Vorträge und Abstracts

  • Stoffel K, Fellmann J, Bereiter H. Relevant differences in posttraumatic and degenerative shoulder hemiarthroplasty (a mid-term follow-up). Swiss Union Congress; Lausanne, June 1998.

  • Stoffel K, Engler H, Riesen W, Gächter A, Kuster M.S. Bone remodelling markers and fracture healing: Preliminary data from a prospective study evaluating different fracture sites. Western Pacific Orthopeadic Association (WPAO) May 2001, Adelaide.

  • Stoffel K, Kuster M, Stachowiak G, Gächter A. A biomechanical investigation of the modified Arthrex Osteotomy Plate (Puddu Plate) and TomoFix Plate for high tibial medial opening wedge osteotomy. Swiss Union Congress, Lausanne, July 2002.

  • Notter H.P, Stoffel K, Sommer Ch, Sommer Ch, Furrer M.„Sentinel“-Lymphnode dissection in melanoma. First experiences. Swiss Surgery Association (SSA) Davos, December 1997.

  • Kuster M, Stoffel K, Engler H, Riesen W, Gächter A. Changes in bone markers in serum and urine in the course of fracture healing. Swiss Orthopaedic Association Congress, Lugano, June 2001.

  • Engler H, Stoffel K, Kuster M, Riesen W. Weisen Knochenmarker frühzeitig auf einen verzögerten Heilungsverlauf bei Osteosynthese nach Knochenfrakturen hin? Jahrestagung Schweizerische Jahrestagung klinische Chemie, ETH Zürich, Octobre 2002.

  • Bürgi M, Stoffel K, Bereiter H, Jacob. Radiological findings and clinical results of 102 Thrust-Plate hip prostheses - a follow-up of 2 to 8 years. SICOT/SIROT San Diago Convention Center, San Diego, CA, USA, August 2002.

  • Gago M, Frenk A, Stoffel K, Ulrich D. Locking Compression Plate: Screw configuration and biomechanical situation. AO Curse, Davos, December, 2002.

  • Ozturk H, Jones C, Stoffel K, Stachowiak G. The Effect of Surface Active Phospholipids on the Lubrication of Osteoarthritic Sheep Knee Joints: Friction. 6th International Tribology Conference – Austrib 02, Perth, WA, Australia, December, 2002.

  • Jones C, Ozturk H, Stoffel K, Stachowiak G. The Effect of Surface Active Phospholipids on the Lubrication of Osteoarthritic Sheep Knee Joints: Wear. 6th International Tribology Conference – Austrib 02, Perth, WA, Australia, December, 2002.

  • Stoffel K, Ulrich D, Stachowiak G, Gächter A, Kuster M. How can stability in internal fixators be controlled? A mechanical and Finite Element Analysis. Swiss Orthopaedic Association Congress, Bale, October 2003.

  • Stoffel K, Gächter A, Stachowiak G. Surfactant: der Durchbruch in der Behandlung der Gelenksarthrose? Swiss Orthopaedic Association Congress, Bale, October 2003.

  • Stoffel K, Ellenberger M, Gächter A, Nagel W. Eine seltene Ursache für Wadenkrämpfe beim Jungen: Klinik, Diagnostik, Therapie und Literaturübersicht des poplitealen Entrapmentsyndromes. Swiss Orthopaedic Association Congress, Bale, October 2003.

  • Stoffel K, Forster T, Stachowiak G, Gächter A, Kuster MS. Oblique screws at the plate end increases the fixation strength. Swiss Orthopaedic Association Congress, Bale, October 2003.

  • Boder P. Stoffel K, Bereiter H, Gächter A. Die sekundäre mediale Patellaluxation nach medialisierenden Operationstechniken an der Tuberositas tibiae. Swiss Orthopaedic Association Congress, Bale, October 2003.

  • Harder L, Stoffel K. The pull out strength of locked internal fixators and conventional plates. Poster; Swiss Orthopaedic Association Congress, Bale, October 2003.

  • Kessler M, Stoffel K, Gächter A.  Die SLAP-Läsions als Ursache eines glenolabralen Ganglions. Swiss Orthopaedic Association Congress, Bale, October 2003 and Jahreskongress der Deutschen Vereinigung für Schulter- und Ellbogenchirurgie, Köln, März 2004.

  • Wengler E, Stoffel K, Gächter A, Kuster MS. A new technique of subtrochanteric shortening osteotomy in total hip arthroplasty performed with the trust plate prosthesis for high riding congenital dislocation of the hip. Swiss Orthopaedic Association Congress, Bale, October 2003.

  • Kuster M, Stoffel K, Grob K, Forster Th. Clinical Experience with NCB – A new locking plate. Continuing Medical Education, Fremantle Orthopaedic Unit, The University of Western Australia, Fremantle, June, 2004.

  • Stoffel K, Jones C, Ozturk H, Stachowiak G, Kuster M. Surface active pospholipids reduce friction and wear in osteoarthritic sheep joints. Annual Scientific Meeting of the Australian Orthopaedic Association, Perth, September, 2004.

  • Stoffel K, Lorenz K, Grob K, Forster Th, Kuster M. The biomechanical advantages of internal fixators in plate osteosynthesis. Annual Scientific Meeting of the Australian Orthopaedic Association, Perth, September, 2004.

