1) 5th Sicot, Marrakesh: The significance of the radiological outcome of early follow-up after osteochondral autografting in traumatic and degenerative defects of femoral condyles and talus

2) 5th Sicot, Marrakesh: Results of osteochondral autologus transplantation in the knee joint- a follow up of one to four years

3) Dt. Wirbelsäulenkongress (München): Die Evaluaion der Navigation des künstlichen Bandscheibenersatzes- Eine Kadaverstudie

4) Britisch Orthopaedic association: The MRI Scan in the early follow-up after osteochondral autografting in traumatic and degenerative defects of femoral condyles and talus

5) European joint and Bone infection society (Corfu): Individual local antibiotic therapy for treatment of unspecific spondylodiscitis using Perossal

1) Ventral Vertebroplasty of Adjacent segments after Corpectomy and vertebral body replacement to prevent cage subsidence. Griechischer Orthopädenkongress

2) Influence of the lumbar disc replacement on the height of the intervertebral space and on facet joint articulation in sagittal plane. A cadaver study. Griechischer Orthopädenkongress

3) The first results of a newly developed cement augmented pedicle screw. A retrospective analysis. Griechischer Orthopädenkongress

4) Clinical and radiological Evaluation of osteochondral autografting in traumatic and degenerative defects of knee and ankle. A retrospective study of 1-4 years. Griechischer Orthopädenkongress

5) Deutscher Wirbelsäulenkongress: Der Einfluß des Bandscheibenersatzes auf die Facettengelenke. Eine Kadaverstudie

1) Correlation of the volume of injected cement using cement augmented pedicle screws with their poullout strength. A cadaver study. Griechischer Orthopädenkongress

2) The role of insertion length of pedicle screws on their poullout strength. A cadaver study. Griechischer Orthopädenkongress

3) Deutscher Wirbelsäulenkongress: Zementverteilung bei Vertebroplastieschrauben unterschiedlichen Designs.

1) Radiofrequenz-Kyphoplastie bei osteoporotischen Wirbelkörperfrakturen. Griechischer Orthopädenkongress

2) Strontium ranelate enhances callus strength more than PTH 1-34 in an osteoporotic rat model of fracture healing. Griechischer Orthopädenkongress

3) Orthopaedic research society und Deutscher Orthopädenkongress: Zementverteilung bei Vertebroplastieschrauben unterschiedlichen Designs.

4) Deutscher Wirbelsäulenkongress-Poster: Biomechanisches Verhalten einer neuen Pedikelschraube mit doppeltem Außendurchmesser. Eine Kadaverstudie.

5) Wesarg, S.; Erdt, M.; Kafchitsas, K.; Khan, M.F.:CAD of Osteoporosis in Vertebrae Using Dual-energy CT: 23rd IEEE International Symposium on Computer-Based Medical Systems. 2010.

6) Wesarg, S.; Ghassemi Hosseini, A.S.; Erdt, M.; Kafchitsas, K.; Khan, M.F.:Segmental Assessment and Visualization of Trabecular Bone Mineral Density in Vertebrae EG VCBM Workshop. 2010.

1) Whiplash Injury in sport activities. 14th International Sports medicine Congress, 1-3 April, Thessaloniki, Greece

2) Are the Ottawa rules helpful to predict ankle and foot fractures in sport activities?. 14th International Sports medicine Congress, 1-3 April, Thessaloniki, Greece

3) Low back pain and life style factors.

