Tepic S, Remiger AR, Morikawa K, Predieri M, Perren SM.
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Strength recovery in fractured sheep tibia treated with a plate or an internal fixator: an experimental study with a two-year follow-up.
Research Institute, AO/ASIF Foundation, Davos, Switzerland.
January 1997
OBJECTIVES: Comparison of fracture healing with two different implants: a conventional Dynamic Compression Plate (DCP) and a new internal Point Contact Fixator (PC-Fix). DESIGN: Randomized, prospective study in experimental animals. Observation times: 12, 24, 48 and 96 weeks, with six sheep per group. SETTING: Following surgery, animals were kept with unrestricted weight-bearing in individual stalls for…
Arens S, Hansis M, Schlegel U, Eijer H, Printzen G, Ziegler WJ, Perren SM.
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Infection after open reduction and internal fixation with dynamic compression plates–clinical and experimental data.
AO/ASIF Research Institute, Davos, Switzerland.
1996
Infection rates for open reduction and internal fixation (ORIF) with the DCP in clinical studies are based on heterogeneous data on general risk factors and do not take into account the direct effect of the implant (material, design, surface, technique). The initial degree of bacterial contamination is generally unknown and the applied…
Ungersböck A, Pohler OE, Perren SM.
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Evaluation of soft tissue reactions at the interface of titanium limited contact dynamic compression plate implants with different surface treatments: an experimental sheep study.
Department of Orthopaedic Surgery, University of Bern, Switzerland.
April 1996
Five types of limited contact dynamic compression plates (LC-DCPs) of pure titanium with different surface treatments and an electropolished stainless steel LC-DCP were tested. The surface roughness parameters and chemical surface conditions were determined and checked for probable surface contamination. After an implantation period…
Miclau T, Remiger A, Tepic S, Lindsey R, McIff T.
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A mechanical comparison of the dynamic compression plate, limited contact-dynamic compression plate, and point contact fixator.
Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX 77030, USA.
February 1995
Cortical bone porosis associated with the dynamic compression plate (DCP) prompted the development of the limited-contact dynamic compression plate (LC-DCP) and the point-contact fixator (PC-Fix) to increase bone vascularity. However, the comparative fixation characteristics of the three designs are unknown. Transverse…
Ungersböck A, Pohler O, Perren SM.
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Evaluation of the soft tissue interface at titanium implants with different surface treatments: experimental study on rabbits.
AO/ASIF Research Institute Davos, Switzerland.
1994
Recently, a dominant influence of the surface roughness parameters for the soft tissue reaction at the implant tissue interface was found in an experimental study on sheep. The purpose of the present study is to correlate the surface roughness parameters of different experimental bone plates to the results of the histomorphometric analyses…
