The Strasbourg Osteosynthesis Research Group (S.O.R.G) has been initiated in 1988 by Prof. Champy (Strasbourg), Prof. Pape (Cologne), Prof. Gerlach (Cologne) and Mr. Leen de Zeeuw (Tuttlingen).


Twenty European Oral- and Maxillofacial surgeons came together in Obernai/Strasbourg to form a group of scientists, aiming to encourage and promote the use of the "Strasbourg Miniplate Osteosynthesis Technique" world-wide. Surgeons from all over Europe participated in this meeting: Brusati, Italy; Cawood, Great Britain; Ewers, Austria; Forteza-Rey, Spain; Gerlach, Germany; Hjörting-Hansen, Denmark; Hoffmeister, Germany; Iatrou, Greece; Johannsson, Sweden; Krekmanov, Sweden; Mela, Italy; Pericot, Spain; Politis, Belgium; Schumann, Germany; Simpson, Great Britain; Ward-Booth, Great Britain.


Biomechanical studies of the fractured mandible, which had been conducted in Strasbourg introduced a new rationale in the treatment of mandibular fractures. Although the study was directed to the management of fractures of the mandible, the new biomechanical principles of osteosynthesis were transferred to orthognathic surgery, craniofacial surgery, treatment of midfacial and cranial fractures, reconstructive oncologic surgery, and to preimplant preprosthetic surgery, including dental implantology. The use of shorter screws and thinner load-sharing plates for fixation of bone and bone grafts revolutionized all techniques in craniomaxillofacial surgery.

1975 until today

The interest in the new method and the expansion of the use of osteosynthesis miniplates and the application of principles of the 3D fixation to all fields of Cranio-Maxillofacial Surgery had resulted in a growing international demand of teaching and surgical education. The growing need for organizing research and scientific exchange in the new field became evident. Today, S.O.R.G comprises a worldwide group of international expert surgeons with clinical expertise and scientific interest in all techniques of esthetic, plastic and restorative surgery of the craniofacial area.

The Aims

The aims of S.O.R.G are to foster the scientific development at all levels by both experimental research and clinical studies, as well as publications and continuing medical education. A major focus of the group is the development of new techniques and improved instrumentation in the fields of CMF surgery. At the present time, S.O.R.G is represented by more than 60 renowned colleagues from universities and hospitals in all five continents.

Scientific Independence of S.O.R.G.

The scientific independence of scientists and physicians is strictly guaranteed by the principles which form the basis of the constitution of the Group. Since its foundation, intellectual and personal independence of members of the group can be considered as a model for cooperation between researchers and manufacturing companies. It is a guaranty for the high scientific quality of both the research and the educational program.




Founding Fathers

Maxime Champy
Hans-Dieter Pape 
Leen de Zeuw 
Klaus-Louis Gerlach