Biomedical Engineering Reference
In-Depth Information
11.5 lImItatIonS and Future reSearCh
In this chapter, we constructed one intact pelvic FE model and two postsurgical models, and used
them to analyze hemipelvic reconstructive surgeries with an autografted distal femur and proximal
tibia. Though we did CT scans of two reconstructed in vitro samples, as described in Section 11.5,
we still modeled the intact and reconstructed pelvises from another cadaveric sample. The isogenic
models were helpful for comparison with each other, because no individual variation needed to be
considered in the analysis.
However, there were also some limitations in this study. To compare the FE computation and
cadaveric experiment, only bone and joint structures were considered in the modeling. The liga-
ments and other soft tissues would influence the biomechanical properties and postsurgical outcome.
How influential these tissues would be should be considered in clinical applications of this research.
Additionally, only a sitting posture was analyzed in this study. Further clinical work should consider
how to assemble an artificial limb on the reconstructed hemipelvis. It also raises another challenge
for the biomechanical evaluation of the reconstructed structure, which has to support the upper
body in more complicated conditions.
Of course, the FE model of the intact pelvis can also be used in many other fields to study injury
protection, clinical operations, and implants. The model can also be changed or expanded to solve
more biomechanically related questions in fields such as urology, obstetrics, gynecology, and the
anorectal system. Further applications of the pelvic FE model must be combined with clinical prac-
tice and in vivo or in vitro experiments.
aCknowledgmentS
This study was supported by the Opening Project of the Shanghai Key Laboratory of
Orthopaedic Implants (No. KFKT2013002) and the China Postdoctoral Science Foundation
( No. 2013M 530211).
reFerenCeS
Bodzay T., I. Flóris, and K. Váradi. 2011. Comparison of stability in the operative treatment of pelvic injuries
in a finite element model.
Archives of Orthopaedic and Trauma Surgery
131: 1427-33.
Böhme J., V. Shim, A. Höch, M. Mütze, C. Müller, and C. Josten. 2012. Clinical implementation of finite
element models in pelvic ring surgery for prediction of implant behavior: A case report.
Clinical
Biomechanics
27: 872-8.
Bramer J. A., and A. H. Taminiau. 2005. Reconstruction of the pelvic ring with an autograft after hind-
quarter amputation: Improvement of sitting stability and prosthesis support.
Acta Orthopaedica
76:
453-4.
Bréaud J., P. Baqué, J. Loeffler, F. Colomb, C. Brunet, and L. Thollon. 2012. Posterior urethral injuries associ-
ated with pelvic injuries in young adults: computerized finite element model creation and application to
improve knowledge and prevention.
Surgical and Radiologic Anatomy
34: 333-9.
Campanacci D., S. Chacon, N. Mondanelli et al. 2012. Pelvic massive allograft reconstruction after bone
tumour resection.
International Orthopaedics
36: 2529-36.
Cheng L., Y. Yu, R. Zhu et al. 2011. Structural stability of different reconstruction techniques following total
sacrectomy: a biomechanical study.
Clinical Biomechanics
26: 977-81.
Cheung, J. T., M. Zhang, A. K. Leung, and Y. B. Fan. 2005. Three-dimensional finite element analysis of the
foot during standing a material sensitivity study.
Journal of Biomechanics
38: 1045-54.
Eichenseer P. H., D. R. Sybert, and J. R. Cotton. 2011. A finite element analysis of sacroiliac joint ligaments in
response to different loading conditions.
Spine
36: E1446-52.
Enneking W. F., and W. K. Dunham. 1978. Resection and reconstruction for primary neoplasms involving the
innominate bone.
The Journal of Bone and Joint Surgery. American Volume
60: 731-46.
Gao Y. S., J. Mei, C. Q. Zhang, M. Ni, X. H. Wang, and B. Dou. 2011. To reconstruct the hemipelvis and
acetabulum with homolateral proximal femur: a feasible way for hip reconstruction after tumorectomy
involving the acetabulum.
European Journal of Orthopaedic Surgery and Traumatology
21: 145-9.
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