Marco Viceconti

Summary

Affiliation: Laboratorio di Tecnologia Medica
Country: Italy

Publications

  1. doi Are spontaneous fractures possible? An example of clinical application for personalised, multiscale neuro-musculo-skeletal modelling
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    J Biomech 45:421-6. 2012
  2. pmc Relationship between obesity and early failure of total knee prostheses
    Barbara Bordini
    Laboratorio Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, Bologna, Italy
    BMC Musculoskelet Disord 10:29. 2009
  3. ncbi On the biomechanical stability of cementless straight conical hip stems
    M Viceconti
    Laboratorio di Tecnologia Medica, Rizzoli Orthopaedic Institute, Bologna, Italy
    Proc Inst Mech Eng H 220:473-80. 2006
  4. ncbi Even a thin layer of soft tissue may compromise the primary stability of cementless hip stems
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136, Bologna, Italy
    Clin Biomech (Bristol, Avon) 16:765-75. 2001
  5. ncbi The primary stability of a cementless stem varies between subjects as much as between activities
    Alberto Pancanti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, Bologna 40136, Italy
    J Biomech 36:777-85. 2003
  6. ncbi Numerical model to predict the long-term mechanical stability of cementless orthopaedic implants
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Med Biol Eng Comput 42:747-53. 2004
  7. ncbi An automated method to position prosthetic components within multiple anatomical spaces
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136, Bologna, Italy
    Comput Methods Programs Biomed 70:121-7. 2003
  8. ncbi Effect of display modality on spatial accuracy of orthopaedic surgery pre-operative planning applications
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Med Inform Internet Med 27:21-32. 2002
  9. ncbi Automatic generation of finite element meshes from computed tomography data
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Crit Rev Biomed Eng 31:27-72. 2003
  10. ncbi CT-based surgical planning software improves the accuracy of total hip replacement preoperative planning
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Med Eng Phys 25:371-7. 2003

Collaborators

Detail Information

Publications149 found, 100 shown here

  1. doi Are spontaneous fractures possible? An example of clinical application for personalised, multiscale neuro-musculo-skeletal modelling
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    J Biomech 45:421-6. 2012
    ..Thus, is biomechanically possible that spontaneous femoral neck fractures occur during level walking, due to a combination of severe osteoporosis and severe neuromotor degradation...
  2. pmc Relationship between obesity and early failure of total knee prostheses
    Barbara Bordini
    Laboratorio Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, Bologna, Italy
    BMC Musculoskelet Disord 10:29. 2009
    ....
  3. ncbi On the biomechanical stability of cementless straight conical hip stems
    M Viceconti
    Laboratorio di Tecnologia Medica, Rizzoli Orthopaedic Institute, Bologna, Italy
    Proc Inst Mech Eng H 220:473-80. 2006
    ..Preliminary tests showed that a stem with the addition of such fins presents good primary stability in all tested conditions...
  4. ncbi Even a thin layer of soft tissue may compromise the primary stability of cementless hip stems
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136, Bologna, Italy
    Clin Biomech (Bristol, Avon) 16:765-75. 2001
    ..Aim of the present study is to quantify the minimum thickness of mechanically non-bearing regions around a cementless prosthesis necessary to loose the implant enough to activate interface tissue differentiation...
  5. ncbi The primary stability of a cementless stem varies between subjects as much as between activities
    Alberto Pancanti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, Bologna 40136, Italy
    J Biomech 36:777-85. 2003
    ..The results obtained from simulations suggest that the strategy the hip replacement patient adopts to perform a given motor task, may be, for the implant stability, equally or even more critical than the type of motor task performed...
  6. ncbi Numerical model to predict the long-term mechanical stability of cementless orthopaedic implants
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Med Biol Eng Comput 42:747-53. 2004
    ....
  7. ncbi An automated method to position prosthetic components within multiple anatomical spaces
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136, Bologna, Italy
    Comput Methods Programs Biomed 70:121-7. 2003
    ..For this reason, the automatic method should be chosen to develop the automatic positioning of a stem in a database of anatomies...
  8. ncbi Effect of display modality on spatial accuracy of orthopaedic surgery pre-operative planning applications
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Med Inform Internet Med 27:21-32. 2002
    ..8 mm and 16.7 deg for the 3D-rendering interface. The results of this study indicate an important effect of the type of visualization modality used to represent CT data on final accuracy of the planning operation...