4) Positioning of pedicle screws according to local bone mass density and effect on their poulout strength. A cadaver study. Griechischer Orthopädenkongress

5) Sagittal balance of the spine and our experience according to the literature. Griechischer Orthopädenkongress

6) Kyphoplasty improved Quality of life, reduced pain and disability after kyphoplasties for metastatic disease. Griechischer Orthopädenkongress

7) Sagittale Rekonstruktion nach monosegmentaler Spondylodese und klinische Ergebnisse. Kongress der Deutschen Wirbelsäulengesellschaft, 8-10. Dezember 2011

1) Direct Vertebral Rotation and its Impact on Selection of Fusion Levels Spineweek Amsterdam, 29 Mai, Amsterdam, The Netherlands

2) Die degenerative und entzündliche Kyphose und der Einfluss der Osteoporose, Deformitäten im Erwachsenenalter, 22-23 Juni, Universitätsklinikum Heidelberg- Stiftung Universitätsklinik

3) Radiological Assessment and Correlation of radiological Parameter with Low Back Pain, 68th Greek Conference for Orthopedics and Traumatology 3-6 October, Athens, Greece

1) Whiplash Injuries in Sports activities. Clinical Outcome and Biomechanics. European College of Sports and ExercisePhysicians(ECOSEP)Conference.2527April,Frankfurt/Main,Germany

2) Clinical Image-Based Procedures. Translational Research in Medical Imaging. Second International Workshop, CLIP 2013, Held in Conjunction with MICCAI 2013, Nagoya, Japan, September 22, 2013

3) Dual Energy CT-based Assessment of the Trabecular Bone in Vertebrae. Frauenhofer IGD and the Interactive Graphics Systems Group of TU Darmstadt, 2013, December 5. BEST PAPER AWARD

4) Comparison of intraarticularlumbar facet joint steroid injections and lumbar facet joint radiofrequency denervation in the treatmant of low back pain 69th Greek Conference for Orthopedics and Traumatology, 2-5 October, Athens Greece

5) Are the “OTTAWA rules” and the “HADS” Instruments helpful to predict ankle and foot fractures 69th Greek Conference for Orthopedics and Traumatology, 2-5 October, Athens Greece

1) First Clinical Experience with BMD Assessment in Vertebrae Using DualEnergy CT. Clinical Image-Based Procedures. Translational Research in Medical Imaging Lecture Notes in Computer Science 2014, pp 151-159

2) Kyphoplasty And Spondyloplasty Improve Dramatically The Quality Of Life In Metastatic Spine Disease: 4-Years Follow-Up In Two Different Orthopaedic Centres. 15th EFORT Congress 2014 London, UK, 4-6 June

3) Monitoring Anaesthesia Control During Kyphoplasties In Two Orthopaedic Centers.  15th EFORT Congress 2014 London, UK, 4-6 June

4) Der intrapedikuläre Lauf der Pedikelschraube beeinflußt das Auszugsverhalten der Schrauben, DWG Kongress, Leipzig, Dezember 2014

5) Correlation of intervertebral disc degeneration and facet joint Osteoarthritis. Deutscher Wirbelsäulenkongress 2014

6) Correlation of the infravertebral volume of injected cement using cement augmented pedicle screws with their pullout strength. A cadaver study Griechischer Wirbelsäulenkongress, 2014 Thessaloniki, Griechenland

7) Spine Stabilisation in the elderly K Kafchitsas/F. Khan, gemeinsamer Vortrag OTEMATH 2015 Nordgriechischer Orthopädenkongress 2015

8) Kyphoplasty and Spondyloplasty improve quality of life in metastatic spine disease Society for minimally invasive Spine Surgery (SMISS) Global Forum 2014, Miami

9) Es gibt keine bildmorphologische korrelation zwischen bandscheibendegeneration und facettengelenksarthrose Deutscher Wirbelsäulenkongress, DWG 2015

10) Die Körperliche und Geistige Gesundheit bei der konservativen Behandlung der idiopathischen Skoliose Deutscher Wirbelsäulenkongress 2015, Frankfurt a.M.

