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   12 Omirou Sq., 45332, Ioannina        2651402467         ristanis@gmail.com

Scientific Activity

AWARDS – HONORS

  • Best research paper award – 500€ (2003) “Prospective evaluation of 110 patients treated with botulinum toxin type A for limb spasticity.” Papadonikolakis A, Vekris M, Korompilias A, Kostas J.P, Kontogeorgakos V., Ristanis S., Soucacos PN; 22nd Annual Conference, Orthopaedic & Traumatology Association, Macedonia-Thrace. Chalkidiki, Greece
  • Knee Surgery Sports Traumatology & Arthroscopy Editorial comment for the importance of the research work entitled: The Effects of Anterior Cruciate Ligament Reconstruction on Tibial Rotation during Pivoting after Descending Stairs” Ristanis S., Giakas G., Papageorgiou CD., Moraiti T., Stergiou N., Georgoulis A.D. KSSTA (2003) Volume 11, Number 6; pages 360-365
  • Best clinical paper award EEXOT – 5000€ (2005) “Effectiveness of reconstruction of the ACL with quadrupled hamstrings and bone-patellar-tendon-bone autografts. An in-vivo study comparing tibial internal-external rotation” Chouliaras V, Ristanis S, Moraiti C, Stergiou N, Georgoulis AD. 61ο ANNUAL CONGRESS OF THE GREEK ORTHOPAEDIC SOCIETY (ΕΕΧΟΤ), Athens
  • Amongst the final 7 best international research papers for the Young Investigator’s (Y-ROBOT) Award– (2005) “Current ACL reconstruction techniques with a BPTB or quadrupled hamstrings graft do not restore normal tibial rotation”. Ristanis S, Chouliaras V, Moraiti C, Stergiou N, Georgoulis A. 9TH INTERNATIONAL CONFERENCE OF ORTHOPAEDICS, BIOMECHANICS AND SPORT REHABILITATION, November 2005, ASSISI (PERUGIA), ITALY.
  • Young Researcher’s Award (<40 years) ESSKA – 1500€ (2006) “The effectiveness of reconstruction of the ACL with quadrupled hamstrings and bone-patellar tendon-bone autοgrafts. An in-vivo study comparing tibial rotation”. Ristanis S, Chouliaras V, Moraiti C, Stergiou N, Georgoulis A. 12th CONGRESS OF EUROPEAN SOCIETY OF SPORTS TRAUMATOLOGY, KNEE SURGERY AND ARTHROSCOPY (ESSKA), May 2006, INNSBRUCK, AUSTRIA
    – Published in ESSKA Newsletter, December issue 2006.
  • 2nd Best oral paper – “Dimitrios Rekoutis award” – 1000€ (2007): “An in-vivo investigation of the effect of the femoral tunnel placement during ACL reconstruction on tibial rotation” 2ND CONGRESS OF THE GREEK ASSOCIATION OF ARTHROSCOPY KNEE SURGERY AND SPORTS INJURIES – “GEORGE NOULIS”, Athens, June 2007
  • Amongst the final 6 best research papers for the ESSKA Star paper Award (2008) “The Effect of Different Femoral Tunnel Placement During ACL Reconstruction, on Tibial Rotation. An In-vivo examination” Ristanis S., Siarava E., Stergiou N., Georgoulis A.D. 13TH CONGRESS OF EUROPEAN SOCIETY OF SPORTS TRAUMATOLOGY, KNEE SURGERY AND ARTHROSCOPY (ESSKA), Porto, Portugal, May 21-24, 2008
  • Best oral paper – “Smirnas award” – 500€ (2008) “The electromechanical delay of the knee flexor muscles is impaired after harvesting the hamstrings tendons for ACL reconstruction” Ristanis S., Tsepis E, Giotis D, Stergiou N., Cerulli G, Georgoulis A.D. 22nd CONGRESS OF THE GREEK NATIONAL PHYSIOTHERAPY COMMUNITY, Athens, 14-16 November, 2008
  • Best oral paper award -1500€ (2009) “Evaluation with contrast-enhanced MRI of the revascularization process of the ACL graft after surgical reconstruction” A.Ntoulia, S. Ristanis, T. Moraiti, F. Papadopoulou, M. Argiropoulou, A. Georgoulis 3RD CONGRESS OF THE GREEK ASSOCIATION OF ARTHROSCOPY KNEE SURGERY AND SPORTS INJURIES – “GEORGE NOULIS”, CRETE, JUNE 2009
  • 2nd Best oral paper award (2009) “The role of contrast-enhanced MRI in the evaluation of the revascularization course of the ACL autograft” A. Ntoulia, F Papadopoulou, S. Ristanis, M. Argyropoulou, A Georgoulis 19th INTER-UNIVERSITY CONGRESS OF RADIOLOGY, Thessaloniki, Greece, November 12-15, 2009
  • 3rd Best oral paper award (2011) “Differences in peroneal electromechanical delay between patients with chronic ankle instability and healthy controls” D. Flevas, E. Pappas, S.Ristanis, C. Moraiti, A.D. Georgoulis 5th CONGRESS OF THE GREEK ASSOCIATION OF ARTHROSCOPY, KNEE SURGERY AND SPORTS INJURIES (EAE) – “GEORGE NOULIS”, Rethymnon Crete, 22-25 June, 2011, Greece
  • Outstanding Reviewer of the Year 2011 of the KSSTA Journal (2012) 15th CONGRESS OF EUROPEAN SOCIETY OF SPORTS TRAUMATOLOGY, KNEE SURGERY AND ARTHROSCOPY (ESSKA), May 2012, GENEVA, SWITZERLAND
    – Published in ESSKA Newsletter2012
  • Best oral paper award (2013) “PCL INDEX AS AN OBJECTIVE MRI TOOL TO EVALUATE ANATOMIC ACL RECONSTRUCTION” F. Zambeli, A. Ntoulia, D. Giotis, S. Ristanis, E. Pappas, A. Georgoulis 5TH CONGRESS OF THE GREEK ASSOCIATION OF ARTHROSCOPY KNEE SURGERY AND SPORTS INJURIES – “GEORGE NOULIS”, LARISA, 3-6 APRIL 2013