  9. ncbi Automatic generation of finite element meshes from computed tomography data
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Crit Rev Biomed Eng 31:27-72. 2003
    ..However, some of these methods can already be successfully used in various application contexts, and a few guidelines are drawn...
  10. ncbi CT-based surgical planning software improves the accuracy of total hip replacement preoperative planning
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Med Eng Phys 25:371-7. 2003
    ..The surgical planning performed with the Hip-Op system is accurate and repeatable, especially for the socket and for less experienced surgeons...
  11. doi Multimodal fusion of biomedical data at different temporal and dimensional scales
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Italy
    Comput Methods Programs Biomed 102:227-37. 2011
    ..openmaf.org) indicate that it is possible to develop effective environments for interactive visualisation of multiscale biomedical data...
  12. ncbi Effect of the initial implant fitting on the predicted secondary stability of a cementless stem
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Med Biol Eng Comput 42:222-9. 2004
    ..For the varus configuration, which lacks cortical support, the algorithm predicted a completed loosening...
  13. ncbi Automatic generation of accurate subject-specific bone finite element models to be used in clinical studies
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, Bologna 40136, Italy
    J Biomech 37:1597-605. 2004
    ..Thus, it may be concluded that the method presents a generality sufficient to cope with almost any orthopaedic application...
  14. doi Pre-clinical validation of joint prostheses: a systematic approach
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Italy
    J Mech Behav Biomed Mater 2:120-7. 2009
    ..The proposed approach is illustrated using the validation of a cemented epiphyseal stem as an example...
  15. ncbi Primary stability of an anatomical cementless hip stem: a statistical analysis
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    J Biomech 39:1169-79. 2006
    ..The proposed method can be used to evaluate new designs in conditions more representative of the variability in clinical practice...
  16. ncbi Pre-clinical validation of a new partially cemented femoral prosthesis by synergetic use of numerical and experimental methods
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    J Biomech 34:723-31. 2001
    ..The experimental and numerical results showed the validity of the new fixation concept, although a further optimisation of the geometry of the cement pockets is needed in order to further reduce the stresses in the cement...
  17. ncbi New aspects and approaches in pre-operative planning of hip reconstruction: a computer simulation
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Langenbecks Arch Surg 389:400-4. 2004
    ..However, there is indirect evidence that simple anatomical information may not be sufficient for the surgeon to decide size and position of the implant in a repeatable manner...
  18. ncbi Large-sliding contact elements accurately predict levels of bone-implant micromotion relevant to osseointegration
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136, Bologna, Italy
    J Biomech 33:1611-8. 2000
    ..All the other models presented errors higher than 20 micrometer assumed in the present study as an accuracy threshold...
  19. ncbi Development of a software for the design of custom-made hip prostheses using an open-source rapid application development environment
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Med Inform Internet Med 25:183-93. 2000
    ..Other important determinants were found to be the adoption of an incremental software engineering strategy, well suited for small to medium projects and the presence in the development staff of a technology transfer expert...
  20. ncbi CT data sets surface extraction for biomechanical modeling of long bones
    M Viceconti
    Laboratorio di Tecnologia dei Materiali, Istituti Ortopedici Rizzoli, Bologna, Italy
    Comput Methods Programs Biomed 59:159-66. 1999
    ..From the results of this study, it may be concluded that three dimensional segmentation algorithms are useful not only in visualisation applications but also in the creation of geometry models...
  21. doi A tentative taxonomy for predictive models in relation to their falsifiability
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Philos Trans A Math Phys Eng Sci 369:4149-61. 2011
    ..For this category, which includes artificial neural networks, Bayesian models and integrative models, the definition of a generic falsification strategy requires further investigation by researchers and philosophers of science...
  22. ncbi Spatial positioning of an hip stem solid model within the CT data set of the host bone
    M Viceconti
    Laboratory for Biomaterials Technology, Istituti Ortopedici Rizzoli, Bologna, Italy
    Comput Methods Programs Biomed 58:219-26. 1999
    ..This methodology allows an accurate three-dimensional modelling of operated bone which have been implanted with high density metallic devices which produce relevant artefacts in post-operative CT images...
  23. ncbi HIDE: a new hybrid environment for the design of custom-made hip prosthesis
    M Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136, Bologna, Italy
    Comput Methods Programs Biomed 64:137-144. 2001
    ..These good results were achieved because of the integration of the vectorial description of the prosthetic component with the raster description of the CT data that allowed the designer to use all details available in the CT images...