Auch Vorsitz der Session 4 (Grundlagenforschung)

11) Die Vit. D Insuffizienz bei elektiven Wirbelsäulenoperationen. Eine Multicenter Studie Kongress der Griechischen Gesellschaft für Orthopädie und Traumatologie 2016, Athen

12) The Prevalence of Vitamin D deficiency in elective spine surgery. A study in three orthopaedic centers. Global Spine Congress 13 - 16.04.2016, Dubai

13) The physical and mental health in the conservative treatment of the idiopathic scoliosis Global Spine Congress 13 - 16.04.2016, Dubai

14) Die Interposition von allogenem Trikortikalem Beckenkammspan bei dorsoventraler Spondylodese Kongress der Griechischen Gesellschaft für Orthopädie und Traumatologie 2017, Athen

15) Die Lebensqualität nach der konservativen Therapie bei Patienten mit degenerativer Bandscheibenerkrankung und Spondylarthrose Kongress der Griechischen Gesellschaft für Orthopädie und Traumatologie 2017, Athen

16) Die Infiltrationstherapie mit Kortison bei degenerativen Erkrankungen der Lendenwirbelsäule. Eine Multicenter Studie Kongress der Griechischen Gesellschaft für Orthopädie und Traumatologie 2019, Athen

17) Trap 5b as an early predictor for implant loosening in a rat model Osteologie 2019, Berlin

18) Das ISG Syndrom nach lumbaler Fusion.Krankheitsbild oder Kollateralerscheinung? Therapiemöglichkeiten „State of the Art“ Verein der Süddeutschen Orthopäden und Unfallchirurgen 2019, Baden Baden

Auch Vorsitz der Session „Operative Therapie der degenerativen Wirbelsäule“

19) Eagle’s Syndrome In Emergencies 30.05.2019, 19th EFORT Congress in Barcelona, Spain

20) Septic or Aseptic the Osteitis from SAPHO Syndrome? 04 - 07.04.2019, World congress on osteoporosis, osteoarthritis and musculoskeletal diseases Paris

21) Predicting persistent pain two years after Whiplash injuries 04 - 07.04.2019, World congress on osteoporosis, osteoarthritis and musculoskeletal diseases Paris

22) Cement augmentation of pedicle screws: To cement or not to cement?, Dezember 2019, Kairo

23) Osteoporosis and Implant Ancorage in Spine, Dezember 2019, Kairo

1) Kafchitsas K, Habermann B, Proschek D, Kurth A, Eberhardt C. Functional results after giant cell tumor operation near knee joint and the cement radiolucent zone as indicator of recurrence. Anticancer Res. 2010 Sep;30(9):3795-9. PubMed PMID: 20944172.

2) Proschek D, Kafchitsas K, Rauschmann M, Kurth A, Vogl T, Geiger F. Reduction of radiation dose during radiofrequency denervation of the lumbar facet joints using the new targeting system SabreSource: a prospective study in 20 patients. Arch Orthop Trauma Surg. 2010 Sep;130(9):1103-10. Epub 2009 Oct 24. PubMed PMID: 19855988.

3) Maataoui A, Gurung J, Ackermann H, Abolmaali N, Kafchitsas K, Vogl TJ, Khan MF. Facilitating cartilage volume measurement using MRI. Eur J Radiol. 2010 Aug;75(2):241-4. Epub 2009 May 29. PubMed PMID: 19481398.

4) Geiger F, Kafchitsas K, Rauschmann M. [Sintering prophylaxis of a vertebral body replacement: anterior cement augmentation of vertebral end plates]. Orthopade. 2010 Jul;39(7):699-703. German. PubMed PMID: 20607473.

5) Kafchitsas K, Geiger F, Rauschmann M, Schmidt S. [Cement distribution in vertebroplasty pedicle screws with different designs]. Orthopade. 2010 Jul;39(7):679-86. German. PubMed PMID: 20549485.

6) Kafchitsas K, Kokkinakis M, Habermann B, Rauschmann M. Effect of lumbar disc replacement on the height of the disc space and the geometry of the facet joints: a cadaver study. J Bone Joint Surg Br. 2010 Apr;92(4):595-601. PubMed PMID: 20357341.

