1. G. Papachristou, N. Efstathopoulos, J. Lazarettos, A. Kalliakmanis, J. Sourlas, V. Nikolaou, and E. Chronopoulos . “Recurrent sprain of the ankle” J Bone Joint Surg Br Orthopaedic Proceedings, 2003 85-B: 212. (Abstract)
  2. N. Efstathopoulos, I. Lazarettos, V. Nikolaou, S. Plessas, I. Sourlas, A. Pilichou, and G. Papachristou. “The use of demineralized bone matrix in the filling of bone defects and the inducement of kalus formation.” J Bone Joint Surg Br Orthopaedic Proceedings, 2004 86-B: 157-158. [Abstract]
  3. G. Papachristou, V. Nikolaou, S. Plessas, I. Sourlas, I. Lazarettos, and N. Efstathhopoulos. “comparison of reliability of the clinical evaluation, MRI and arthroscopy in detecting injuries in the knee” J Bone Joint Surg Br Orthopaedic Proceedings, 2004 86-B: 164. [Abstract]
  4. N. Efstathopoulos, J. Lazarettos, G. Papachristou, S. Tsifetakis, K. Panousis, and B. Nikolaou.  “The use of demineralized bone matrix in the filling of bone defects (preliminary study)” J Bone Joint Surg Br Orthopaedic proceedings, 2004 86-b: 253. [Abstract]
  5. E. Bathrelos, E.J. Giamarellos-Bourboulis, N. Efstathopoulos, J. Lazarettos, V. Nikolaou, A. Papalois, P. Grecka. “Is multiple trauma accompanied by bacterial translocation? An experimental model.” Clinical Microbiology and Infection, Volume 10, Supplement 3, 2004  [Abstract].
  6. S. Pneumaticos, V.S. Nikolaou, C. Psychas, E. Chronopoulos, G. Papachristou “Intramedullary nailing for the treatment of subtrochanteric hip fractures. A prospective study.” European Journal of Trauma. Volume 32, Supplement 1. April 2006 [Abstract]
  7. N. Efstathopoulos, E.J. Giamarellos Bourboulis, J. Lazarettos, V. Nikolaou, F. Baziaka, and C. Panousis “Is bacterial translocation commonly associated with multiple trauma? an experimental study.” J Bone Joint Surg Br Proceedings, Mar 2006; 88-B: 164.
  8. N. Efstathopoulos, V. Nikolaou, J. Lazarettos, X. Psixas, F. Xypnitos, and G. Papachristou “Intramedullary fixation of pertrochanteric hip fractures: a comparison of two implant designs.”J Bone Joint Surg Br Proceedings, Mar 2006; 88-B: 70 – 71.
  9. J. Lazarettos, V. Nikolaou, N. Efstathopoulos, S. Pneumaticos, S. Plessas, and G. Papachristou “combination of external fixation and norian s.r.s in the treatment of comminuted distal radius fractures” J Bone Joint Surg Br Proceedings, Mar 2006; 88-B: 179.
  10. S. Pneumaticos, V. Nikolaou, C. Savvidou, and P. Tsiolis. Comparison of primary total hip replacements performed with a standard posterior incision or a posterior mini-incision. J Bone Joint Surg Br Proceedings, Mar 2009; 91-B: 67.
  11. N. Efstathopoulos, E.J. Giamarellos Bourboulis, J. Lazarettos, V. Nikolaou, T. Tsaganos, P. Koutoukas, A. Papalois, P. Tsiolis, and F. Xypnitos.
    Elution of linezolid by a polylactic acid local antimicrobial delivery system. J Bone Joint Surg Br Proceedings, Mar 2009; 91-B: 129.
  12. S.G. Pneumaticos, S.N. Chatziioannou, C. Savvidou, V. Nikolaou, P. Zoumboulis, and E. Lambiris. Kyphoplasty: what is its effect in kyphotic deformity. J Bone Joint Surg Br Proceedings, Mar 2009; 91-B: 70 – 71.