  24. ncbi Multimod Data Manager: a tool for data fusion
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Comput Methods Programs Biomed 87:148-59. 2007
    ..While the Data Manager is clearly still only at the prototype stage, we believe that it is already capable of being used to solve a large number of problems common to many biomedical engineering activities...
  25. ncbi TRI2SOLID: an application of reverse engineering methods to the creation of CAD models of bone segments
    M Viceconti
    Laboratory for Biomaterials Technology, Istituti Ortopedici Rizzoli, Bologna, Italy
    Comput Methods Programs Biomed 56:211-20. 1998
    ..The proposed method was used to convert the CT scan data set of a human femur into a valid CAD model; the resulting solid was two times more accurate than that obtained using the commonly used procedure based on 2D segmentation...
  26. ncbi A comparative study on different methods of automatic mesh generation of human femurs
    M Viceconti
    Laboratory for Biomaterials Technology, Rizzoli Orthopaedic Institute, Bologna, Italy
    Med Eng Phys 20:1-10. 1998
    ....
  27. ncbi Policy needs and options for a common approach towards modelling and simulation of human physiology and diseases with a focus on the virtual physiological human
    Marco Viceconti
    Istituto Ortopedico Rizzoli, Bologna, Italy
    Stud Health Technol Inform 170:49-82. 2011
    ..Hence, the best way to achieve the dream of personalised, preventive, and participative medicine at sustainable costs will be through the integration of all available data, information and knowledge...
  28. ncbi Hip-Op: an innovative software to plan total hip replacement surgery
    Riccardo Lattanzi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Med Inform Internet Med 27:71-83. 2002
    ..After being evaluated in an internal clinical trial, the software is currently made available as freeware at http:// www.ior.it/hipop/...
  29. ncbi Can the rasp be used to predict intra-operatively the primary stability that can be achieved by press-fitting the stem in cementless hip arthroplasty?
    Elena Varini
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Clin Biomech (Bristol, Avon) 23:408-14. 2008
    ..Stem size, based on templating and pre-operative planning software, only partially avoids stem mis-sizing. Mis-sizing can produce implant instability and/or wasting the wrong-sized stem...
  30. ncbi Partially cemented AncaDualFit hip stems do not fail in simulated active patients
    Luca Cristofolini
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Clin Biomech (Bristol, Avon) 22:191-202. 2007
    ..Concerns recently arose concerning the long-term endurance of such implants in active patients. In fact, it was suspected that cyclic loads applied by demanding patients could lead to fixation failure...
  31. doi Structural behaviour and strain distribution of the long bones of the human lower limbs
    Luca Cristofolini
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    J Biomech 43:826-35. 2010
    ..To our knowledge, this study represents the most extensive collection of whole-bone biomechanical properties of lower limb bones...
  32. doi Assessment of femoral neck fracture risk for a novel proximal epiphyseal hip prosthesis
    Luca Cristofolini
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, Bologna, Italy
    Clin Biomech (Bristol, Avon) 26:585-91. 2011
    ..This study addresses the risk of femoral neck fracture associated with resurfacing hip prostheses. A novel cemented Proximal Epiphyseal Replacement (PER) featuring a short curved stem was investigated...
  33. ncbi The material mapping strategy influences the accuracy of CT-based finite element models of bones: an evaluation against experimental measurements
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Med Eng Phys 29:973-9. 2007
    ..3% and from 228% to 134% of the maximum measured strain, respectively. The stress fields predicted inside the bone were also significantly different. A new software implementing the second strategy was made available in the public domain...
  34. doi Combined wear behavior and long-term implant-bone fixation of total knee replacement: a novel in vitro set-up
    Michele Spinelli
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, Bologna, Italy
    Artif Organs 34:E177-83. 2010
    ..Similarity in wear tracks observed on tibial inserts and other retrieval studies, coupled with clinically consistent migration patterns for TKR, supports the efficacy of the new in vitro method presented...
  35. doi A new method of in vitro wear assessment of the UHMWPE tibial insert in total knee replacement
    Saverio Affatato
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Artif Organs 32:942-8. 2008
    ....
  36. ncbi Finite-element modeling of bones from CT data: sensitivity to geometry and material uncertainties
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna 40136, Italy
    IEEE Trans Biomed Eng 53:2194-200. 2006
    ..The presented method is hence robust enough to be used for investigating the mechanical behavior of bones with subject-specific finite-element models derived from CT data taken in vivo...