7) Habermann B, Kafchitsas K, Olender G, Augat P, Kurth A. Strontium ranelate enhances callus strength more than PTH 1-34 in an osteoporotic rat model of fracture healing. Calcif Tissue Int. 2010 Jan;86(1):82-9. Epub 2009 Dec 4. PubMed PMID: 19960189.

8) Rauschmann MA, Thalgott J, Fogarty M, Nichlos M, Kleinszig G, Knap M, Kafchitsas K. Insertion of the artificial disc replacement: a cadaver study comparing the conventional surgical technique and the use of a navigation system. Spine (Phila Pa 1976). 2009 May 1;34(10):1110-5. PubMed PMID: 19404182.

9) Proschek D, Kafchitsas K, Rauschmann MA, Kurth AA, Vogl TJ, Geiger F. Reduction of radiation dose during facet joint injection using the new image guidance system SabreSource: a prospective study in 60 patients. Eur Spine J. 2009 Apr;18(4):546-53. Epub 2008 Dec 11. PubMed PMID: 19082641; PubMed Central PMCID: PMC2899461.

10) Kafchitsas K, Rauschmann M. Navigation of artificial disc replacement: evaluation in a cadaver study. Comput Aided Surg. 2009;14(1-3):28-36. PubMed PMID: 20121585

11) Kokkinakis M, Kafchitsas K, Rajeev A, Mortier J. Is MRI useful in the early follow-up after autologous osteochondral transplantation? Acta Orthop Belg. 2008 Oct;74(5):636-42. PubMed PMID: 19058698.

12) Proschek D, Mack M, Kafchitsas K, Fusshoeller G, Hochmuth K. [Contrast-enhanced diagnostics in orthopaedics]. Orthopade. 2006 Jun;35(6):616-25. Review. German. PubMed PMID: 16586057.

13) Geiger F, Kafchitsas K, Rauschmann M. Anterior vertebroplasty of adjacent levels after vertebral body replacement. Eur Spine J. 2011 Mar 30

14) Proschek D, Tonak M, Kafchitsas K, Zangos S, Mack MG, Theisen A, Kurth AA. Direct Implantation of VX-2 Carcinoma: A New Rabbit Bone Model Using a Three-Dimensional Matrix as a Carrier for the Tumor Cells. Eur Surg Res. 2011;47(3):154-8. Epub 2011 Sep 27.

15) Proschek D, Kafchitsas K, Kurth AA, Mattyasovszky SG, Betz S, Ludwig HR, Mack MG. The Quality of Applied Bone Cement Depends on the Chemical Composition of the Application System. Eur Surg Res. 2011 Oct 4;47(4):189-195.

16) Matzaroglou C, Georgiou CS, Assimakopoulos K, Giannakenas C, Karageorgos A, Saridis A, Kafchitsas K, Wilke HJ. Kümmell's disease: pathophysiology, diagnosis, treatment and the role of nuclear medicine. Rationale according to our experience.
Hell J Nucl Med. 2011 Sep;14(3):291-9.

17) Wesarg S, Kirschner M, Becker M, Erdt M, Kafchitsas K, Khan MF Dual-energy CT based assessment of the trabecular bone in vertebrae Methods of Information in Medicine

18) Matzaroglou C, Georgiou CS, Wilke HJ, Assimakopoulos K, Karageorgos A, Konstantinou D, Velissaris D, Panagiotopoulos E, Kafchitsas K Kümmell's disease: Is ischemic necrosis or vertebral "microcracking" the first step in the sequence? Med Hypotheses Jan 2013

19) Mattyasovszky SG, Kurth AA, Drees P, Gemidji J, Thomczyk S, Kafchitsas K. Minimally invasive cement augmentation of osteoporotic vertebral compression fractures with the new radiofrequency kyphoplasty. Oper Orthop Traumatol. 2013

20) Kafchitsas K, Habermann B, Khan FM, Matzaroglou C. Operations in spinal surgery are not always needed. Do we operate more than we should? Hell J Nucl Med. 2014 Jan-Apr;17 Suppl 1:17-9.