  • Kuster M, W. Bryceson, Stoffel K. The Non Contact Bridging Plate: A new advance in the osteosynthesis of osteoporotic fractures. Preliminary findings. Annual Scientific Meeting of the Australian Orthopaedic Association, Perth, September, 2004.

  • Stoffel K, Kuster M. Orthopaedic X-Ray Session – Common Fractures. 38th  Fremantle Postgraduate Medical Meeting. Fremantle, October, 2004.

  • Booth G, Stoffel K, Kuster M. Internal Fixation of experimental intraartikular calcaneus fractures: a biomechanical comparison of conventional and locking plates in cadaveric specimens. Annual Australian Orthopaedic Foot and Ankle Society Conference, Darwin, August, 2005.

  • Lorenz, K, Stoffel K, Kuster M. Biomechanical evaluation of current devices for the refixation of the greater trochanter. Annual Scientific Meeting AOA ASM, Perth, October, 2005.

  • Khorshid O, Stoffel K, Kuster M. The effect of high tibial osteotomy on patellofemoral pressure. A biomechanical study in human cadaveric knees. Annual Scientific Meeting AOA ASM, Perth, October, 2005.

  • Stoffel K, Kuster M. Current biomechanical concepts in plate osteosynthesis.  Invited Lecture at the University of Adelaide at the Royal Adelaide Hospital, Adelaide, South Australia, September, 2005.

  • Lim T, Billik B, Stoffel K. Sliding Hip Screw Fixation of fractures of the proximal femur: An analysis of the predictive factors of failure. Annual Scientific State Meeting AOA, Perth, March, 2006.

  • Cunnen S, Stoffel K, Kuster M. Biomechanical comparison of double-plate fixation in 90 º vs. 180 º for 2 different periarticular locking systems for distal humeral fractures in human cadavers. Annual Scientific State Meeting AOA, Perth, March, 2006.

  • Murray B, Stoffel K, Jarrett P, Kuster M. Volar vs dorsal locking plates in dorsally comminuted distal radius fractures: a biomechanical study. Annual Scientific State Meeting AOA, Perth, March, 2006.

  • Kinzel V, Jarrett P, Stoffel K. A Biomechanical Comparison of Scaphoid Fixation Grafting with Iliac Bone or Distal Radial Bone Grafts. Annual Scientific State Meeting AOA, Perth, August, 2006.

  • Jarrett P, Kinzel V, Stoffel K. Scaphoid Morphology – An Analysis of 28 Cadaver Scaphoids. Federation of European Societies for Surgery of the Hand ASM, Glasgow, June 2006.

  • Stoffel K. Trauma Update Meeting - New Design of Locking Plate – Trauma MIS Approaches.  Invited Lecture from the Taiwan Orthopaedic Association, March 2006.

  • Stoffel K, Lim T, Billik B. An analysis of the predictive factors of failure of the Sliding Hip Screw Fixation of fractures of the proximal femur. MOA-APOA Trauma Section combined Meeting, Kuala Lumpur, June, 2006.

  • Booth G, Stoffel K, Kuster M. A comparison of conventional versus locking plates in intraarticular calcaneus fractures: a biomechanical study in human cadavers. Annual Scientific State Meeting AOA, Perth, August, 2006.

  • Leys T, Stoffel K. Cement augmentation of hip screws. Annual Scientific State Meeting AOA, Perth, August, 2006.

  • Li-on L, Alan Kop, Stoffel K. Neck fracture of 4 Cobalt Alloy Hip Arthroplasty Femoral Components. Annual Scientific State Meeting AOA, Perth, August, 2006.

  • Jarrett P, Kinzel V, Stoffel K. Scaphoid bone density assessment – A Comparison of two measurement techniques. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Lim T, Stoffel K. Sliding Hip Screw Fixation of fractures of the proximal femur: An analysis of the predictive factors of failure. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Cunnen S, Stoffel K, Kuster M. Biomechanical comparison of double-plate fixation in 90 º vs. 180 º for 2 different periarticular locking systems for distal humeral fractures in human cadavers. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Murray B, Stoffel K, Jarrett P, Kuster M. Volar vs dorsal locking plates in dorsally comminuted distal radius fractures: a biomechanical study. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Kinzel V, Jarrett P, Stoffel K. A Biomechanical Comparison of Scaphoid Fixation Grafting with Iliac Bone or Distal Radial Bone Grafts. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Ioppolo J, Stoffel K, Roehrl S, Nivbrand J. Tibiofibular kinematics following ankle fracture fixation using RSA and single plane fluroscopy. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Stoffel K, Kuster M. Biomechanical considerations in plate osteosynthesis: the effect of plate to bone compession with and without angular stability of the screws. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Li-on L, Stoffel K, Mohindra R, Dayle R. Fatigue failure of a Cobalt-Alloy femoral taper. A report of four cases. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Booth G, Stoffel K, Kuster M. Internal Fixation of experimental intraarticular calcaneus fractures: a biomechanical comparison of conventional and locking plates in cadaveric specimens. Annual Combined National Scientific Meeting AOA, Canberra, October, 2006.