  37. ncbi Accuracy and repeatability of cementless total hip replacement surgery in patients with deformed anatomies
    Riccardo Lattanzi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Med Inform Internet Med 28:59-71. 2003
    ..For the socket the average differences increased to 8 mm and 10 degrees. The study shows the need for a more informative planning environment and for intra-operative supports, especially when deformed anatomies are involved...
  38. doi Multiscale investigation of the functional properties of the human femur
    Luca Cristofolini
    Istituto Ortopedico Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Philos Trans A Math Phys Eng Sci 366:3319-41. 2008
    ..More work is needed in the future to integrate all levels fully, while following a sound scientific method to assess the relevance and validity of such an integrated model...
  39. doi Effect of undersizing on the long-term stability of the Exeter hip stem: A comparative in vitro study
    Luca Cristofolini
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Clin Biomech (Bristol, Avon) 25:899-908. 2010
    ..The scope of this study was to investigate whether stem undersizing and a thin cement mantle are sufficient to cause implant loosening...
  40. doi Finite element modeling of resurfacing hip prosthesis: estimation of accuracy through experimental validation
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    J Biomech Eng 132:021002. 2010
    ..This validated model can support realistic simulations to examine physiological load configurations and the effects of variations in prosthesis design and implantation technique...
  41. ncbi An improved method for the automatic mapping of computed tomography numbers onto finite element models
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Med Eng Phys 26:61-9. 2004
    ..The convergence behaviour of the model was not worsened by the introduction of inhomogeneous material properties. The software was made available in the public domain...
  42. ncbi Thermomechanical analysis of ultra-high molecular weight polyethylene-metal hip prostheses
    M Rocchi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Proc Inst Mech Eng H 221:561-8. 2007
    ..The full coupling between the thermal and the mechanical conditions used in this study appears to be necessary if accurate predictions of the polyethylene deformation are required...
  43. ncbi Fracture properties of an acrylic bone cement
    E Bialoblocka-Juszczyk
    Medical Technology Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
    Acta Bioeng Biomech 10:21-6. 2008
    ..The K(IC) mean value was 1.38 MPa x m1/2. These experimental results provide the set of necessary inputs for numerical studies aimed to investigate the damage accumulation process in the mantle fixing cemented prostheses...
  44. doi Effect of sub-optimal neuromotor control on the hip joint load during level walking
    Saulo Martelli
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy
    J Biomech 44:1716-21. 2011
    ..However we can consider the possibility that sub-optimal activations of the muscular system play a role in spontaneous fractures not associated with falls...
  45. doi Multiscale modelling of the skeleton for the prediction of the risk of fracture
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, Bologna, Italy
    Clin Biomech (Bristol, Avon) 23:845-52. 2008
    ....
  46. doi Dependence of trabecular structure on bone quantity: a comparison between osteoarthritic and non-pathological bone
    Simone Tassani
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, Bologna, Italy
    Clin Biomech (Bristol, Avon) 26:632-9. 2011
    ..The secondary aim was to compare osteoarthritic and non-pathological bone considering the correlation between structure and bone volume fraction...
  47. doi The Virtual Physiological Human - a European initiative for in silico human modelling -
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Italy
    J Physiol Sci 58:441-6. 2008
    ..It then uses one particular project, the Living Human Project, to illustrate the type of advances that are taking place to further the aims of the VPH and similar initiatives worldwide...
  48. ncbi JIDE: a new software for computer-aided design of hip prosthesis
    Debora Testi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Comput Methods Programs Biomed 75:213-20. 2004
    ..The resulting system is thus directed to prostheses manufacturers and addresses a market segment that appears to have a steady growth in the future...
  49. ncbi The multimod application framework: a rapid application development tool for computer aided medicine
    Marco Viceconti
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Comput Methods Programs Biomed 85:138-51. 2007
    ..The Framework is based on a collection of portable libraries and it can be compiled on any platform that supports OpenGL, including Windows, MacOS X and any flavor of Unix/linux...
  50. ncbi Mechanical strength of a femoral reconstruction in paediatric oncology: a finite element study
    F Taddei
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano 1 1, 40136 Bologna, Italy
    Proc Inst Mech Eng H 217:111-9. 2003
    ..The model predictions found an indirect clinical validation when the child was allowed to perform short unprotected walks and did not experience any fracture...
