[Mandibular osteosynthesis according to the Michelet technic. Justification of new material. Results].
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Biomedical subjects
Publications and source records attributed to A Wilk.
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Experiments performed in collaboration with a group of engineers lead to following affirmations: - mandible's external cortex is strong enough to endure strains resulting from screws, - osteosynthesis plate must be screwed in high position, - the material elaborated according to biomechanical data appears constantly reliable despite more marked miniaturization and improved malleability.
The purpose of this communication is: - To report the conclusions of a critical study realized in collaboration with a group of engineers and concerning some presently obtainable osteosynthesis materials. - To ascertain mechanical characteristics required by screws and plates used for this type of surgery. - To relate a 4 years experience concerning 130 osteosynthesis (32 performed with a new material worked out according to biomechanical data).
Solving the problems inherent in the treatment of Gustillo type III open fractures of leg requires the intervention of multiple surgical disciplines: orthopedic, plastic and vascular. Consensus exists with respect to many therapeutic principles, but several points remain the subject of debate. Based on an extensive literature review, the indications, results and prognosis for both skin covery and bone reconstruction are defined as precisely as possible. Early treatment is essential, the loss of soft tissue substance being repaired within the first two weeks, particularly if the use of a free flap is envisaged. Two stage treatment, cutaneous and bony, offers the advantage of safety, with additional benefits if conventional grafts are applied within 1 to 2 months. Overall therapeutic results are dependent on good interdisciplinary team work and, to an increasing extent, on the urgent participation of plastic surgeons experienced in microsurgical techniques.