  • Jarrett P, Kinzel V, Stoffel K. A Biomechanical Comparison in Human Cadavers between Scaphoid Fracture Fixation and Grafting with Iliacal Bone versus Distal Radial Bone. 10t Triennial Congress of the International Federation of Societies for Surgery of the Hand, Sydney, March 2007.

  • Stoffel K. First clinical results with the PFN A. Synthes Annual Sales Conference, Launceston, Tasmania. January 2007.

  • Stoffel K. Key-point to understand the Locking Plates. Synthes Annual Sales Conference, Launceston, Tasmania. January 2007.

  • Stoffel K. Concept of Mechano-Biology in Fracture Management. Invited Lecture at Silver Jubilee Annual Conference of Gujarat Orthopaedic Association, Goacon, India. February, 2007.

  • Stoffel K. How to use Locking Plates. Invited Lecture at the Striker Annual Trauma Meeting, Perth, March, 2007

  • Lim T, Stoffel K, Bilik B, Yates P. Sliding Hip Screw Fixation of Extracapsular Fractures of the Proximal Fracture: An Analysis of the Predictive Factors of Failure. 37th Annual General Meeting of the Malaysian Orthopaedic Association & 14th International Musculosceletal Laser Society (IMAS) Congress, Awana Porto Malai, Langkawi, Kedah, Malaysia, May 2007.

  • Stoffel K, Yates P. Periprosthetic Fracture fixation around TKA using a polyaxial locking plate. 5th Annual Meeting Asia pacific Orthopaedic Association (APOS), Bangkok, June 2007.

  • Yates P, Stoffel K. Arthroplasty for subcapital neck of femur fractures.  5th Annual Meeting Asia pacific Orthopaedic Association (APOS), Bangkok, June 2007.

  • Friedrich L, Page R, Yates P, Stoffel K. The use of a Visual Hand Chart to aid in the description of acute hand injuries. Annual Scientific Service Registrar Meeting, CTEC, Perth, April, 2007

  • Khoo P, Stoffel K, Yates P. Characteristics of periprosthetic fractures around polished collarless cemented stems with triple vs. double tapers. Annual National Scientific Meeting AOA, Gold Coast, October, 2007.

  • Stoffel K, Flivik G, Yates P, Nicholls R. Intraosseous blood flow of the subluxed or everted patella during total knee arthroplasty. Annual National Scientific Meeting AOA, Gold Coast, October, 2007.

  • Aldrige O, Marshall A, Taylor P, Stoffel K. An audit of a clinical pathway guiding management of patients with proximal femur fractures. Annual National Scientific Meeting AOA, Gold Coast, October, 2007.

  • Wysocki D, Yates P, Stoffel K. Reliability of the intra-operative assessment of injuries of the ankle syndesmosis: A cadaveric study.  Annual National Scientific Meeting AOA, Gold Coast, October, 2007.

  • Stoffel K, Wysocki D, Yates P. Reliability of the intra-operative assessment of injuries of the ankle syndesmosis: A cadaveric study. Combined Australian & New Zealand Orthopaedic Foot & Ankle Society Conference, Cairns, August, 2007.

  • Angus K, Stoffel K, Yates P. Early Clinical and Radiographic Results of the Proximal Femoral Nail A (PFNA). Annual State Scientific Meeting AOA, Bunker Bay, August, 2007.

  • Baddour E, Stoffel K, Day R. How can we reduce implant stress in bridging plate osteosynthesis? Annual State Scientific Meeting AOA, Bunker Bay, August, 2007.

  • Khoo P, Stoffel K, Yates P. Characteristics of Periprosthetic Fractures Around Polished Collarless Cemented Stems with Triple Versus Double Tapers. Annual State Scientific Meeting AOA, Bunker Bay, August, 2007.

  • Lawson-Smith M, Schweiger K, Gueorguiey B, Stoffel K. Investigation of a new locking bolt in the expert tibial nail. Annual State Scientific Meeting AOA, Bunker Bay, August, 2007.

  • Nicholls R, Winata A, Dempsey A, Lloyd D, Kirk B, Stoffel K.  Does the use of ankle tape affect loading in the lower limb? Annual Meeting of the Australian Association for Exercise and Sport Science, Melbourne 27-30 March, 2008

  • Stoffel K, Leys T, Damen N, Rochelle N, Kuster M. A new technique for cement augmentation of the sliding hip screw in proximal femur fractures. 9th EFFORT Congress, Nice 28-30 May, France, 2008

  • Stoffel K, Shan Lim T, Billik B, Yates, P. Dynamic hip screw (DHS) Fixation of extracapsular proximal femur fractures - predictive factors of failure in a series of 567 cases. 9th EFFORT Congress, Nice 28-30 May, France, 2008

  • Stoffel K, Lorenz KU, Kuster M. Biomechanical considerations in plate osteosynthesis: the effect of plate to bone compression with and / or without angular stability in shaft and distal intraarticular femur fractures. 9th EFFORT Congress, Nice 28-30 May, France, 2008

  • Taylor P, Stoffel K, Rasmussen J. A computational Model of Clavicle Fracture Fixation. 16th Annual Symposium of Computational Methods in Orthopaedic Biomechanics, San Francisco, March, 2008

  • Stoffel Karl. Biomechanics of Locking Plates. AO Meeting: Between Nostalgia and Future. 50 Years AO, Biel, Switzerland, November, 2008

  • Stoffel K. The diabetic foot: conservative and operative treatment options from an orthopaedic point of view. Symposium, Chur, 3 Dec, 2008

  • Eriksson B et al., Contributing investigator. Rivaroxaban vs Enoxaparin for Thromboprophylaxis after hip arthroplasty. Eriksson B, et al NEJM 2008; 358 (26): 2765-76.