  51. doi The human proximal femur behaves linearly elastic up to failure under physiological loading conditions
    Mateusz Maria Juszczyk
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy
    J Biomech 44:2259-66. 2011
    ..Such a difference was comparable to the fluctuations observed between different parts of the curve. Therefore, it can be concluded that the proximal femur has a linear-elastic behavior up to fracture, for physiological strain-rates...
  52. doi The effects of embalming using a 4% formalin solution on the compressive mechanical properties of human cortical bone
    Caroline Ohman
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Clin Biomech (Bristol, Avon) 23:1294-8. 2008
    ..This study aimed to determine the short- and long-term effects of embalming, using a solution with 4% formalin concentration, on the mechanical properties of human cortical bone...
  53. ncbi Efficacy of stereoscopic visualization and six degrees of freedom interaction in preoperative planning of total hip replacement
    Debora Testi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Med Inform Internet Med 31:205-18. 2006
    ..This study has demonstrated that the application of VR environment for pre-operative planning of total hip replacement may help to shorten the duration of the positioning and to yield consistent results even with first-time users...
  54. doi Reduced tissue hardness of trabecular bone is associated with severe osteoarthritis
    Enrico Dall'ara
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy
    J Biomech 44:1593-8. 2011
    ..A similar conclusion can be drawn for age, although a larger donor sample size would be necessary to definitively exclude the existence of a slight effect...
  55. doi Volume to density relation in adult human bone tissue
    Simone Tassani
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Via di Barbiano, 1 10, 40136 Bologna, Italy
    J Biomech 44:103-8. 2011
    ..Consequently, it is suggested that TMD can be managed as a constant in computational models, varying only BV in relation to clinical densitometric analysis...
  56. doi Anisotropy and inhomogeneity of the trabecular structure can describe the mechanical strength of osteoarthritic cancellous bone
    Simone Tassani
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136, Bologna, Italy
    J Biomech 43:1160-6. 2010
    ..The proposed approach of considering both tissue anisotropy and inhomogeneity improved the accuracy in predicting the mechanical behaviour of cancellous bone tissue and should be suitable for more general loading conditions...
  57. ncbi In vitro long-term fatigue endurance of the secondary "Cement Injection Stem" hip prosthesis
    Luca Cristofolini
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Artif Organs 31:441-51. 2007
    ..The few cement cracks found were mainly localized in proximity of a proximal drainage hole. It is foreseen that when this detail is optimized, long-term endurance will further improve...
  58. ncbi Specialised CT scan protocols for 3-D pre-operative planning of total hip replacement
    Riccardo Lattanzi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Med Eng Phys 26:237-45. 2004
    ..The effective dose is comparable to that of a standard pelvic CT exam. Adjusting the axial CT scan parameters the effective dose can be reduced, however lowering the accuracy of 3-D bone geometry reconstruction...
  59. doi Femoral loads during gait in a patient with massive skeletal reconstruction
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, Bologna, Italy
    Clin Biomech (Bristol, Avon) 27:273-80. 2012
    ....
  60. doi Repeatable procedure for evaluating taper damage on femoral stems with modular necks
    Melinda K Harman
    Medical Technology Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
    J Biomed Mater Res B Appl Biomater 99:431-9. 2011
    ..Modular necks tested with higher load magnitudes and those coupled with larger, stiffer femoral stems were readily distinguished and showed significantly larger areas of burnished smooth and textured damage...
  61. doi Comparison of three standard anatomical reference frames for the tibia-fibula complex
    Giorgia Conti
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    J Biomech 41:3384-9. 2008
    ..is preferable when the full bone surface is accessible (typically during in vitro tests). Conversely, no advantage in terms of repeatability seems to exist between the reference frames proposed by Cappozzo et al. and ISB...
  62. doi A pictographic atlas for classifying damage modes on polyethylene bearings
    Melinda Harman
    Medical Technology Lab, Rizzoli Orthopaedic Institute, Via Di Barbiano 1 10, 40136, Bologna, Italy
    J Mater Sci Mater Med 22:1137-46. 2011
    ....
  63. ncbi Subject-specific finite element models implementing a maximum principal strain criterion are able to estimate failure risk and fracture location on human femurs tested in vitro
    Enrico Schileo
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    J Biomech 41:356-67. 2008
    ..A maximum principal strain criterion can thus be defined a suitable candidate for the in vivo risk factor assessment on long bones...
  64. doi Compressive behaviour of child and adult cortical bone
    Caroline Ohman
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy
    Bone 49:769-76. 2011
    ..In fact, ash density was found to be a good predictor of strength and stiffness, also for cortical bone collected from children. Finally, the present findings support the hypothesis that compressive yield strain is an invariant...