MEMBERSHIP IN SCIENTIFIC SOCIETIES

  • Associate Member (2004-2007) and Active Member (2008-2011) of the Orthopaedic Research Society (ORS)
  • Member of the European Society of Sports Traumatology, Knee Surgery & Arthroscopy ESSKA (2011-date)
  • Member of the Hellenic Association of Orthopaedic Surgery & Traumatology (HAOST) (2010-date)

PUBLICATIONS – BOOK CHAPTERS

  • Three chapters in “The Anterior Cruciate Ligament. Reconstuction and Basic Science” by C. Prodromos, MD (Publisher: SAUNDERS ELSEVIER, 2008)
  • One chapter in “Chondral defects and osteochondral lesions” by A. Georgoulis and I Michos (Publisher: Konstantaras Medical Eds, 2011), ISBN 978-960-6803-31-7

PUBLICATIONS – JOURNALS (PUBMED)

  1. Peroneal electromechanical delay and fatigue in patients with chronic ankle instability. Flevas DA, Bernard M, Ristanis S, Moraiti C, Georgoulis AD, Pappas E. Knee Surg Sports Traumatol Arthrosc. 2017 Jun;25(6):1903-1907 http://www.ncbi.nlm.nih.gov/pubmed/27401005
  2. Plantaris Excision and Ventral Paratendinous Scraping for Achilles Tendinopathy in an Athletic Population. Bedi HS, Jowett C, Ristanis S, Docking S, Cook J. Foot Ankle Int. 2016 Apr;37(4):386-93 http://www.ncbi.nlm.nih.gov/pubmed/26637273
  3. Lateral versus medial approach for intra-articular knee injections. Koulouvaris P, Lykissas M, Ristanis S, Aggelidakis G, Mavrodontidis A. Acta Orthop Traumatol Turc. 2015;49(1):37-40. http://www.ncbi.nlm.nih.gov/pubmed/25803251
  4. Zampeli F, Ntoulia A, Giotis D, Ristanis S, Mitsionis G, Pappas E, Georgoulis AD. “The PCL Index Is Correlated With the Control of Rotational Kinematics That Is Achieved After Anatomic ACL Reconstruction.” Am J Sports Med. 2014 Mar;42(3):665-74. http://www.ncbi.nlm.nih.gov/pubmed/24335494
  5. Ntoulia A, Papadopoulou F, Zampeli F, Ristanis S, Argyropoulou M, Georgoulis A. Evaluation with contrast-enhanced magnetic resonance imaging of the anterior cruciate ligament graft during its healing process: a two-year prospective study. Skeletal Radiol. 2013 Apr;42(4):541-52 http://www.ncbi.nlm.nih.gov/pubmed/23229627
  6. Lykoudis EG, Seretis K, Ristanis S. “Huge Recurrent Tumoral Calcinosis Needing Extensive Excision and Reconstruction: Report of a Rare Case and Brief Literature Review.” Aesthetic Plast Surg. 2012 Oct;36(5):1194-7 http://www.ncbi.nlm.nih.gov/pubmed/22653143
  7. Patras K, Zampeli F, Ristanis S, Tsepis E, Ziogas G, Stergiou N, Georgoulis AD. “Hamstring-Dominant Strategy of the Bone-Patellar Tendon-Bone Graft Anterior Cruciate Ligament-Reconstructed Leg Versus Quadriceps-Dominant Strategy of the Contralateral Intact Leg During High-Intensity Exercise in Male Athletes.” Arthroscopy. 2012 Sep;28(9):1262-70. http://www.ncbi.nlm.nih.gov/pubmed/22579774
  8. Gelalis ID, Ristanis S, Nikolopoulos A, Politis A, Rigas C, Xenakis T. Loading rate patterns in scoliotic children during gait: the impact of the schoolbag carriage and the importance of its position. Eur Spine J. 2012 Oct;21(10):1936-41 http://www.ncbi.nlm.nih.gov/pubmed/22544359
  9. Patras K, Ziogas G, Ristanis S, Tsepis E, Tsiaras V, Stergiou N, Georgoulis AD. “Endurance markers are related with local neuromuscular response for the intact but not for the ACL reconstructed leg during high intensity running.” J Sports Med Phys Fitness. 2011 Dec; 51(4):708-14. http://www.ncbi.nlm.nih.gov/pubmed/22212277