  • Schwieger K, Gueorguiev B, Lawson-Smith M, Windolf M, Stoffel K. Biomechanisches Potential winkelstabiler Marknagelverriegelung bei distalen Tibiafrakturen. 72. Deutscher Kongress für Orthopädie und Unfallchirurgie; 22-25 Okt, Berlin, 2008.

  • Wysocki D,  Stoffel K, Baddour E, Yates P. Reliability of the Intra-operative Assessment of Injuries of the Ankle Syndesmosis - A Cadaver Study. American Academy of Orthopaedic Surgeons (AAOS) 2009 Annual Meeting. Las Vegas, Nevada, February, 2009.

  • Stoffel K, Flivik G, Nicholls G, Yates P. Intraosseous Blood Flow of the Everted or Laterally - Retracted Patella During Total Knee Arthroplasty. American Academy of Orthopaedic Surgeons (AAOS) 2009 Annual Meeting. Las Vegas, Nevada, February, 2009.

  • Stoffel K. Current concepts of pilon fracture treatment. Invited lecture. Swiss Orthopaedic Society. Annual Meeting, Geneva, June, 2009

  • Stoffel K, Lim TS, Billik B, Yates P. Dynamic hip screw (DHS) fixation of extracapsular proximal femur fractures – predictive factors of failure in a series of 567 cases. Swiss Orthopaedic Society. Annual Meeting, Geneva, June, 2009

  • Stoffel K, Lorenz KU, Kuster MS. Biomechanical considerations in plate osteosynthesis: the effect of plate-to-bone compression with and without angular screw stability. Swiss Orthopaedic Society. Annual Meeting, Geneva, June, 2009.

  • Kampshof J, Stoffel K.  Periprosthetic fractures – which screw can be used in cement. Australian Orthopaedic Association (AOA) 2009. Annual Meeting, Cairns, Queensland, October, 2009.

  • Stoffel K. Alpinism and Osteoarthritis. Invited Lecture. Society of Swiss Traumatology and Sports medicine (GOTS). Annual Meeting, Engelberg, July, 2009

  • Stoffel K. What should I know about biomechanics. Invited Lecture. AO Course Davos,  Dec 2009

  • Stoffel K. A new classification for periprosthetic fractures around the femur. Invited Lecture. Jubilee Meeting 30 Years Orthopaedics Münsterlingen, Switzerland, Nov 2009

  • Stoffel K, Nicholls R, Gunnar F, Yates P. Patella relocation technique affects intraosseous blood flow during total knee arthroplasty. 10th EFFORT Congress, Barcelona, June, Spain 2010

  • Stoffel K, Nicholls R, Winata A, Dempsey A, Boyle J, Lloyd D. The effect of ankle taping on loading at the ankle and proximal joints. Medicine and Science in Sport and Exercise. 10th EFFORT Congress, Barcelona, June, Spain 2010

  • Buergi M, Stoffel K, Bereiter H. Bipolar Head Prostheses of the Hip in Young Patients – Long-term Results. 10th EFFORT Congress, Barcelona, June, Spain 2010

  • Giesinger K, Yates P, Stoffel K, Ebneter L, Day R, Kuster MS. ‚Can plate osteosynthesis of stable femoral periprosthethic fractures cause early cement mantle failure around the hip stem? A biomechanical evaluation. Swiss Orthopaedic Society. Annual Meeting, St.Gallen July , 2010

  • Attinger M, Bereiter H, Stoffel K. Early clinical and radiological outcome of total hip replacement with the short uncemented Fitmore stem. Swiss Orthopaedic Society. Annual Meeting, St.Gallen July , 2010

  • Stoffel K. Osteoporotic fractures: A serious problem of the future or a problem with a future? Swiss Orthopaedic Society. Annual Meeting, Invited Lecture, St.Gallen July , 2010

  • Buergi M, Stillhard P, Stoffel K. Grade III AC-joint injuries – is operative treatment still justifiable? 10th EFFORT Congress, Barcelona, June, Spain 2010

  • Stoffel K. Biomechanical rules in plate osteosynthesis. AOT  Symposium 10th EFFORT Congress, Barcelona, June, Spain 2010     

  • Thalmann C, Stoelzle T, Stoffel K. Distal femoral cortical hypertophy of the Fitmore cementless tapered stem within the first year: Incidence, risk factor analysis and clinical implication. Swiss Orthopaedic Society. Annual Meeting, Lausanne, June, 2011

  • Buehler G, Grehn H, Stoffel K. Pertrochanteric femur fracture after Durom® Resurfacing Hip Arthroplasty - Our Solution. Swiss Orthopaedic Society. Annual Meeting, Lausanne, June, 2011

  • Gonzales A, Grehn H, Stoffel K. Uncommon complication: The long way of a Spina scapulae fracture during mini open rotator cuff repair – A case report. Swiss Orthopaedic Society. Annual Meeting, Lausanne, June, 2011