  65. ncbi Mechanical testing of cancellous bone from the femoral head: experimental errors due to off-axis measurements
    Caroline Ohman
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    J Biomech 40:2426-33. 2007
    ..This angle should be reduced as much as possible (in the present work the average value was 6.6+/-3.3 degrees), in any case measured, and always reported together with the mechanical parameters of cancellous bone...
  66. ncbi Validation of two algorithms to evaluate the interface between bone and orthopaedic implants
    Debora Testi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Comput Methods Programs Biomed 74:143-50. 2004
    ..Moreover, the in vivo testing demonstrated that the developed methods provide reasonable quantitative indicators of the stem positioning in the femoral CT dataset...
  67. ncbi Virtual palpation of skeletal landmarks with multimodal display interfaces
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Med Inform Internet Med 32:191-8. 2007
    ..Thus, we can conclude that skeletal virtual palpation can be performed directly on the CT dataset, as far as the virtual palpation is performed with a multimodal display interface...
  68. doi Evaluation of the generality and accuracy of a new mesh morphing procedure for the human femur
    Lorenzo Grassi
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Med Eng Phys 33:112-20. 2011
    ..The proposed method is general, robust, automated, and accurate enough to be used in bone FE modelling from diagnostic data, and prospectively in applications such as statistical shape modelling...
  69. ncbi Dependence of mechanical compressive strength on local variations in microarchitecture in cancellous bone of proximal human femur
    E Perilli
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    J Biomech 41:438-46. 2008
    ..These regions mostly contain minimum values in BV/TV, which were found to predict ultimate stress better than average BV/TV...
  70. ncbi The muscle standardized femur: a step forward in the replication of numerical studies in biomechanics
    M Viceconti
    Laboratorio di Tecnologia Medica, Instituti Ortopedici Rizzoli, Via di Barhiano 1 10, 40136 Bologna, Italy
    Proc Inst Mech Eng H 217:105-10. 2003
    ....
  71. ncbi Effect of stem preheating on the fatigue behaviour of bone cement around hip prostheses
    E Bialoblocka-Juszczyk
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via di Barbiano, 1 10, Bologna, BO, 40136, Italy
    Proc Inst Mech Eng H 223:637-41. 2009
    ..However, above this number of cycles, stem preheating seems to reduce the probability of failure. These findings are discussed in the text...
  72. ncbi Integrated friction measurements in hip wear simulations: short-term results
    M Spinelli
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy
    Proc Inst Mech Eng H 224:865-76. 2010
    ..This innovative set-up was able to reproduce stable and reliable measurements. The results obtained encourage further investigations of this set-up for long-term assessment and using different combinations of materials...
  73. doi An accurate estimation of bone density improves the accuracy of subject-specific finite element models
    Enrico Schileo
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    J Biomech 41:2483-91. 2008
    ....
  74. doi Effect of a virtual reality interface on the learning curve and on the accuracy of a surgical planner for total hip replacement
    Luca Petrolo
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Comput Methods Programs Biomed 97:86-91. 2010
    ..The results showed that the examined VR technology does not show a sufficient positioning accuracy to be considered for clinical assessment...
  75. doi Osteon classification in human fibular shaft by circularly polarized light
    Alina Beraudi
    Istituti Ortopedici Rizzoli, Bologna, Italy
    Cells Tissues Organs 191:260-8. 2010
    ..This observation seems to confirm that along the fibula shaft the orientation of collagen fibers within the osteons is consistent with the loading conditions which the bone undergoes...
  76. doi Investigation on wear of knee prostheses under fixed kinematic conditions
    Saverio Affatato
    Laboratorio di Tecnologia Medica, Instituti Ortopedici Rizzoli, Bologna, Italy
    Artif Organs 32:13-8. 2008
    ..This study demonstrated a good repeatability among the stations of the knee simulator obtaining weight loss values congruent with those found by other authors using similar test conditions...
  77. ncbi In vitro replication of spontaneous fractures of the proximal human femur
    Luca Cristofolini
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    J Biomech 40:2837-45. 2007
    ..Failure load should be reported as a fraction of donor's body-weight to reduce variability. The proposed method can be used to investigate the reason and mechanism of failure of natural and operated proximal femurs...
