Effects of Stem Malalignment in Cementless Hip Arthroplasty: a Computational Study

 
 
 
  • Abstract
  • Keywords
  • References
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  • Abstract


    Implant loosening and deformation issues contribute to the instability of the hip arthroplasty. Prosthesis stem malalignment can occur in varus, anteversion and retroversion in different degrees due to several reasons. In this study, computational analysis of cementless hip arthroplasty with different stem malalignment cases was conducted to investigate the biomechanical effects in hip arthroplasty. Five hip arthroplasty models were developed using finite element analysis which are straight/aligned model, malalignment models at varus +3°, varus -3°, sagittal flexed +3°, and sagittal extended -3°. Results show that different pattern of stress distribution was observed in each malalignment case. The varus -3° malalignment model had demonstrated the greatest risk of failure based on the resulting stress distribution and total deformation.

     

      

  • Keywords


    Total hip arthroplasty; Femoral stem malalignment; Stress distribution; Displacement; Finite element analysis

  • References


      [1] K. O'Shea, S. R. Kearns, A. Blaney, P. Murray, H. A. Smyth, and J. P. McElwain, “Case Report Periprosthetic Malignancy as a Mode of Failure in Total Hip Arthroplasty,” J. Arthroplasty, vol. 21, no. 6, pp. 926–930, 2006.

      [2] J. L. Conroy, S. L. Whitehouse, S. E. Graves, N. L. Pratt, P. Ryan, and R. W. Crawford, “Risk Factors for Revision for Early Dislocation in Total Hip Arthroplasty,” J. Arthroplasty, vol. 23, no. 6, pp. 867-872, 2008.

      [3] E. T. Habermann and P. A. Feinstein, “Total Hip Replacement Arthroplasty in Arthritic Conditions of the Hip Joint,” Semin Arthritis Rheum, vol. 7, no. 3, pp. 189-231, 1978.

      [4] R. G. Gosthe, J. C. Suarez, C. A. Mcnamara, C. Calvo, and P. D. Patel, “Fluoroscopically Guided Acetabular Component Positioning : Does It Reduce the Risk of Malpositioning in Obese Patients ?,” J. Arthroplasty, vol. 32, no. 10, pp. 3052–3055, 2017.

      [5] S. J. M. Parker, G. Grammatopoulos, O. L. I. Davies, K. Lynch, T. C. B. Pollard, and A. J. Andrade, “Outcomes of Hip Arthroplasty After Failed Hip Arthroscopy : A Case-Control Study,” vol. 32, 2017.

      [6] K. Miyatake, T. Jinno, D. Koga, and Y. Yamauchi, “Comparison of Different Materials and Proximal Coatings Used for Femoral Components in One-Stage Bilateral Total Hip Arthroplasty,” J. Arthroplasty, vol. 30, no. 12, pp. 2237–2241, 2015.

      [7] L. Profemur, “Total Hip System : Classic and Modular Stems.”

      [8] H. Abe, T. Sakai, M. Takao, T. Nishii, N. Nakamura, and N. Sugano, “Difference in Stem Alignment Between the Direct Anterior Approach and the Posterolateral Approach in Total Hip Arthroplasty,” J. Arthroplasty, vol. 30, no. 10, pp. 1761–1766, 2015.

      [9] S. H. Marwan, G. Tardan, M. S. Zainal, and A. H. Abdullah, "Effects of Stem Mal-alignment in The Primary Stability of Total Hip Arthroplasty," J. Mech. Eng., vol. 4 (4), pp. 79-91, 2017.

      [10] A. H. Abdullah, M. Todo, and Y. Nakashima, “Prediction of damage formation in hip arthroplasties by finite element analysis using computed tomography images,” Med. Eng. Phys., vol. 44, pp. 8–15, 2017.

      [11] E. Saputra, I. Budiwan, J. Jamari, and E. Van Der Heide, “Finite Element Analysis of Artificial Hip Joint Movement during Human Activities,” Procedia Eng., vol. 68, pp. 102–108, 2013.

      [12] G. Bergmann, G. Deuretzbacher, M. Heller, F. Graichen, and A. Rohlmann, “Hip contact forces and gait patterns from routine activities,” vol. 34, pp. 859–871, 2001.


 

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Article ID: 22501
 
DOI: 10.14419/ijet.v7i4.27.22501




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