  • Thalmann C, Meier G, Bereiter H, Stoffel K. Tibial bone cyst after total knee arthroplasty with screw fixation of the tibial component. Swiss Orthopaedic Society. Annual Meeting, Lausanne, June, 2011

  • Attinger M, Buergi M, Bereiter H, Stoffel K. Early clinical and radiological outcome of total hip replacement with the short uncemented Fitmore stem. Swiss Orthopaedic Society. Annual Meeting, Lausanne, June, 2011

  • Attinger M, Molnar L, Bereiter H, Stoffel K. Rupture of the popliteal artery complicating medial opening wedge high tibial osteotomy. Swiss Orthopaedic Society. Annual Meeting, Lausanne, June, 2011

  • Erhardt J, Khoo P, Yates P, Stoffel K. Periprosthetic fractures around polished collarless cemented stems: triple – versus double tapers. Swiss Orthopaedic Society. Annual Meeting, Lausanne, June, 2011

  • Hutter R, Stoffel K. Atypical low-energy subtrochanteric femoral fractures in patients on Bisphosphonates therapy: A report of two cases and review of the literature. Swiss Orthopaedic Society. Annual Meeting, Lausanne, June, 2011

  • Acklin, Y.P, Stoffel K, Sommer C. Clinical outcome after minimal invasive plate osteosynthesis for proximal humerus fractures. Swiss Society for Surgery. Annual Meeting, Geneva, May, 2011

  • Acklin, Y.P, Stoffel K, Sommer C. Clinical outcome after minimal invasive plate osteosynthesis for proximal humerus fractures. European Society for Trauma and Emergency Surgery. Annual Meeting, Milano, April, 2011

  • Stoffel K. Periprosthetic fractures around the hip. Annual Meeding Indian Orthopaedic Association MOACON, Invited lecture, Kuolhapur, Nov 2011.

  • Michelitsch C, Müller TS, Stoffel K, Sommer C. Locking compression plate fixation for supracondylar periprosthetic fracture of the distal femur after total knee arthroplasty. European Congress for Trauma and Emergency Surgery, Basel, May 2012

  • Thalmann C, Bereiter H, Stoffel K. Distal Femoral Cortical Hypertrophy Using The Fitmore Stem©: A Two Year Follow Up Regarding Incidence, Development And Clinical Implications. Swiss Orthopaedic Society. Annual Meeting, Basel, June , 2012

  • Kampshoff J, Stoffel K, Yates P, Kuster M. Periprosthetic fractures – which screw can be used in the cement. J Bone Joint Surg, Vol. 94-B no. Supp XXIII 220, 2012

  • Stoffel K. Biphosphonate fractures. Annual Meeting Australian Orthopaedics Association, Trauma COE. Invited lecture, Melbourne May 2013

  • Stoffel K. Salvage procedure of failed DHS. Annual Meeting Australian Orthopaedics Association, Trauma COE. Invited lecture, Melbourne May 2013

  • Stoffel K. Arthroplasty versus internal fixation for periprosthetic fractures around the hip. 2nd AOTrauma Asia Pacific Scientific. Seoul Korea May 2014

  • Stoffel K. How to handle complex proximal humerus fractures: Tipps and Tricks. Indonesian Trauma Meeting; Management on upper extremity Trauma. Malang February 2014

  • Oh JK, Schneider K, Zderic I, Stoffel K, Nork S, Gueorguiev B. What is the underlying mechanism for the failure mode observed in the Proximal Femoral Locking Compression Plate? A Biomechanical Study. 2nd AOTrauma Asia Pacific Scientific Congress. Seoul Korea May 2014

  • Jenni R, Acklin YP, Bereiter H, Stoffel K. Prospective clinical and radiostereometric (RSA) results of 24 Fitmore Hip Stems after 2 years follow up. Swiss Orthopaedic Society. Annual Meeting, St.Gallen, June, 2014

  • Papineau JL, Stoffel K, Bauer S, Hayes A, Day R, Kuster M. Biomechanical Assessment of the combination of rigid and dynamic fracture fixation for the same fracture location. Annual Scientific Meeting of the Western Australian Orthopaedic Association, Bunker Bay, Sept 2014

  • Gueorguiev B, Camino G, Zderic I, Richards G, Sancineto C., Stoffel K, Barla J, Windolf M. Kann eine Angulation der distalen Schrauben ein Ausreißen der Platte bei Versorgung mittels dynamischer Hüftschraube (DHS) verhindern? Eine biomechanische Studie. Deutscher Kongress für Orthopädie und Unfallchirurgie. Berlin, Oktober 2014

  • Stoffel K. Acetabular stress shielding in total hip arthroplasty. 1st International Hip community Convention 2014, Lucern, Oct, 2014

  • Stoffel K. The history of isoelasticity and RM technology in total hip arthroplasty. 1st International Hip community Convention 2014, Lucern, Oct, 2014

  • Bauer S, Kuster M Stoffel K. Is the combination of rigid and dynamic fracture fixation a contraindication? A biomechanical study. 74th Annual Scientific Meeting of the AOA, Melbourne, Oct 2014

  • Sands A, White C, Blankstein M, Zderic I, Ernst M, Windolf M, Richards RG, Stoffel K, Gueorguiev B. Assessment Of Ankle And Hindfoot Stability And Joint Pressures Using A Human Cadaveric Model Of A Large Lateral Talar Process Excision. A Biomechanical Study. 16th EFORT Congress. Prague, Tschekoslowakei, May 2015.