21) Wichmann JL, Booz C, Wesarg S, Kafchitsas K, Bauer RW, Kerl JM, Lehnert T, Vogl TJ, Khan MF. Dual-Energy CT-based Phantomless in Vivo Three-dimensional Bone Mineral Density Assessment of the Lumbar Spine. Radiology. 2014 Jun;271(3):778-84.

22) . Maataoui A, Vogl TJ, Middendorp M, Kafchitsas K, Khan MF. Association between facet joint osteoarthritis and the Oswestry Disability Index. World J Radiol. 2014 Nov 28;6(11):881-5.

23) Matzaroglou C, Georgiou CS, Panagopoulos A, Assimakopoulos K, Wilke HJ, Habermann B, Panos G, Kafchitsas K. Kümmell's Disease: Clarifying the Mechanisms and Patients' Inclusion Criteria. Open Orthop J. 2014 Sep 15;8:288-97.

24) Maier GS, Eberhardt C, Strauch M, Kafchitsas K, Kurth AA. Is tartrate-resistant acid phosphatase 5b a potent bio-marker for late stage aseptic implant loosening? Int Orthop. 2014 Dec;38(12):2597-600.

25) Wichmann JL, Booz C, Wesarg S, Bauer RW, Kerl JM, Fischer S, Lehnert T, Vogl TJ, Khan MF, Kafchitsas K. Quantitative dual-energy CT for phantomless evaluation of cancellous bone mineral density of the vertebral pedicle: correlation with pedicle screw pull-out strength. Eur Radiol. 2014 Dec 7

26) Christodoulou E, Chinthakunta S, Reddy D, Khalil S, Apostolou T, Drees P, Kafchitsas K. Axial pullout strength comparison of different screw designs: fenestrated screw, dual outer diameter screw and standard pedicle screw. Scoliosis. 2015 May 1;10:15.

1) Konstantinos  Kafchitsas Aktuelle perspektiven in der Osteoporosetherapie „Tartratresistente saure Phosphatase 5b (TRAP 5b) als Marker der Knochenresorption “Das gerade Kind” Uni-Med 2008 Uni-Med Verlag AG, Bremen

2) B. Habermann; K. Kafchitsas; C. Eberhardt; A. A. Kurth, Osteologie 2009; 18 (1-4) Maligne Tumoren des Bewegungsapparates im Kindes- und Jugendalter Malignant tumours of the musculoskeletal system in childhood and adolescence

3) Konstantinos  Kafchitsas, Thomas  Vetter, Andreas  Kurth „Das gerade Kind” - kindliche Wirbelsäule und Skoliose Pädiatrie up2date 2010; 5(2): 191-212© Georg Thieme Verlag KG Stuttgart · New York

4) Konstantinos  Kafchitsas, Thomas  Vetter, Andreas  Kurth „Wirbelsäulenerkrankungen im Kindesalter” – Spinal diseases in children Monatsschrift Kinderheilkunde 2011; 159(1): 34-43© Springer Verlag

5) Wesarg, S.; Erdt, M.; Kafchitsas, K.; Khan, M.F.: CAD of Osteoporosis in Vertebrae Using Dual-energy CT In: Dillon, Tharam et al. ; 23rd IEEE Symposium on Computer-Based Medical Systems. 2010 : CBMS 2010. Los Alamitos, Calif. : IEEE Computer Society, 2010, pp. 358-363.

6) Wesarg, S.; Erdt, M.; Kafchitsas, K.; Khan, M.F.: Quantifizierung und Visualisierung der Struktur des trabekulären Knochens in Wirbelkörpern In: Bildverarbeitung für die Medizin (BVM) 2011.

7) Wesarg, S.; Erdt, M.; Kafchitsas, K.; Khan, M.F.: ”Direct visualization of regions with lowered bone mineral density in dual-energy CT images of vertebrae” In: SPIE Medical Imaging 2011. Proceedings Issue.