doc. Ing. Zdeněk Florian, CSc.
E-mail:   florian@fme.vutbr.cz  Dept.:   Institute of Solid Mechanics, Mechatronics and Biomechanics Dept. of Biomechanics Position:   Associate Professor Room:   A2/719

Supervised courses:

• Biomechanics II - Musculoskeletal (RBI)

Publications:

• MARCIÁN, P.; BORÁK, L.; VALÁŠEK, J.; KAISER, J.; FLORIAN, Z.; WOLFF, J.:
  Finite Element Analysis of Dental Implant Loading on Atrophic and Non-atrophic Cancellous and Cortical Mandibular Bone - a Feasibility Study, ELSEVIER SCI LTD
  journal article in Web of Science
• MARCIÁN, P.; VALÁŠEK, J.; HRSTKA, M.; MAJER, Z.; ŠEVEČEK, O.; PROFANT, T.; DLOUHÝ, I.; FLORIAN, Z.:
  Computational Modeling of Porous Ceramics with Bioactive Layer,
  MATERIALS STRUCTURE & MICROMECHANICS OF FRACTURE VII, pp.378-381, ISBN 978-3-03785-934-6, (2014), Trans Tech Publications
  conference paper
  akce: Materials Structure & Micromechanics of Fracture (MSMF-7), Brno, 01.07.2013-03.07.2013
• JANŮ, I.; KOČIŠ, J.; NÁVRAT, T.; FLORIAN, Z.; WENDSCHE, P.:
  Srovnávací analýza šroubů Socon CS a Socon v ošetření osteoporotických zlomenin torakolumbální páteře - biomechanická studie,
  Acta Chirurgie Orthopaedicae et Traumatologie Čechoslovaca, Vol.78, (2011), No.4, pp.334-338, ISSN 0001-5415, Česká společnost pro ortopedii a traumatologii
  journal article - other
• BORÁK, L.; FLORIAN, Z.; BARTÁKOVÁ, S.; PRACHÁR, P.; MURAKAMI, N.; ONA, M.; IGARASHI, Y.; WAKABAYASHI, N.:
  Bilinear elastic property of the periodontal ligament for simulation using a finite element mandible model,
  DENTAL MATERIALS JOURNAL, Vol.30, (2011), No.4, pp.448-454, ISSN 0287-4547
  journal article - other
• ČIŽMÁŘ, I.; FLORIAN, Z.; NÁVRAT, T.; PALOUŠEK, D.:
  A biomechanical study of a suture between the deltoid muscle and a free tendon graft for reconstruction of the elbow extension, PALACKY UNIV, MEDICAL FAC, CENTRAL LIBRARY, HNEVOTINSKA 3, OLOMOUC, CZECH REPUBLIC
  journal article in Web of Science
• URBANOVÁ, L.; SRNEC, R.; PROKS, P.; STEHLÍK, L.; FLORIAN, Z.; NÁVRAT, T.; NEČAS, A.:
  Comparison of the Resistance to Bending Forces of the 4.5 LCP Plate-rod Construct and of 4.5 LCP Alone Applied to Segmental Femoral Defects in Miniature Pigs,
  ACTA VETERINARIA BRNO, Vol.79, (2010), No.4, pp.613-620, ISSN 0001-7213, University of Veterinary and Pharmaceutical Sciences in Brno
  journal article - other
• KOČIŠ, J.; NÁVRAT, T.; FLORIAN, Z.; WENDSCHE, P.:
  Biomechanical testing of spinal segment fixed by thoracolumbar spine locking plate on the swine lumbar spine,
  Biomedical Papers, Vol.154, (2010), No.4, pp.345-354, ISSN 1213-8118, Palacký University
  journal article - other
• SMIŽANSKÝ, M.; GALLO, J.; FLORIAN, Z.; NOVOTNÝ, R.:
  FRAKTURA DŘÍKU TIBIÁLNÍ KOMPONENTY TEP KOLENNÍHO KLOUBU, Galen
  journal article in Web of Science

List of publications at Portal BUT

Abstracts of most important papers:

• JANŮ, I.; KOČIŠ, J.; NÁVRAT, T.; FLORIAN, Z.; WENDSCHE, P.:
  Srovnávací analýza šroubů Socon CS a Socon v ošetření osteoporotických zlomenin torakolumbální páteře - biomechanická studie,
  Acta Chirurgie Orthopaedicae et Traumatologie Čechoslovaca, Vol.78, (2011), No.4, pp.334-338, ISSN 0001-5415, Česká společnost pro ortopedii a traumatologii
  journal article - other
  The purpose of the study is compare the anchorage strength of Socon CS cannulated pedicle screws (B. Braun, Aesculap) with that of Socon screws in human cadaver vertebrae, using pull-out strength testing. MATERIAL Twelve samples involving T12 to L3 vertebrae were prepared and a total of 20 pedicle screws, 10 Socon CS and 10 Socon screws, were inserted in them. All screws were 55 mm in length and 6 mm in diameter. The results of this study confirm the hypothesis that the anchorage of Socon CS cannulated pedicle screws with bone cement augmentation is disrupted by significantly higher pull-out strength than that of Socon screws, when subjected to monotonous loading.
• BORÁK, L.; FLORIAN, Z.; BARTÁKOVÁ, S.; PRACHÁR, P.; MURAKAMI, N.; ONA, M.; IGARASHI, Y.; WAKABAYASHI, N.:
  Bilinear elastic property of the periodontal ligament for simulation using a finite element mandible model,
  DENTAL MATERIALS JOURNAL, Vol.30, (2011), No.4, pp.448-454, ISSN 0287-4547
  journal article - other
  This study aimed to introduce a procedure for determining the bilinear elastic moduli (E1 and E2) of the periodontal ligament for a mathematical tooth model to analyse stress in the mandible.
• ČIŽMÁŘ, I.; FLORIAN, Z.; NÁVRAT, T.; PALOUŠEK, D.:
  A biomechanical study of a suture between the deltoid muscle and a free tendon graft for reconstruction of the elbow extension, PALACKY UNIV, MEDICAL FAC, CENTRAL LIBRARY, HNEVOTINSKA 3, OLOMOUC, CZECH REPUBLIC
  journal article in Web of Science
  It is possible to reconstruct the elbow motion in tetraplegic patients using the posterior portion of the deltoid muscle. In this surgery however, it is a problem to achieve a firm suture between the deltoid muscle and the tendon graft which extends the muscle and is sewn in order to compensate for the plegic musculus triceps brachii function. This study assesses two methods of attachment between muscle and free tendon graft from the biomechanical point of view.
• URBANOVÁ, L.; SRNEC, R.; PROKS, P.; STEHLÍK, L.; FLORIAN, Z.; NÁVRAT, T.; NEČAS, A.:
  Comparison of the Resistance to Bending Forces of the 4.5 LCP Plate-rod Construct and of 4.5 LCP Alone Applied to Segmental Femoral Defects in Miniature Pigs,
  ACTA VETERINARIA BRNO, Vol.79, (2010), No.4, pp.613-620, ISSN 0001-7213, University of Veterinary and Pharmaceutical Sciences in Brno
  journal article - other
  The study deals with the determination of mechanical properties, namely resistance to bending forces, of flexible buttress osteosynthesis using two different bone-implant constructs stabilizing experimental segmental femoral bone defects (segmental ostectomy) in a miniature pig ex vivo model using 4.5 mm titanium LCP and a 3 mm intramedullary pin ("plate and rod" construct) (PR-LCP), versus the 4.5 mm titanium LCP alone (A-LCP). The "plate and rod" fixation (PR-LCP) of the segmental femoral defect is significantly more resistant (p < 0.05) to bending forces (200 N, 300 N, and 500 N) than LCP alone (A-LCP). Stabilisation of experimental segmental lesions of the femoral diaphysis in miniature pigs by flexible bridging osteosynthesis 4.5 mm LCP in combination with the "plate and rod" construct appears to be a suitable fixation of non-reducible fractures where considerable strain of the implants by bending forces can be assumed. These findings will be used in upcoming in vivo experiments in the miniature pig to investigate bone defect healing after transplantation of mesenchymal stem cells in combination with biocompatible scaffolds.
• SMIŽANSKÝ, M.; GALLO, J.; FLORIAN, Z.; NOVOTNÝ, R.:
  FRAKTURA DŘÍKU TIBIÁLNÍ KOMPONENTY TEP KOLENNÍHO KLOUBU, Galen
  journal article in Web of Science
  An unusual case of implant silure after revision total knee arthroplasty (TKA) is presented and the case report is completed with the results of an ensuing biomechanice study made to splane possible causes leading to a fracture of the tibial stem. For this we used elektron microscopic and biomechanice analyses. There was no material found at the site of fracture. By computerized modeling of the clinical situation, however, we found out asymmetrical progressive osteolysis of the proximal tibia could have coused significant changes in mechanical straining associatedeith quatitative alternations in the process of degradation and erosion of the implant, eventually leading to the fracture of the tibial stem, in this way mechanical straining at the site of the fracture could have exceeded the failure threshold of the titanium alloy. Stem fractures of a currant tibial component design has not yet been described in the literature. The only failure so far reported concers the stem of femoral component, and this has also been explained by biomechanicals reasons. If follows from this study patients with progressive osteolysis around the TKA should up more frequently. The conclusion of this biomechanical analysis emphasize the importance of a thorough reconstruction of bone defects in order to improve long-term survival of the implant.