  • Stoffel K, Sommer C, Kalampoki V, Sebald A, Joeris A. Improved outcomes after the treatment of periprosthetic hip and interprosthetic femur fractures with minimal invasive techniques and recent implants?—a systematic literature review of 1571 cases. 16th European Congress of Trauma and Emergency Surgery. Amsterdam, Holland, May 2015

  • Stoffel K. Periprosthetic fractures around shoulder and elbow prosthesis. Invited lecture at AO Trauma Europe Master Course – Periprosthetic Fractures. Barcelona, Spain, 6-7.March 2015

  • Stoffel K, Zderic I, Sommer C, Eberli U, Mueller D, Oswald M, Gueorguiev B. Biomechanical evaluation of femoral neck fracture fixation with the new femoral neck system compared to diverse standard implants for osteosynthesis. 21st Congress of the European Society of Biomechanics, Prague, Tschekoslowakei, July 5 - 8 2015

  • Rieger B, Bolliger L, Stoffel K, Ilchmann T, Clauss M. Mid-Term Results Of A Modular Cementless Revision Stem (Revitan). 16th EFORT Congress. Prague, Tschekoslowakei, May 2015.

  • Siepen W, Zwicky L, Stoffel K, Ilchmann T, Clauss M. Prospective Two-Year Subsidence Analysis of 100 Cemented Polished Straight. Stems16th EFORT Congress. Prague, Tschekoslowakei, May 2015.

  • Lenz M, Stoffel K, Kielstein H, Hofmann G, Gueorguiev B. Potenzial der Plattenverankerung im großen Trochanter bei periprothetischen  Femurfrakturen Vancouver Typ B1. Deutscher Kongress für Orthopädie und Unfallchirurgie. Berlin , Deutschland, Oktober 2015.

  • Lenz M, Stoffel K, Kielstein H, Hofmann G, Gueorguiev B. Anterolaterale Doppelplatte oder verriegelbarer Plattenaufsatz bei periprosthetischen Femurfrakturen Typ Vancouver B1? – Eine biomechanische Studie. Deutscher Kongress für Orthopädie und Unfallchirurgie. Berlin , Deutschland, Oktober 2015.

  • Stoffel K, Zderic I, Sommer C, Eberli U, Mueller D, Oswald M, Gueorguiev B. Biomechanische Beurteilung der Fixation von Schenkelhalsfrakturen mit dem neuen Femoral Neck System im Vergleich zu Drei Durchbohrten Schrauben, DHS-Klinge und DHS mit Antirotationsschraube. Deutscher Kongress für Orthopädie und Unfallchirurgie. Berlin, Deutschland, 20. – 23. Oktober 2015.

  • Stoffel K, Zderic I, Sommer C, Eberli U, Mueller D, Oswald M, Gueorguiev B. The new Femoral Neck System for femoral neck fracture fixation. Biomechanical performance in comparison to diverse standard implants for osteosynthesis. SICOT Orthopaedic World Congress, Guangshou, China, 17-19 September 2015

  • Stoffel K, Zderic I, Sommer C, Eberli U, Mueller D, Oswald M, Gueorguiev B. Biomechanical evaluation of femoral neck fracture fixation with the new Femoral Neck System compared to diverse standard implants for osteosynthesis. Annual congress of European Society of Biomechanics, Prague, Tschekoslowakei, 5-8 July 2015

  • Stoffel K. ORIF of Periprosthetic proximal Femur fractures: Whats new ? Tipps and Tricks. Invited lecture. 16th European Congress of Trauma and Emergency Surgery, Amsterdam, Holland, 10-12 May 2015

  • Stoffel K. Indirekte Repositionshilfe bei subtrochantären Femurfrakturen zur Marknagelosteosynthese. AO Frühjahrstagung 2015, Fischingen, Schweiz 8.Mai

  • Thalmann C, Bereiter H, Stoffel K. 5 Year Follow Up in Using The Fitmore Stem©: General Results And Further Development And Clinical Implications Of Distal Femoral Cortical Hypertrophy. Swiss Orthopaedic Society. Annual Meeting, Basel, June , 2015

  • 1Rieger B, Bolliger L, Stoffel K, Ilchmann Th, Clauss M. Mid-Term Results Of A Modular Cementless Revision Stem (Revitan) . Swiss Orthopaedic Society. Annual Meeting, Basel, June , 2015

  • Siepen W, Zwicky L, Stoffel K, Ilchmann Th, Clauss M. Prospective two-year subsidence analysis of 100 cemented polished straight stems. Swiss Orthopaedic Society. Annual Meeting, Basel, June , 2015

  • Hutter R, Zdravkovic V, Bereiter H, Grehn H, Stoffel K. Impact of operation technique in total knee arthroplasty: Gap balancing (tibia first) versus measured resection technique (femur first) . Swiss Orthopaedic Society. Annual Meeting, Basel, June , 2015

  • Stoffel K. Periprosthetic fractures around the hip. Invited Lecture, Vereniging voor Orthopedisch Chirurgisch Assistenten, Amsterdam, November, 2015

  • Stoffel K, Zderic I, Sommer C, Eberli U, Mueller D, Oswald M, Gueorguiev B. The new Femoral Neck System for femoral neck fracture fixation. Biomechanical performance versus diverse standard implants for osteosynthesis. 17th Congress of the European Society for Trauma and Emergency Surgery (ECTES), April, Vienna, 2016.