  78. ncbi Predicting the subject-specific primary stability of cementless implants during pre-operative planning: preliminary validation of subject-specific finite-element models
    B Reggiani
    DIEM Dipartimento di Ingegneria delle Costruzioni Meccaniche, Nucleari, Aeronautiche e di Metallurgia, Universita degli Studi di Bologna, Viale Risorgimento 2, 40136, Bologna, Italy
    J Biomech 40:2552-8. 2007
    ..Hence, the present study confirms that it is possible to accurately predict the level of primary stability achieved for cementless stems using numerical models that account for patient specificity and surgical variability...
  79. ncbi Effect of long-term physiological activity on the long-term stem stability of cemented hip arthroplasty: in vitro comparison of three commercial bone cements
    E Bialoblocka-Juszczyk
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy
    Proc Inst Mech Eng H 224:53-65. 2010
    ..New cements can be assessed in comparison with other cements with known (positive/negative) clinical outcome, tested with the same protocol...
  80. ncbi Prediction of hip fracture can be significantly improved by a single biomedical indicator
    Debora Testi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Ann Biomed Eng 30:801-7. 2002
    ..This research demonstrated that adding one single biomechanical indicator to the standard clinical measurements improves the identification of patients at-risk of femoral neck fracture...
  81. ncbi Subject-specific finite element models of long bones: An in vitro evaluation of the overall accuracy
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Italy
    J Biomech 39:2457-67. 2006
    ..6%, peak error=35%). The results showed that it is possible to automatically generate accurate finite element models of bones from CT data and that the strategy of material properties mapping has a significant influence on its accuracy...
  82. doi Implant fixation in knee replacement: preliminary in vitro comparison of ceramic and metal cemented femoral components
    Luca Cristofolini
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy Engineering Faculty, University of Bologna, Italy
    Knee 16:101-8. 2009
    ..Although this study had a limited sample size, it provides novel pre-clinical indications about the potential of ceramic TKR femoral components...
  83. doi Polyethylene damage and deformation on fixed-bearing, non-conforming unicondylar knee replacements corresponding to progressive changes in alignment and fixation
    Melinda K Harman
    Medical Technology Lab, Rizzoli Orthopaedic Institute, Via Di Barbiano 1 10, Bologna, Italy
    Clin Biomech (Bristol, Avon) 25:570-5. 2010
    ....
  84. ncbi Growth and remodelling of the autologous bone transplant used in a pediatric femoral reconstruction
    F Taddei
    Laboratorio di Technologia Medica, Institut Ortopedici Rizzoli, Bologna, Italy
    Proc Inst Mech Eng H 216:95-104. 2002
    ..The cantilever beam model suggested that, although the autograft is currently subjected to subcritical stresses. morphological evolution could increase the risk of fracture in the next few years if a normal level of loading were allowed...
  85. ncbi Stress shielding and stress concentration of contemporary epiphyseal hip prostheses
    L Cristofolini
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy
    Proc Inst Mech Eng H 223:27-44. 2009
    ..Conversely, alterations were moderate where the strain was higher. Thus, prosthesis-to-bone load transfer of both devices has been elucidated; the prototype preserved a stress distribution closer to the physiological condition...
  86. ncbi A new software for prediction of femoral neck fractures
    Debora Testi
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Comput Methods Programs Biomed 75:141-5. 2004
    ..The result was efficient, repeatable and easy to use software for the evaluation of the femoral neck fracture risk to be inserted in the daily clinical practice providing a useful tool for the improvement of fracture prediction...
  87. doi Mechanical testing of bones: the positive synergy of finite-element models and in vitro experiments
    Luca Cristofolini
    Facolta di Ingegneria, Universita di Bologna, Italy
    Philos Trans A Math Phys Eng Sci 368:2725-63. 2010
    ....
  88. ncbi Comparative study of different tendon grasping techniques for arthroscopic repair of the rotator cuff
    Massimiliano Baleani
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, Bologna 40136, Italy
    Clin Biomech (Bristol, Avon) 21:799-803. 2006
    ..The aims of this study were to investigate the initial strength and failure mode of different tendon grasping techniques and to evaluate an alternative stitch proposed for arthroscopic repair of rotator cuff tendons...
  89. ncbi Mechanical effects of the use of vancomycin and meropenem in acrylic bone cement
    Cecilia Persson
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli Bologna, IT 401 36 Italy
    Acta Orthop 77:617-21. 2006
    ..The antibiotics added to bone cements may, however, have detrimental effects on the mechanical properties of the cement...
