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Medical Journal of Islamic Republic of Iran، جلد ۱۰، شماره ۱، صفحات ۵۹-۶۳
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چکیده فارسی مقاله
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عنوان انگلیسی RESPONSE OF METACARPAL FRACTURE FIXATION CONSTRUCTS TO PHYSIOLOGICAL LOADINGS
چکیده انگلیسی مقاله This study compares the functional capabilities of different metacarpal fixation constructs under physiological loadings in an attempt to identify the optimal construct rather than the strongest one. One hundred and twenty-six preserved human metacarpals were mechanically tested after oblique osteotomies and internal fixation. Maximum load to failure, average structural rigidity, and energy absorbed were determined. All the fixations, except the intramedullary rods, tolerated the assigned physiological loadings below their failure limits in tension and torsion. The safety factor for K-wire tension band in bendings was only 1.4, which is very low compared to those of dorsal plate fixation (4.3) and the two interfragmentary lag screw fixation (4.0). Both torsional and axial rigidity of the K-wire tension band fixation were significantly less than the two interfragmentary lag screw fixation. Fixation by two interfragmentary lag screws was the optimal method, providing adequate strength and stability while requiring less soft tissue dissection than dorsal plate fixation.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله کیخسرو فیروزبخش | keikhosrow firoozbakhsh
from the department of mechanical engineering, biomechanics division, sharif university of technology, tehran, islamic republic of iran

سازمان اصلی تایید شده: دانشگاه صنعتی شریف (Sharif university of technology)

محب s moneim | moheb s moneim
the department of orthopedics and rehabilitation, medical school, university of new mexico, albuquerque, new mexico, u.s.a.
نشانی اینترنتی http://mjiri.iums.ac.ir/browse.php?a_code=A-10-1-464&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Biological Sciences
نوع مقاله منتشر شده Original Research: Basic Science in Medicine
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