  • Stoffel K. Pathologische Frakturen bei Bisphophonaten. Invited Lecture,  Kongress für Alterstraumatologie, Marburg, März, 2016.

  • Gueorguiev B, Filipov O, Stoffel K, Sommer C. Filipov's method of biplane double-supported screw fixation extremely reduces the risk of fixation failure in femoral neck fractures. Clinical outcomes in 207 patients. DGOU, Berlin, Oct. 2016

  • Lenz M, Stoffel K, Kielstein H, Hofmann G, Gueorguiev B. Proximal plate fixation in periprosthetic femoral shaft fractures – trochanteric hook or bicortical embracement? A biomechanical study. DGOU, Berlin, Oct. 2016

  • Filipov O, Stoffel K, Gueorguiev B, Sommer  C.  Filipov's method of biplane double-supported screw fixation extremely reduces the risk of fixation failure in femoral neck fractures. Clinical outcomes in 207 patients. 15th Biennial Conference of the ISFR (International Society of Fracture Repair), Munich, Germany, June 2016

  • Lenz M, Stoffel K, Gueorguiev B, Kielstein H, Hofmann G. Biomechanical Potential Of Double Plating Versus Single Lateral Plating In Periprosthetic Femur Fractures. EFORT, Geneva, June, 2016

  • Lenz M, Stoffel K, Kielstein H, Majo K, Hofmann G. Gueorguiev B.  Longer Plate Or Bicortical Locking?-A Biomechanical Comparison Of Two Techniques For Periprosthetic Femur Fracture Fixation. EFORT, Geneva, June, 2016

  • Siepen W, Hurni B, Clauss M, Stoffel K. Results and difficulties in the first 6 months of a newly founded comanaged orthogeriatric fracture unit. Alterstraumatologie Kongress, Marburg, March, 2016

  • Stoffel K. Worst Case Sezenarios in Biphosphonate Fractures. Invited lecture. Alterstraumatologie Kongress, Marburg, March, 2016

  • Lenz M, Stoffel K, Mayo K, Kielstein H, Hoffmann G, Gueorguiev B. Influence of Bone Mineral Density in fracture fixation of the greater trochanter. A biomechanical study. DGOU, Berlin, Oct. 2016

  • Stoffel K. Epidemiology, risk factors, challenges, outlook and classification of periprosthetic hip fractures. Invited Lecture AOTrauma / AORecon Session—Periprosthetic fractures after THA. EFORT, Geneva, June, 2016

  • Stoffel K, Zderic I, Sommer S, Eberli U, Mueller D, Oswald M, Gueorguiev B. The new Femoral Neck System for femoral neck fracture fixation. Biomechanical performance versus diverse standard implants for osteosynthesis. European Orthopaedic Research Society (EORS), Bologna, September, 2016

  • Lenz M, Stoffel K, Mayo K, Kielstein H, Hoffmann G, Gueorguiev B. Fixation of periprosthetic fractures – trochanteric hook or subtrochanteric bicortical locking screws? ESB, Lyon, France, July 2016

  • Lenz M, Stoffel K, Mayo K, Kielstein H, Hoffmann G, Gueorguiev B. The potential of plate fixation in the greater trochanter, 15th Biennial Conference of the ISFR (International Society of Fracture Repair), Munich, Germany, June, 2016

  • Stoffel K. Bone preservation: how does biomechanics improve the function and outcome of prosthesis. Moderator of Symposium Invited Lecture AOTrauma / AORecon Session—Periprosthetic fractures after THA. EFORT, Geneva, June, 2016

  • Stoffel K. Invited lecture: Short stems in total hip arthroplasty: Early experience with the Optimys stem. Wintherthur, Switzerland, June, 2016

  • Stoffel K. Invited Lecture. Femoral head fractures: Fixation Strategies. Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Development, rationale & future of Locking plates. Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Periprosthetic and periimplant fractures around the knee. Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Periprosthetic and periimplant fractures around the schoulder and elbow. Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Cement augmentation using the new TFNA. Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Evaluation and management of Pilon Fractures: Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Atypical fractures: Fixation Strategies. Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Complications of locking plates. Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Biomechanical principles in fracture stabilization - When and how can I mix principles? Annual Congress of the Indian Trauma Association; Traumacon, Mumbai, August 2016

  • Stoffel K. Invited Lecture. Joint preservation in hips. 39th Annual Meeting of the Singapore Orthopaedic Association, Singapore, October 2016

  • Stoffel K. Invited Lecture. Duo Mobility in Revision Arthroplasty. 39th Annual Meeting of the Singapore Orthopaedic Association, Singapore, October 2016

  • Stoffel K. Invited Lecture. Assessing the patient with peri-prosthetic fractures of the hip and knee: history, exam and imaging. 39th Annual Meeting of the Singapore Orthopaedic Association, Singapore, October 2016

  • Stoffel K. Invited Lecture. Technique of osyeosynthesis in periprosthetic fractures of the hip and knee. 39th Annual Meeting of the Singapore Orthopaedic Association, Singapore, October 2016

  • Stoffel K. Invited Lecture. Stem fixation in Europe: Trends and Challenges. The 47th Annual Meeting of Japanese Society for Replacement Arthroplasty. Date: 24-25 February 2017. Okinawa Convention Center, Okinawa, Japan

  • Stoffel K. Inivted Lecture: Sehnenverletzungen im Sport: Hamstrings und sonstige Sehnenverletzungen der Hüfte. Forum for Advanced Medical Education. Basel, April, Switzerland.

