Search Results - "PERREN, S. M"

Helical plating - a novel technique to increase stiffness in defect fractures by Lenz, M, Varga, P, Mischler, D, Gueorguiev, B, Klos, K, Fernandez dell'Oca, A, Regazzoni, P, Richards, R G, Perren, S M

“…Single-plate fixation bridging bone defects provokes nonunion and risks plate-fatigue failure due to under- dimensioned implants. Adding a helical plate to…”
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Tissue deformation controlling fracture healing by Hente, R.W., Perren, S.M.

“…To achieve optimal flexibility in biological internal fracture fixation two questions require clarification: which biomechanical parameter controls healing and…”
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The influence of cyclic compression and distraction on the healing of experimental tibial fractures by Hente, R, Füchtmeier, B, Schlegel, U, Ernstberger, A, Perren, S.M

“…Interfragmentary displacement has a main effect on callus formation in fracture healing. To test whether compressive or distractive displacements have a more…”
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Experimental Rotator Cuff Repair. A Preliminary Study by GERBER, CHRISTIAN, SCHNEEBERGER, ALBERTO G, PERREN, STEPHAN M, NYFFELER, RICHARD W

“…BackgroundThe repair of chronic, massive rotator cuff tears is associated with a high rate of failure. Prospective studies comparing different repair…”
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Assessment of intra-operative surgical performance: proof of concept of complete intra-operative image documentation in orthopaedic trauma by P, Regazzoni, A, Fernandez, SM, Perren

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Tissue reaction to implants of different metals: a study using guide wires in cannulated screws by Devine, D M, Leitner, M, Perren, S M, Boure, L P, Pearce, S G

“…Cannulated screws, along with guide wires, are typically used for surgical fracture treatment in cancellous bone. Breakage or bending deformation of the guide…”
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Treatment of diaphyseal fractures of the forearm using the Point Contact Fixator (PC-Fix): Results of 387 fractures of a prospective multicentric study (PC-Fix II) by Haas, N., Hauke, Chr, Schütz, M., Kääb, M., Perren, S.M.

“…Fractures of the forearm are considered to be a very good indication for plating. Conventional plating is still technically demanding. Extensive animal studies…”
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Mechanical Stimulation of Fracture Healing - Stimulation of Callus by Improved Recovery by HENTE, R., PERREN, S. M.

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Fracture healing: fracture healing understood as the result of a fascinating cascade of physical and biological interactions. Part II by Perren, S M

“…Based on our own observations an explanation of the different factors influencing bone reaction is proposed. Special attention is given to the aspect of tissue…”
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Absolute or relative stability in minimal invasive plate osteosynthesis of simple distal meta or diaphyseal tibia fractures? by Wenger, R, Oehme, F, Winkler, J, Perren, S.M, Babst, R, Beeres, F.J.P

“…Abstract Introduction Minimal invasive plate osteosynthesis in simple distal meta or diaphyseal tibia fractures can be applied using absolute (lag screw and…”
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Force transfer between the plate and the bone: relative importance of the bending stiffness of the screws and the friction between plate and bone by Cordey, J, Borgeaud, M, Perren, S.M

“…Stability in plate fixation of fractures relates to the motionless fastening between plate and bone. When the plate is affixed to the bone, high shear force…”
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PC-Fix and local infection resistance – Influence of implant design on postoperative infection development, clinical and experimental results by Eijer, H., Hauke, C., Arens, S., Printzen, G., Schlegel, U., Perren, S.M.

“…Bacterial infection is still one of the main complications after internal fixation of fractures. The design of implants influences local infection resistance…”
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Evolution and rationale of locked internal fixator technology: Introductory remarks by Perren, Stephan M.

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Understanding Fracture Healing Biomechanics Based on the "Strain" Concept and its Clinical Applications by Perren, S M, Fernandez, A, Regazzoni, P

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Direction-dependent constriction flow in a poroelastic solid: the intervertebral disc valve by Ayotte, D C, Ito, K, Perren, S M, Tepic, S

“…We hypothesize that a direction-dependent flow resistance exists in the intervertebral disc due to constriction flow in the cartilage endplates. A comparison…”
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Fracture healing: fracture healing understood as the result of a fascinating cascade of physical and biological interactions. Part I. An Attempt to Integrate Observations from 30 Years AO Research by Perren, S M

“…The choice of best procedure in fracture treatment relies on a proper understanding of tissue reactions to the prevailing mechanical and biological conditions…”
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Strain distribution in plated and unplated sheep tibia an in vivo experiment by Gautier, E, Perren, S.M, Cordey, J

“…After plate osteosynthesis changes in bone biology and bone mechanics are observed in the plated bone segment. Compromise of the vascular supply in the plate…”
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How to Choose between the Implant Materials Steel and Titanium in Orthopedic Trauma Surgery: Part 2 - Biological Aspects by Perren, S M, Regazzoni, P, Fernandez, A A

“…BIOLOGICAL ASPECTS OF STEEL AND TITANIUM AS IMPLANT MATERIAL IN ORTHOPEDIC TRAUMA SURGERY The following case from the ICUC database, where a titanium plate was…”
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Stress protection due to plates: myth or reality? A parametric analysis made using the composite beam theory by Cordey, J, Perren, S.M, Steinemann, S.G

“…A generally accepted idea has been that plate fixation of fractures may result in the structural adaptation of bone (bone loss) to reduced stress (stress…”
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Cerclage, evolution and potential of a Cinderella technology. An overview with reference to periprosthetic fractures by Perren, S M, Fernandez Dell'Oca, A, Lenz, M, Windolf, M

“…Periprosthetic fractures are increasingly frequent. The fracture may be located over the shaft of the prosthesis, at its tip or below. The treatment of…”
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