  10. Ristanis S, Tsepis E, Giotis D, Zampeli F, Stergiou N, Georgoulis AD. “Knee flexor muscle responses under fatigue after harvesting the hamstrings for anterior cruciate ligament reconstruction.” Clin J Sport Med. 2011 Jul;21(4):288-93. http://www.ncbi.nlm.nih.gov/pubmed/21694593
  11. Ntoulia A, Papadopoulou F, Ristanis S, Argyropoulou M, Georgoulis AD. “Revascularization Process of the Bone-Patellar Tendon-Bone Autograft Evaluated by Contrast-Enhanced Magnetic Resonance Imaging 6 and 12 Months After ACL Reconstruction.” Am J Sports Med. 2011 Jul;39(7):1478-86. http://www.ncbi.nlm.nih.gov/pubmed/21393641
  12. Giotis D, Tsiaras V, Ristanis S, Zampeli F, Mitsionis G, Stergiou N, Georgoulis AD. “Knee braces can decrease tibial rotation during pivoting that occurs in high demanding activities” Knee Surg Sports Traumatol Arthrosc. 2011 Aug;19(8):1347-54 http://www.ncbi.nlm.nih.gov/pubmed/21369837
  13. Georgoulis AD, Ristanis S, Moraiti CO, Paschos N, Zampeli F, Xergia S, Georgiou S, Patras K, Vasiliadis HS, Mitsionis G. “ACL injury and reconstruction: Clinical related in vivo biomechanics.“ Orthop Traumatol Surg Res. 2010; 96:119-128. http://www.ncbi.nlm.nih.gov/pubmed/21036116
  14. Lykoudis EG, Contodimos GV, Ristanis S, Georgoulis AD, Lazarou SA. “One-stage complex Achilles tendon defect reconstruction with an Achilles tendon allograft and a gracilis free flap.” Foot Ankle Int. 2010 Jul;31(7):634-8 http://www.ncbi.nlm.nih.gov/pubmed/20663433
  15. Patras K, Ristanis S., Ziogas G, Tsepis E, Stergiou N., Georgoulis A.D. “ACL reconstructed patients with a BPTB graft present an impaired vastus lateralis neuromuscular response during heavy intensity running” J Sci Med Sport. 2010 Nov;13(6):573-7. http://www.ncbi.nlm.nih.gov/pubmed/20227341
  16. Ristanis S., Tsepis E, Giotis D, Stergiou N., Cerulli G, Georgoulis A.D. “The electromechanical delay of the knee flexor muscles is impaired after harvesting hamstrings for ACL reconstruction” Am J Sports Med. 2009;37(11):2179-86. http://www.ncbi.nlm.nih.gov/pubmed/19684295
  17. Ristanis S., Stergiou N., Siarava E., Ntoulia A., Mitsionis G., Georgoulis A.D. “Effect of femoral tunnel placement for reconstruction of the anterior cruciate ligament on tibial rotation” Journal of Bone & Joint Surgery Am, 2009 Sep;91(9):2151-8. http://www.ncbi.nlm.nih.gov/pubmed/19723992
  18. Moraiti CO, Stergiou N, Ristanis S, Vasiliadis HS, Patras K, Lee C, Georgoulis AD. “The effect of anterior cruciate ligament reconstruction on stride-to-stride variability.” Arthroscopy. 2009 Jul;25(7):742-9. http://www.ncbi.nlm.nih.gov/pubmed/19560638
  19. Patras K, Ziogas G, Ristanis S., Tsepis E, Stergiou N., Georgoulis A.D. “Heavy intensity running impairs neuromuscular response in ACL reconstructed athletes” Knee Surgery, Sports Traumatology & Arthroscopy, 2009 Aug;17(8):977-84 http://www.ncbi.nlm.nih.gov/pubmed/19495726
  20. V. Chouliaras, S. Ristanis, C. Moraiti., V. Tzimas, N. Stergiou, A.D. Georgoulis “ACL reconstruction with a quadrupled hamstrings tendon autograft does not restore tibial rotation to normative levels during landing from a jump and subsequent pivoting.” Journal of Sports Medicine & Physical Fitness, (2009); 49(1), 64-70 http://www.ncbi.nlm.nih.gov/pubmed/19188897
  21. Stergiou N, Ristanis S, Moraiti C, Georgoulis A.D “Tibial rotation in anterior cruciate ligament deficient and reconstructed knees: a theoretical proposition for the development of osteoarthritis.” Sports Medicine (2007); 37(7):601-13. Review http://www.ncbi.nlm.nih.gov/pubmed/17595155
