1. «Αντιμετώπιση Ψευδαρθρώσεων σκαφοειδούς με αγγειούμενο μόσχευμα κερκίδας»
Χατζηνικολάου Ν, Γιαννούλη Φ, Δημητριάδη Κ., Τζινιέρη Ν.,Φανδρίδη Ε.,Νικολαίδη Β, Γεροσταθόπουλο Ν.
20^ο Παγκύπριο Ορθοπαιδικό Συνέδριο, Πάφος 06-08/11/09, Βραβείο καλύτερης εργασίας μεταξύ όλων των εργασιών.

2.  Comparison of treatment methods for calcaneal fractures – ORIF vs Ilizarov technique
Demetriades K.Α,Galanakos S,Karapatakis K.,Evangelopoulos D ,Panayi K.,Christodoulou E., Nikolaides V.D
D orthopaedic department, KAT General Hospital , Athens , Greece
7^th European Foot and Ankle Society Congress, Villamoura , 2008 .
 

3.  The treatment of crush injuries on the foot with concomintant multiple metatarsal fractures
Kouris N.K, Demetriades K.A ,Polyzois V.D, Iordanidis A.P,Evangelopoulos D.N ,Nicolaides V.D
D orthopaedic department , KAT General Hospital , Athens , Greece
7^th European Foot and Ankle Society Congress, Villamoura , 2008 .
 

4. Tibiotalar arthrodesis ; a salvage solution in difficult cases of distal tibial malunion
Panayi K. ,Karapatakis K.V .,Papadakis  S.A , Demetriades K.A, Polyzois V.D, Nikolaides V.D
D orthopaedic department , KAT General Hospital , Athens , Greece
7^th European Foot and Ankle Society Congress, Villamoura , 2008 .

5. Radial head fracture; comparison of fixation, replacement and excision.
NIKOLAIDES V., GALANACOS S.,KOURIS N., DEMETRIADΕS K., CHRISTODOULOU E., EVANGELOPOULOS D.
D orthopaedic department , KAT General Hospital , Athens , Greece
21^ST congress of the European Society for Surgery of the Shoulder and Elbow  (SECEC – ESSE)
BELGIUM – BRUGGE, 17- 20 September 2008 (Poster Presentation)

6. Distal Humerus wide excision and endoprosthetic replacement in a patient with total elbow postraumatic ankylosis and extensive joint disorganization : A case report .
I Ignatiadis,D Arapoglou  , V Polyzois ,E Pateromihelakis ,S Liarokapis ,K Dimitriadis , N Gerostathopoulos .
Department of Upper Limp , Hand Surgery and Microsurgery , KAT General Hospital , Athens , Greece
XV^th Congress of the Federation of Societies for Surgery of the Hand
Bucharest , Romania , June 23-26 ,2010
 

7. Kite flap for treating pulp thumb neuroma in a professional musician : A case report .
I Ignatiadis, S  Galanakos, D Arapoglou, N Hatzinikolaou, S Liarokapis, K Dimitriadis , N Gerostathopoulos .
Department of Upper Limp , Hand Surgery and Microsurgery , KAT General Hospital , Athens , Greece
XV^th Congress of the Federation of Societies for Surgery of the Hand
Bucharest , Romania , June 23-26 ,2010 .
 

8. Reversed Fasciocutaneus Flap based on two pedicle vascularization principle – both axial and perforators based flap(sural – distal peroneal flap). A case report .
I Ignatiadis, E Pateromihelakis,  D Arapoglou, K Dimitriadis , N Gerostathopoulos .
Department of Upper Limp , Hand Surgery and Microsurgery , KAT General Hospital , Athens , Greece
10^th Congress of the European Federation of Societies for  Microsurgery
Genova ( Italy ) , May 20^th – 22^nd 2010 .
 

9. Comminuted intra-articular fractures of the distal humerus in elderly patients. Results of conservative or minimally invasive surgical treatment.
Kyriacos Demetriades,Konstantinos Reppas, Vasilios Nicolaides, Konstantinos Karapatakis , Spyros Galanakos , Stamatios A. Papadakis
D orthopaedic department , KAT General Hospital , Athens , Greece
Mediterranean Trauma Conference .
Ayia Napa (Cyprus)  . 29^th Sept. – 01^st Oct. 2011 .

10. Femoral head fractures in elderly patients. Choice of femoral stem with or not acrylic cement in hip hemiarthroplasty.
Konstantinos Reppas, Vasilios Nicolaides, Kyriacos Demetriades, Spyros Galanakos, Konstantinos Karapatakis , Stamatios A. Papadakis
D orthopaedic department , KAT General Hospital , Athens , Greece
Mediterranean Trauma Conference .
Ayia Napa (Cyprus)  . 29^th Sept. – 01^st Oct. 2011 .

11. Case report of acute tibia compartment syndrome with delayded post traumatic onset.
Kyriacos Demetriades, Stamatios A. Papadakis , Vasilios Nicolaides , Konstantinos Karapatakis , Spyros Galanakos, Konstantinos Reppas
D orthopaedic department , KAT General Hospital , Athens , Greece

Mediterranean Trauma Conference .
Ayia Napa (Cyprus) . 29^th Sept. – 01^st Oct. 2011 .
 

12. Fifteen presentations to Greek Orthopaedic’s Congress
 
13. Twenty presentations to Cyprus Orthopaedic’s Congress