  13. N. Efstathopoulos, V. Nikolaou, P. Tsiolis, I. Lazarettos, T. Tsaganos, P. Koutoukas, K. Frangia, D. Korres, E. Giamarellos-bourboulis. EXPERIMENTAL MRSA OSTEOMYELITIS TREATMENT BY A BIODEGRADABLE POLYLACTIDE SYSTEM RELEASING LINEZOLID. Orthopaedic Proceedings May 2010 92-B: 314-314
  14. V. Nikolaou, T. Lindner, N. Kanakaris, P. Giannoudis . IS FRACTURE HEALING DELAYED IN OSTEOPOROTIC PATIENTS?   Orthopaedic Proceedings May 2010 92-B: 332-332
  15. V. Nikolaou, S. Fogerty, P. Giannoudis, N. Kanakaris, A. Papathanasopoulos. THE EFFECT OF COMPARTMENT SYNDROME AND FASCIOTOMIES ON THE HEALING OF CLOSED TIBIAL DIAPHYSEAL FRACTURES. Orthopaedic Proceedings October 2010 92-B: 497-497
  16. N. Kanakaris, P. Giannoudis, V. Nikolaou, A. Papathanasopoulos. LATERAL COMPRESSION TYPE I INJURIES OF THE PELVIC RING – ARE THEY MECHANICALLY STABLE?   Orthopaedic Proceedings October 2010 92-B: 551-551
  17. P. Giannoudis, G. Haidukewych, D. Horwitz, N. Kanakaris, V. Nikolaou, S. Sems. PROXIMAL TIBIAL FRACTURES: EARLY EXPERIENCE USING POLYAXIAL LOCKING PLATE TECHNOLOGY. Orthopaedic Proceedings October 2010 92-B: 548-548
  18. N. Kanakaris, I.N. Papadopoulos, S. Bonovas, C. Leukids, V. Nikolaou, P.V. Giannoudis. PELVIC FRACTURES. AN INDEX INJURY THAT CAN BE USED AS A TEMPLATE FOR EVALUATION OF TRAUMA CARE. Orthopaedic Proceedings January 2011 93-B: 20-21
  19. V.S. Nikolaou, N.K. Kanakaris, N. Efstathopoulos, G. Kontakis, P.V. Giannoudis. THE INFLUENCE OF OSTEOPOROSIS IN FEMORAL FRACTURE HEALING TIME. Orthopaedic Proceedings January 2011 93-B: 22-22
  20. S. Fogerty, S. Nakhjavani, V.S. Nikolaou, P.V. Giannoudis. THE EFFECT OF COMPARTMENT SYNDROME AND FASCIOTOMIES ON THE HEALING OF CLOSED TIBIAL DIAPHYSEAL FRACTURES. Orthopaedic Proceedings January 2011 93-B: 11-11
  21. S. Fogerty, E. Tsiridis, V.S. Nikolaou, N.K. Kanakaris, P.V. Giannoudis. STABILISATION OF SEGMENTAL HUMERAL FRACTURES: INCIDENCE OF COMPLICATIONS AND FUNCTIONAL OUTCOME. Orthopaedic Proceedings January 2011 93-B: 37-37
  22. I. Pountos, V.S. Nikolaou, J. Morley, H.C. Pape, P.V. Giannoudis. ANALYSIS AND OSTEOGENIC POTENTIAL OF HUMAN SERUM ISOLATED AFTER FRACTURE. Orthopaedic Proceedings January 2011 93-B: 18-1
  23. E. Katsoulis, N.K. Kanakaris, V.S. Nikolaou, C. Court-Brown, P.V. Giannoudis. EFFECTIVENESS OF AUTOLOGOUS BONE GRAFTING FOR THE TREATMENT OF FRACTURE NON-UNIONS OF THE LOWER EXTREMITY. Orthopaedic Proceedings January 2011 93-B: 11-1
  24. Vasileios Nikolaou, Viviane Khoury, Olga Huk, Alain Petit, Stephane Bergeron, David Zukor, John Antoniou. MRI EVALUATION OF PAINFUL HIP AFTER METAL-ON-METAL TOTAL HIP ARTHROPLASTY. Orthopaedic Proceedings May 2011 93-B: 130-130
