Publications
158 results found
Geraldes D, Phillips ATM, 2009, Development of a Continuum and Free Boundary Condition Model of the Pelvis for Acetabular Fracture Prediction, XXII Congress of the International Society of Biomechanics
Geraldes DM, Phillips ATM, 2009, Development of a continuum and free boundary condition model of the pelvis for acetabular fracture pattern prediction., ISB 2009 (International Society of Biomechanics)
Phillips ATM, 2009, The femur as a musculo-skeletal construct: a free boundary condition modelling approach, Medical Engineering & Physics
Whatling GM, Phillips ATM, Madete J, et al., 2008, Biomechanical outcomes of total hip arthropalsty, 3DMA 10th International Symposium 3D Analysis of Human Movement
Phillips ATM, Younge AM, 2008, A Novel Experimental Method Investigating the Effect of Muscle Loading on Femoral Strain Distribution, Bioengineering08
Clarke SG, Phillips ATM, 2008, The Influence of Geometry on Stresses and Deformations in the Acetabulum, Bioengineering08
Clarke SG, Phillips ATM, 2008, Statistical Analysis of Pelvic Geometry, British Orthopaedic Research Society
Phillips ATM, 2008, Physiological Free Boundary Condition Musculo-Skeletal Modelling of the Pelvis and Femur, British Orthopaedic Research Society
Clarke SG, Phillips ATM, 2008, Statistical analysis of pelvic geometry; and assessment of numerical modelling assumptions, Computer Methods in Biomechanics and Biomedical Engineering
Phillips ATM, Younge AM, 2008, Free boundary condition modelling of the femur as a complete musculo-skeletal construct, Computer Methods in Biomechanics and Biomedical Engineering
Phillips ATM, Pankaj P, Howie CR, et al., 2007, Finite element modelling of the pelvis: Inclusion of muscular and ligamentous boundary conditions, MEDICAL ENGINEERING & PHYSICS, Vol: 29, Pages: 739-748, ISSN: 1350-4533
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- Citations: 176
Phillips ATM, Howie CR, Pankaj P, 2007, Free boundary condition modelling of the musculo-skeletal pelvis: assessment of anterolateral and posterolateral approaches, European Society of Biomechanics Workshop
Phillips ATM, Howie CR, Pankaj P, 2007, Biomechanical evaluation of anterolateral and posterolateral approaches to hip joint arthroplasty, British Hip Society
Pankaj P, Phillips ATM, Beeson F, et al., 2007, Virtual samples of trabecular bone, 53rd Annual Meeting of the Orthopaedic Research Society
Phillips ATM, Pankaj P, Howie CR, et al., 2007, Explicit inclusion of muscles and ligaments in a numerical pelvis model, 53rd Annual Meeting of the Orthopaedic Research Society
Pankaj P, Phillips ATM, Simpson A, et al., 2007, Constitutive modelling of morsellised cortico-cancellous bone used in impaction grafting procedures, 53rd Annual Meeting of the Orthopaedic Research Society
Phillips ATM, 2006, Finite element modelling of the pelvis: accidental assumptions, Meditech - Medicine and Life Sciences: a Computational Approach
Phillips ATM, Pankaj P, Howie CR, et al., 2006, 3D non-linear analysis of the acetabular construct following impaction grafting., Comput Methods Biomech Biomed Engin, Vol: 9, Pages: 125-133, ISSN: 1025-5842
The study investigates the short-term behaviour of the acetabular construct following revision hip arthroplasty, carried out using the Slooff-Ling impaction grafting technique; using 3D finite element analyses. An elasto-plastic material model is used to describe the constitutive behaviour of morsellised cortico-cancellous bone (MCB) graft, since it has been shown that MCB undergoes significant plastic deformation under normal physiological loads. Based on previous experimental studies carried out by the authors and others, MCB is modelled using non-linear elasticity and Drucker Prager Cap (DPC) plasticity. Loading associated with walking, sitting down, and standing up is applied to the acetabular cup through a femoral head using smooth sliding surfaces. The analyses yield distinctive patterns of migration and rotation due to different activities. These are found to be similar to those observed in the clinical setting.
Phillips A, Pankaj P, May F, et al., 2006, Constitutive models for impacted morsellised cortico-cancellous bone, BIOMATERIALS, Vol: 27, Pages: 2162-2170, ISSN: 0142-9612
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- Citations: 23
Phillips ATM, Pankaj P, Howie CR, et al., 2006, The beneficial effect of muscle action on stress distribution in the pelvis, British Orthopaedic Research Society
Pankaj P, Beeson FA, Perrone C, et al., 2006, Generation of virtual models of bone micro-architecture, British Orthopaedic Research Society
Pankaj P, Phillips ATM, Howie CR, et al., 2006, Quantifying the behaviour of morsellised cortico-cancellous bone, British Orthopaedic Research Society
McLean AJ, Phillips ATM, McGeough JA, et al., 2006, Finite element modelling of revision total knee replacements: analysis of modular stem length and the effect on initial cancellous bone stresses, Computer Methods in Biomechanics and Biomedical Engineering
Phillips ATM, Pankaj P, Usmani AS, et al., 2006, Inclusion of muscular and ligamentous boundary conditions in a numerical model of the pelvis, SICOT/SIROT
Phillips ATM, Pankaj P, Howie CR, et al., 2006, 3D non-linear analysis of the hemi pelvis and acetabular construct, Computer Methods in Biomechanics and Biomedical Engineering
Pankaj P, Perrone C, Beeson FA, et al., 2006, Virtual modelling of normal and osteoporotic bone, Computer Methods in Biomechanics and Biomedical Engineering
Phillips ATM, Pankaj P, Howie CR, et al., 2006, Inclusion of muscles and ligaments in a numerical pelvis model, Computer Methods in Biomechanics and Biomedical Engineering
Phillips AT, Pankaj, Brown DT, et al., 2006, The elastic properties of morsellised cortico-cancellous bone graft are dependent on its prior loading., J Biomech, Vol: 39, Pages: 1517-1526, ISSN: 0021-9290
Confined compression experiments were carried out on cortico-cancellous bone taken from bovine femoral condyles to assess the effect of prior loading on the elastic confined modulus, E(c) of morsellised cortico-cancellous bone (MCB). Measurements were taken to find the values of E(c) for MCB subjected to cyclic loading resulting in axial stresses in the range of 0.5-3.0 N mm(2). Two values of E(c) were considered: E(ic), the instantaneous modulus, and E(dc), the delayed modulus allowing for stress relaxation effects. It was found that the values of E(c) increased with increasing maximum axial stress. It was also found that for each stress level the values of E(c) increased as the number of load cycles increased. The dependence of E(c) on the maximum axial stress and the number of load cycles is seen to explain the wide range of values for the apparent modulus of MCB found in previous studies. Tests examining the stress relaxation behaviour of MCB are also discussed. The results indicate that a minimum of 10 compaction episodes are required for MCB to achieve around 90% of its predicted maximum stiffness for a given compaction force.
Phillips ATM, Pankaj P, Howie CR, et al., 2006, Migration of the acetabular cup following impaction grafting, British Orthopaedic Research Society
Pankaj P, Phillips ATM, Taylor KW, et al., 2006, Constitutive modelling of morsellised cortico-cancellous bone, Computer Methods in Biomechanics and Biomedical Engineering
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