Abstract
This paper presents a non-uniform, periodic closed B-spline approximation algorithm for the fabrication of a medical pelvic model, based on rapid prototyping, and also gives the finite element evaluation of the pelvic model. Rapid prototyping (RP), when used in fabricating medical prosthesis, has a strict requirement for closeness and impermeability of STL files. Incorrect data structure in STL files will cause the subsequent slicing process not to proceed. The non-uniform periodic closed B-spline curve approximation method was applied to processing CT data. The precision and size of STL files was improved to optimize the RP model of the pelvis. Finally, the model of the pelvis was evaluated with the finite element method. Results suggest that a high similarity has been achieved in terms of shape, size and biomechanical properties of the pelvic model and the normal one, which validates our argument that rapid prototyping with non-uniform, periodic closed B-spline algorithm is suitable for the fabrication of a pelvic model, which will prove to be significant in the design of pelvic prostheses .
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References
Wirbel RJ, Schulte M, Maier B, Mutschler WE (1999) Megaprosthetic replacement of the pelvis: function in 17 cases. Acta Orthop Scand 70(4):348–352
Bruns J, Luessenhop SL, Dahmen G Sr (1997) Internal hemipelvectomy and endoprosthetic pelvic replacement: long-term follow-up results. Arch Orthop Trauma Surg 116(1–2):27–31
Burri C, Etter C (1985) Partial and complete pelvic replacement in tumor patients. Acta Orthop Belg 51(2–3):212–219
Berry E, Brown JM, Connell M, et al. (1997) Preliminary experience with medical applications of rapid prototyping by selective laser sintering. Med Eng Phys 19(1):90–96
Colin A, Boire JY (1997) A novel tool for rapid prototyping and development of simple 3D medical image processing applications on PCs. Comput Methods Prog Biomed 53(2):87–92
Yan X, Gu P (1996) A review of rapid prototyping technologies and systems. Comput-Aided Des 28(4):307–318
Fischer A (2000) Multi-level models for reverse engineering and rapid prototyping in remote CAD systems. Comput-Aided Des 32:27–38
Chiu WK, Tan ST (2000) Multiple material objects: from CAD representation to data format for rapid prototyping. Comput-Aided Des 32(12):707–717
Szilvi-Nagy, Gy M (2003) Analysis of STL files. Math Comput Model 38:945–960
Park H, Kim K (1996) Smooth surface approximation to serial cross-sections. Comput-Aided Des 28(12):995–1005
Chung KL, Yan WM (1994) A fast algorithm for cubic B-spline curve fitting, Comput Graph 18(3):327–334
Piegl L, Tiller W (1995) Algorithm for degree reduction of B-spline curves. Comput Aided Des 27(2):101–110
Wang YJ, Wang JL (1989) Orthopaedic biomechanics. People’s Military Medical Publisher, Beijing
Dawson JM, Khmelniker BV, McAndrew MP (1998) Analysis of the structural behavior of the pelvis during lateral impact using the finite element method. Accident Anal Prevention 31:109–119
Dalstra M, Huiskes R (1995) Load transfer across the pelvic bone. J Biomech 28(6):715–724
Finlay JB, Boume RB, Landsberg PD, et al. (1986) Pelvic stress in vitro. J Biomech 19:703–714
Dalstra M, Huiskes R (1995) Development and validation three-dimensional finite element model of the pelvic bone . J Biomech Eng 117(8):272–278
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Tie, Y., Ma, R., Ye, M. et al. Rapid prototyping fabrication and finite element evaluation of the three-dimensional medical pelvic model. Int J Adv Manuf Technol 28, 302–306 (2006). https://doi.org/10.1007/s00170-004-2377-z
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DOI: https://doi.org/10.1007/s00170-004-2377-z