  25. Vasileios Nikolaou, Alain Petit, Olga Huk, David Zukor, Stephane Bergeron, John Antoniou. SEMEN METAL ION LEVELS AND SPERM QUALITY IN PATIENTS WITH METAL ON METAL TOTAL HIP REPLACEMENT. Orthopaedic Proceedings May 2011 93-B: 130-130
  26. Peter Giannoudis, Nikolaos Kanakaris, Vassilios Nikolaou, Nikolaos Prevezas. ACETABULAR FRACTURES WITH MARGINAL IMPACTION: CLINICAL RESULTS. Orthopaedic Proceedings May 2011 93-B: 185-185
  27. N.E. Efstathopoulos, J. Sourlas, J. Lazarettos, V. Nikolaou, E. Brilakis, F.N. Xypnitos. TREATMENT OF ACUTE RUPTURES OF ACL WITH AN ACHILLES TENDON ALLOGRAFT. Orthopaedic Proceedings July 2011 93-B: 358-358
  28. P.V. Giannoudis, N.K. Kanakaris, P. Stavlas, V.S. Nikolaou, N. Prevezas. ACETABULAR FRACTURES WITH MARGINAL IMPACTION: CLINICAL RESULTS. Orthopaedic Proceedings July 2011 93-B: 370-370
  29. P.V. Giannoudis, N.K. Kanakaris, V. Nikolaou, D. Morell, N. Prevezas. ACETABULAR FRACTURES WITH MARGINAL IMPACTION: CLINICAL RESULTS. Orthopaedic Proceedings July 2011 93-B: 306-306
  30. P.V. Giannoudis, N.K. Kanakaris, C. Tzioupis, V.S. Nikolaou, G. Kontakis. TISSUE DEBRIDEMENT AND BACTERIAL REMOVAL IN A PORCINE MODEL: A COMPARATIVE STUDY OF WATERJET (VERSAJET) HYDROSURGERY SYSTEM AND PULSE LAVAGE. Orthopaedic Proceedings July 2011 93-B: 362-362
  31. N.E. Efstathopoulos, F.N. Xypnitos, V. Nikolaou, J. Lazarettos, E.N. Kaselouris, D.T. Venetsanos, C.G. Provatidis. INVESTIGATION OF A TROCHANTERIC FINAIL INTRAMEDULLARY IMPLANT FIXATION USING THE FINITE ELEMENT METHOD. Orthopaedic Proceedings July 2011 93-B: 356-356
  32. John Antoniou, Alain Petit, Vassilios S Nikolaou, Constantin Papanastasiou, Fackson Mwale, David J Zukor, Olga L Huk. COBALT AND CHROMIUM IONS HAVE NO DETRIMENTAL EFFECT ON SEMEN PARAMETERS IN YOUNG PATIENTS WITH METAL-ON-METAL TOTAL HIP REPLACEMENT . Orthopaedic Proceedings November 2011 93-B: 567-56
  33. James Waddell, Robert Baird, Vasileios Nikolaou, Emil Schemitsch. Outcome of Revision Total Hip Arthroplasty Using the Echelon Revision Stem. Orthopaedic Proceedings June 2012 94-B: 6-6
  34. James Waddell, Vasileios Nikolaou, Max Edwards, Earl Bogoch, Emil Schemitsch. A Prospective Randomized Controlled Trial Comparing Three Alternative Bearing Surfaces in Primary Total Hip Arthroplasty . Orthopaedic Proceedings June 2012 94-B: 173-173
  35. James Waddell, Max Edwards, Michael Lutz, Oliver Keast-Butler, Benjamin Escott, Emil Schemitsch, Vassilios Nikolaou. The Effect on Radiographic Osseointegration of Geometric Variations in Acetabular Component Design . Orthopaedic Proceedings June 2012 94-B: 172-172
  36. James P Waddell, Vassilios Nikolaou, Max Edwards, Earl Bogoch, Emil H Schemitsch. A PROSPECTIVE RANDOMISED CONTROLLED TRIAL COMPARING THREE ALTERNATIVE BEARING SURFACES IN PRIMARY TOTAL HIP ARTHROPLASTY. Orthopaedic Proceedings September 2012 94-B: 107-107