  22. Moraiti C, Stergiou N, Ristanis S, Georgoulis AD. “ACL deficiency affects stride-to-stride variability, as measured using nonlinear methology.” Knee Surgery, Sports Traumatology & Arthroscopy (2007); Dec;15(12):1406-13. http://www.ncbi.nlm.nih.gov/pubmed/17828526
  23. Chouliaras V, Ristanis S, Moraiti C, Stergiou N, Georgoulis AD. “Effectiveness of reconstruction of the ACL with quadrupled hamstrings and bone-patellar-tendon-bone autografts. An in-vivo study comparing tibial internal-external rotation.” American Journal of Sports Medicine (2007); Feb;35(2):189-96 http://www.ncbi.nlm.nih.gov/pubmed/17251174
  24. Georgoulis A.D, Ristanis S, Chouliaras V, Moraiti C, Stergiou N. “Tibial rotation is not restored after ACL reconstruction with a hamstrings graft.” Clinical Orthopaedics & Related Research (2007); Jan; 454: 89-94 http://www.ncbi.nlm.nih.gov/pubmed/17075383
  25. Tsepis E., Vagenas G., Ristanis S., Georgoulis A. “Thigh muscle weakness in ACL-deficient knees persists without structured rehabilitation” Clinical Orthopaedics & Related Research (2006); Sept; 450: 211-218 http://www.ncbi.nlm.nih.gov/pubmed/16721346
  26. Ristanis S, Stergiou N, Patras K, Tsepis E, Moraiti C, Georgoulis AD. “Follow-up evaluation 2 years after ACL reconstruction with bone-patellar tendon-bone graft shows that excessive tibial rotation persists.” Clinical Journal of Sports Medicine; (2006); 16(2): 111-116 http://www.ncbi.nlm.nih.gov/pubmed/16603879
  27. Georgoulis AD, Moraiti C, Ristanis S, Stergiou N. “A novel approach to measure variability in the anterior cruciate ligament deficient knee during walking: the use of the Approximate Entropy in Orthopaedics.” Journal of Clinical Monitoring and Computing (2006); Feb; 20(1): 11-18 http://www.ncbi.nlm.nih.gov/pubmed/16523229
  28. Ristanis S., Stergiou N., Patras K., Vasiliadis HS., Giakas G. and A.D. Georgoulis. “Excessive Tibial Rotation During High Demanding Activities, is Not Restored by ACL Reconstruction” Arthroscopy (2005); Nov; 21(11): 1323-1329 http://www.ncbi.nlm.nih.gov/pubmed/16325082
  29. Georgoulis AD, Ristanis S, Papadonikolakis A, Tsepis E, Moebius U, Moraiti C, Stergiou N. “Electromechanical delay of the knee extensor muscles is not altered after harvesting the patellar tendon as a graft for ACL reconstruction: implications for sports performance.” Knee Surgery, Sports Traumatology & Arthroscopy (2005);13(6): 437-43 http://www.ncbi.nlm.nih.gov/pubmed/15968530
  30. Stergiou N., Moraiti C., Giakas G., Ristanis S. and A.D. Georgoulis. “The effect of the walking speed on the stability of the anterior cruciate ligament deficient knee.” Clinical Biomechanics (2004); 19(9):957-63 http://www.ncbi.nlm.nih.gov/pubmed/15475129
  31. Ristanis S., Giakas G., Papageorgiou CD., Moraiti T., Stergiou N., Georgoulis A.D. “The Effects of Anterior Cruciate Ligament Reconstruction on Tibial Rotation during Pivoting after Descending Stairs” Knee Surgery, Sports Traumatology & Arthroscopy (2003) Volume 11, Number 6; pages 360-365 http://www.ncbi.nlm.nih.gov/pubmed/14530851
  32. Papadonikolakis A.S., Vekris M.D., Korobilias A.V., Kostas J.P., Ristanis S.E., Soucacos P.N. “The use of botulinum type A neurotoxin for the treatment of lower limb spasticity in CP. Improvements in motor skill performance and functional health status evaluated with objective outcome measures” Acta Orthopaedica Scandinavica; (2003); 74(6):749-55 http://www.ncbi.nlm.nih.gov/pubmed/14763710

