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Bulletin of Emergency and Trauma، جلد ۱۱، شماره ۴، صفحات ۱۷۳-۱۷۷
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عنوان انگلیسی Evaluation of Various Fixation Methods in Acute Scapholunate Dissociation, A Finite Element Study
چکیده انگلیسی مقاله Objective: This study aimed to compare the outcomes of fixing scapholunate with pins and screws in parallel,
convergent, and divergent orientations.
Methods: In this computer simulation study, the CT scan images of a healthy subject were
used to construct a 3D model of the wrist joint using MIMICS software. The imposed force to scaphoid and
3D model lunate bones, as well as the scapholunate angle and distance, were compared in different surgical
techniques using parallel, divergent, and convergent pins and screws.
Results: In the absence of external force, the imposed stress applied to the scaphoid and lunate bones in cases
of parallel pins and screws were 7.5MPa, 5.08MPa (pins), 1.134MPa, and 1.151MPa (screws), and 10.90MPa,
10.90MPa (pins), 9.7MPa, and 34.1MPa (screws) for 50N flexion force. The imposed stress in this approach is
significantly lower compared to other interventions. Better outcomes were seen regarding scapholunate angle
and scapholunate distance in using parallel pins or screws as well.
Conclusion: In conclusion, implementing parallel pins and screws for scapholunate fixation had better results
in terms of achieving carpal stability in scapholunate dissociation. However, fixation with pins and screws
showed a statistically significant difference. Furthermore, a wide range of motion exercises with no additional
forces can be used in the rehabilitation of patients undergoing this surgery.
کلیدواژه‌های انگلیسی مقاله scapholunate dissociation, scapholunate fixation, scaphoid bone, lunate bone, orthopedic fixation device
نویسندگان مقاله Mohammad Amin Mahdiyar |
Joint and Bone Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

Mohammad Taghi Karimi |
Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz Iran

Hamid Namazi |
Bone and Joint Research Center/Shiraz

Hussein Malekjamshidi |
Joint and Bone Research Center, Shiraz University of Medical Sciences, Shiraz Iran

نشانی اینترنتی https://beat.sums.ac.ir/article_49661_e3195b43155e0e64780ccfa919434a76.pdf
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