  37. V. Nikolaou, M. Edwards, E. Bogoch, E. Schemitsch, J. Waddell. A PROSPECTIVE RANDOMIZED CONTROLLED TRIAL COMPARING THREE ALTERNATE BEARING SURFACES IN PRIMARY TOTAL HIP ARTHROPLASTY. Orthopaedic Proceedings September 2012 94-B: 110-110
  38. Michael-Alexander Malahias, Vasileios S. Nikolaou, Maria-Kyriaki Kaseta, Andreas Kantzios, Nikolaos Vergados, George C. Babis. A percutaneous sonographically assisted technique as a minimally invasive treatment of trigger finger patients: Clinical outcome. The Journal of Hand Surgery (European Volume), 41E (Supplement 1) S1–S114,  2016
  39. Michael-Alexander Malahias, Vasileios S. Nikolaou, Emmanuel Fandridis, Sotirios Kazas, Emmanuel Avramidis, George C. Babis.Basal thumb arthrosis: Clinical outcome of sonographically guided versus empirical. Clinical outcome. The Journal of Hand Surgery (European Volume), 41E (Supplement 1) S1–S114,  2016
  40. Michael-Alexander Malahias, Vasileios S. Nikolaou, Sotirios-Tsampikos Kazas, Maria-Kyriaki Kaseta, Ioannis Sourlas, George C. Babis. Ultrasound-guided versus ‘blind’ infiltrations in the management of persistent lateral epicondylatis. Clinical outcome. The Journal of Hand Surgery (European Volume), 41E (Supplement 1) S1–S114,  2016
  41. M.A. Malahias, G.C. Babis, M.K. Kaseta, D. Chytas, S.T. Kazas, V.S. Nikolaou. EARLY ULTRASONOGRAPHY VERSUS LATE X-RAYS IN OCCULT SCAPHOID FRACTURES. Bone Jont Journal. Orthopaedic Proceedings Volume 99-B, Issue SUPP 901, May 2017
  42. M.A. Malahias, V.S. Nikolaou, I. Sourlas, D. Chytas, K. Chrysikopoulos, G.C. Babis. A NEW ULTRASOUND SCALE GRADING CARPAL TUNNEL SYNDROME. Bone Joint Journal , Orthopaedic Proceedings Volume 99-B, Issue SUPP 901.  May 2017
  43. V.S. Nikolaou, D. Chytas, M.A. Malahias, G.C. Babis. THE IMPACT OF THE ECONOMIC CRISIS ON ORTHOPAEDIC RESEARCH IN GREECE. Bone Joint Journal, Orthopaedic Proceedings Volume 99-B, Issue SUPP_901,  May 2017
  44. M.A. Malahias, G.C. Babis, M.K. Kaseta, D. Chytas, S.T. Kazas, V.S. Nikolaou. A COMPARATIVE STUDY OF ULTRASOUND-GUIDED INJECTIONS IN PALMAR APONEUROSITIS. Bone Joint Journal, Orthopaedic Proceedings, Volume 99-B, Issue SUPP_901, May 2017.
  45. M.A. Malahias, G.C. Babis, M.K. Kaseta, E. Chronopoulos, E. Fandridis, V.S. Nikolaou. COMPARING GUIDED TO BLIND DISSOLUTION OF SUPRASPINATUS CALCIFIC DEPOSITS. Orthopaedic ProceedingsVolume 99-B, Issue SUPP_901 May 2017.
  46. M. A. Malahais, G.C. Babis, E.O. Johnson, M.K. Kaseta, D. Chytas, V.S. Nikolaou. EVALUATION OF ULTRASOUND-GUIDED HYDRONEUROLYSIS IN CARPAL TUNNEL SYNDROME. Bone Joint Journal, Orthopaedic Proceedings, Volume 99-B, Issue SUPP_901,  May 2017