OTHER PUBLICATIONS – JOURNALS

  1. Ristanis S, Moraiti C, Zampeli F, Giotis D, Xergia S, Georgiou S, Stergiou N, Georgoulis AD. “Tibial rotational kinematics and neuromuscular control after anterior cruciate ligament reconstruction with the bone-patellar tendon-bone autograft vs quadrupled hamstrings.” European Musculoskeletal Review. 2011 Oct;6(4):280-285.
  2. S. Ristanis, H. Vasiliadis, S. Mpoulis. “Conservative treatment of posterolateral dislocation of the elbow with medial epicondyle fracture in children between 6 and 8 years old. A report of three cases and literature review.” Injury Extra (2007); 38,417-421
  3. Η. Tsepis, Κ. Fousekis, S. Ristanis, G. Vagenas, Α. Georgoulis. “Muscle power assymetry between quadriceps and hamstrings in athletes with ACL rupture” Physiotherapy Journal; (2005); 3(5): 5-16
  4. A D Georgoulis, S Ristanis, C Moraiti, A Bernard, A Mitsou, N Stergiou “Three-dimensional kinematics of the tibiofemoral joint in ACL deficient and reconstructed patients, shows increased tibial rotation” Operative techniques in Orthopaedics (2005); 15(1), 49-56
  5. A D Georgoulis, S Ristanis, V Chouliaras, C Moraiti, N Stergiou “ACL Reconstruction With a Quadrupled Hamstring Autograft Does Not Restore Tibial Rotation” Operative techniques in Orthopaedics (2005); 20(3), 328-33
  6. Papadonikolakis, MD Vekris, AV Korompilias, J.P Kostas, V. Kontogeorgakos, S. Ristanis, PN Soucacos. “Prospective evaluation of 110 patients treated with botulinum toxin type A for limb spasticity.” Journal of the Orthopaedic and Traumatology Association of Macedonia and Thrace; (2003); 16(3): 29-45

 

CITATIONS

 https://scholar.google.gr/citations?scilu=5413783386275004766:0&scisig=AMstHGQAAAAAV-wkBTJ2ZMAdMHk8-hKbaQl-5ALcQLYg&gmla=AJsN-F7zbgAj–qsReQuguPwlLZxkN7ak4mQPxI48pzJsl3i8IxqKzU6n0SUj4NacONSR_Wqkqc4mo0iCSocdFre7Khebs_wosSvF1yCHY5jn_z8jQKYFNo&sciund=6434263638477666901&user=Bo3M7iYAAAAJ

My research work has received more than 1000 citations (1453 in Google Scholar and 1020 in Scopus)

https://www.scopus.com/authid/detail.uri?authorId=6508300811

Sports Traumatology & Arthroscopy Journa