  • odorov D, Zderic I, Stoffel K, Richards G, Lenz M, Enchev D, Gueorguiev B. Is Augmented LISS Plating Biomechanically Advantageous In Comparison To Conventional LISS Plating? 18th EFORT Congress. Vienna, Austria. June 2017.

  • Stoffel K. Symposium: Current Challenges In Joint Arthoplasty And Possible Solutions: Bone Preservation: A Solution For Individual Reconstruction Of The Patients Anatomy. 18th EFORT Congress. Vienna, Austria. June 2017.

  • Stoffel K. Invited Lecture. Advanced Course In Total Hip Replacement: Principles Of Internal Fixation Of Periprosthetic Fractures. 18th EFORT Congress. Vienna, Austria. June 2017.

  • Thalmann C, Bereiter H, Postler, A, Günther KP, Cattaneo G, Camera A, Kluge W, Grogan R, Chotta S, Goetze  C, Stoffel K. Short Stem: 5-Years Experience With The FitmoreTM Stem – A Prospective Multi-Centre Clinical Follow-Up Study. 18th EFORT Congress. Vienna, Austria. June 2017.

  • Todorov D, Zderic I, Stoffel K, Richards G, Lenz M, Enchev D, Gueorguiev B. Biomechanical Investigations of augmented vs conventional Liss Plating of distal femoral fractures. 23 Congress of the European Society of Biomechanics, Seville, Spain, June 2017.

  • D.Todorov, B.Gueorguiev, I.Zderic, K.Stoffel, R.G.Richards, M.Lenz, D.Enchev, A.Baltov, Biomechanical comparison of augmented locking plate fixation verus conventional locking plating, EORS, Munich, Germany, September 2017

  • D.Todorov, B.Gueorguiev, I.Zderic, K.Stoffel, R.G.Richards, M.Lenz, D.Enchev, A.Baltov, Are there biomechanical benefits in augmentation of LISS plating compared to conventional LISS plating? Kuentscher Society, Osteosynthese International 2017, Munich, Germany, September 2017

  • Stoffel K. Invited Lecture. New concepts in the treatment of femoral neck fractures. 5th US AOTK Symposium, Seattle, USA, September 2017

  • Stoffel K. Invited Lecture. Periprosthetic femur fracture fixation: “Recon view”. 5th US AOTK Symposium, Seattle, USA, September 2017

  • Stoffel K. Invited Lecture. The great hip debate: Femoral head size: Bigger is better? 5th Indonesian Hip and Knee Society annual Scientific Meeting, Jakarta, Indonesia, August 2017 

  • Stoffel K. Invited Lecture. An update on patella fracture fixation. 5th Indonesian Hip and Knee Society annual Scientific Meeting, Jakarta, Indonesia, August 2017 

  • Stoffel K. Invited Lecture. Reduction and Fixation Principles in Periprosthetic Femur Fractures. 5th Indonesian Hip and Knee Society annual Scientific Meeting, Jakarta, Indonesia, August 2017 

  • Stoffel K. Invited Lecture. Cement augmentation of the neck screw in proximal femur fractures: a case based lecture. 5th Indonesian Hip and Knee Society annual Scientific Meeting, Jakarta, Indonesia, August 2017 

  • Stoffel K. Invited Lecture. Evidence Based Management of Subtrochanteric Fractures. 5th Indonesian Hip and Knee Society annual Scientific Meeting, Jakarta, Indonesia, August 2017 

  • Stoffel K. Invited Lecture. Periprosthetic Fractures Around the Hip: Is the stem loose? 5th Indonesian Hip and Knee Society annual Scientific Meeting, Jakarta, Indonesia, August 2017 

  • Stoffel K. Invited Lecture. Why do cups fail? Challenges on the acetabular side. Congress Sociedad Espanola de Cirugia Ortopedica y Traumatologia (SECOT). Barcelona, Spain, September 2017

  • Stoffel K. Invited Lecture. Stress shielding on the acetabular side – it is an issue? Congress Sociedad Espanola de Cirugia Ortopedica y Traumatologia (SECOT). Barcelona, Spain, September 2017

  • Stoffel K. Invited Lecture. Unmet needs in periprosthetic fracture fixation. 12th European AOTK Expert’s Symposium, Mainz, November 2017

  • Stoffel K. Invited Lecture. An algorithm how to treat neck of femur fractues: Existing and new concepts. 12th European AOTK Expert’s Symposium, Mainz, November 2017

Prof. Dr. med Dr. phil Karl Stoffel

Ärztlicher Leiter Klinik für Orthopädie am Bethesda Spital 

Teamleiter Hüfte/Becken

Klinik für Orthopädie und Traumatologie des Bewegungsapparates

Universitätsspital Basel