  90. pmc Tibia adaptation after fibula harvesting: an in vivo quantitative study
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Via di Barbiano, 1 10, 40136, Bologna, Italy
    Clin Orthop Relat Res 467:2149-58. 2009
    ....
  91. ncbi Relationship between biometric characteristics and stem size of uncemented hip prostheses
    Manuela De Clerico
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli Bologna, Italy
    Artif Organs 31:480-3. 2007
    ..7). Multifactorial analysis demonstrated that stem size was influenced by sex, age, and height, but not by weight. Besides this, there was an interaction between sex and age: in women, but not in men, the stem size increased with aging...
  92. doi A new meshless approach for subject-specific strain prediction in long bones: Evaluation of accuracy
    Fulvia Taddei
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via di Barbiano, 1 10, 40136 Bologna, Italy
    Clin Biomech (Bristol, Avon) 23:1192-9. 2008
    ..Meshless methods, which do not rely on a pre-defined topological discretisation of the domain, might greatly improve the numerical process automation, but currently their application to biomechanics is negligible...
  93. ncbi Personal Digital Assistant in an orthopaedic wireless ward: the HandHealth project
    Simone Tassani
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Comput Methods Programs Biomed 86:21-9. 2007
    ..Medical images can be showed on the device display, but also transferred to a high-resolution monitor. Large amount of data can be dictated and translated by remote continuous speech recognition...
  94. doi Is laterality associated with a higher rate of hip arthroplasty on the dominant side?
    Susanna Stea
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Bologna, Italy
    Artif Organs 32:73-7. 2008
    ..8%) in comparison to the left one (23.2%) in the left-footed patients. The authors suggested that, in left-footed patients, the right side was subjected to greater stress...
  95. doi Re-use of explanted osteosynthesis devices: a reliable and inexpensive reprocessing protocol
    Valentina Danesi
    Medical Technology Lab, Rizzoli Orthopaedic Institute, Bologna, Italy
    Injury 42:1101-6. 2011
    ..The purpose of this study is to report a reprocessing protocol applied to explanted osteosynthesis devices obtained at a leading trauma care hospital...
  96. ncbi Subject-specific finite element models can accurately predict strain levels in long bones
    Enrico Schileo
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    J Biomech 40:2982-9. 2007
    ..The presented results show, in addition, that the adoption of a single density-elasticity relationship over the whole bone density range is adequate to obtain an accuracy that is already suitable for many applications...
  97. ncbi Risk of fracture in elderly patients: a new predictive index based on bone mineral density and finite element analysis
    D Testi
    Laboratorio Tecnologia dei Materiali, Istituti Ortopedici Rizzoli, Bologna, Italy
    Comput Methods Programs Biomed 60:23-33. 1999
    ..All simulations show a peak strain at the femoral neck region with a strain distribution typical of a fall on the side. The proposed method seems to supply a useful tool for the in vivo analysis of the risk of hip fracture...
  98. ncbi A procedure and criterion for bone cement fracture toughness tests
    L Guandalini
    Laboratorio di Tecnologia Medica, Istituti Ortopedici Rizzoli, Via Di Barbiano 1 10, 40136 Bologna, Italy
    Proc Inst Mech Eng H 218:445-50. 2004
    ..Since it is possible to mould specimens without macroporosity, it seems recommendable to reject specimens with macroporosity on the fracture surface before calculating the KIc value of bone cement...
  99. doi Wear behaviour in total ankle replacement: a comparison between an in vitro simulation and retrieved prostheses
    S Affatato
    Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy
    Clin Biomech (Bristol, Avon) 24:661-9. 2009
    ..The in vitro wear of meniscal components can be assessed using a four-station joint simulator. The study was aimed at comparing wear patterns obtained in vitro with those observed in implant retrievals with the same design...
  100. ncbi Comparison of logistic and Bayesian classifiers for evaluating the risk of femoral neck fracture in osteoporotic patients
    D Testi
    DEIS, University of Bologna, Italy
    Med Biol Eng Comput 39:633-7. 2001
    ..The study demonstrates that the Bayes linear classifier can be a valid alternative to multiple logistic regression in the classification of osteoporotic patients...
  101. ncbi A new method for the automatic mesh generation of bone segments from CT data
    M Viceconti
    Laboratorio di Tecnologia dei Materiali, Istituti Ortopedici Rizzoli, Bologna, Italy
    J Med Eng Technol 23:77-81. 1999
    ..Once properly integrated in an easy-to-use application, the described method could finally make feasible many clinical applications of finite element analysis...