πέρας με μεγάλη επιτυχία, βασιζόμενος στις ιδιαιτερότητες των υψηλών απαιτήσεων ασθενών με στόχο την ταχεία αποκατάσταση και την πλήρη επιστροφή στην υπηρεσία.

Grigorios Sasalos is an Orthopedic Surgeon, Consultant at the Orthopedic Clinic of Metropolitan Hospital, and maintains a private practice in Galatsi. He graduated from the Medical School of the National and Kapodistrian University of Athens. He received a scholarship from the State Scholarships Foundation to undertake a postgraduate program at the National School of Public Health. He completed his specialization at the First University Clinic of the National and Kapodistrian University of Athens. He has served for several years as an unpaid Scientific Collaborator at the Second University Clinic of the National and Kapodistrian University of Athens. He has participated in numerous international conferences, specialized seminars on new techniques, and educational courses. He manages cases across the entire spectrum of reconstructive surgery, hip and knee arthroplasty, with a particular interest in minimally invasive SuperPATH hip arthroplasty. He also undertakes arthroscopic repair of sports injuries in cases unresponsive to conservative treatment.

Ο Μαλαχιάς Μιχαήλ-Αλέξανδρος είναι Ορθοπαιδικός Χειρουργός-Αθλητίατρος και Επίκουρος Καθηγητής Ορθοπαιδικής στην Ιατρική Σχολή EUC Φρανκφούρτης (Γερμανία). Διατηρεί το ιδιωτικό του ιατρείο στο Χαλάνδρι. Είναι πτυχιούχος και Διδάκτωρ της Ιατρικής Σχολής του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών. Ο ιατρός εξειδικεύεται στην αρθροσκοπική και επανορθωτική (αρθροπλαστικές) χειρουργική του ώμου, του γόνατος και του ισχίου. Επιπλέον, θεωρείται expert στις νέες βιολογικές θεραπείες (PRP) με καθοδήγηση υπερήχου (πρώτο Διδακτορικό στην Ελλάδα πάνω στο εν λόγω πεδίο), αλλά και στη θεραπεία των αθλητικών κακώσεων, όπου έχει λάβει την εθνική κλινική υποτροφία «Γεώργιος Νούλης», της Ελληνικής Αρθροσκοπικής Εταιρείας (αντιμετώπιση ρήξης μηνίσκου, ρήξης χιαστού, χόνδρινων βλαβών, αρθροσκόπηση ισχίου σε νέους, αρθροσκόπηση ώμου για ρήξη τενόντων στροφικού πετάλου, εξάρθρημα, κτλ.). Η μετεκπαίδευσή του (complex joint reconstruction fellowship) στο πεδίο της ελάχιστα επεμβατικής ρομποτικής αρθροπλαστικής γόνατος & ισχίου έχει πραγματοποιηθεί στο Hospital for Special Surgery (Νέα Υόρκη), το οποίο αξιολογείται, επί 12 συναπτά έτη, ως το κορυφαίο (Νο1) ορθοπαιδικό νοσοκομείο των ΗΠΑ. Πέραν τούτου, έχει μετεκπαιδευτεί, επί σειρά ετών (clinical fellowships), στον τομέα της αρθροσκοπικής χειρουργικής και της αντιμετώπισης αθλητικών κακώσεων, σε διεθνή ακαδημαϊκά κέντρα του υψηλότερου επιπέδου (ESSKA teaching centers), όπως η Clinica Ars Medica (Λουγκάνο, Ελβετία), και η ATOS Klinik (Χαϊδελβέργη, Γερμανία). Ο Επ. Καθηγητής Ορθοπαιδικής, κος Μαλαχιάς, είναι αναγνωρισμένος σε διεθνή συνέδρια για την ακαδημαϊκή κλινική έρευνά του και έχει συμμετάσχει σε άνω των 110 επιστημονικών ερευνών, δημοσιευμένων σε έγκριτα διεθνή περιοδικά (του Pubmed). Μετά από πολυετή χειρουργική εξειδίκευση στο εξωτερικό, επιστρέφει στη γενέτειρά του, την Αθήνα, για να ασκήσει την ορθοπαιδική επιστήμη, ως Διευθυντής της Γ’ Ορθοπαιδικής Κλινικής στο Therapis General Hospital, με βάση τα πλέον σύγχρονα διεθνή πρότυπα και επίκεντρο τον άνθρωπο.