دورية أكاديمية
Biomechanical strength impact of lateral wall breach on spinal pedicle screw fixation.
| العنوان: | Biomechanical strength impact of lateral wall breach on spinal pedicle screw fixation. |
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| المؤلفون: | Ge DW; Department of Orthopaedics, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China. xiaojiancao001@126.com., Chen HT, Qian ZY, Zhang S, Zhuang Y, Yang L, Cao XJ, Sui T |
| المصدر: | European review for medical and pharmacological sciences [Eur Rev Med Pharmacol Sci] 2018 Jul; Vol. 22 (1 Suppl), pp. 63-68. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Verduci Country of Publication: Italy NLM ID: 9717360 Publication Model: Print Cited Medium: Internet ISSN: 2284-0729 (Electronic) Linking ISSN: 11283602 NLM ISO Abbreviation: Eur Rev Med Pharmacol Sci Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Rome : Verduci, [1997- |
| مواضيع طبية MeSH: | Pedicle Screws*, Fracture Fixation, Internal/*methods , Lumbar Vertebrae/*surgery, Animals ; Biomechanical Phenomena ; Female ; Male ; Swine ; Torque |
| مستخلص: | Objective: The purpose of our study was to make a comparison between the fixation strength of optimum placed pedicle screw (OS) and re-directionally accurate placed pedicle screw (RS) after lateral pedicle breach. Patients and Methods: A total of 30 fresh lumbar vertebrae (L1-5) were gained from 6 male or female pigs weighing about 100 kg, which were divided into 2 groups according to different ways of pedicle screws placement: OS group (n=30) and RS group (n=30). MTS machine was employed to detect the screw loosening and axial pullout. We examined seating torque, screw-loosening force, the maximal torque and post-loosening axial pullout in each pedicle screw. Results: Maximal insertion torque of OS was (111.6±8.4) N•cm and RS was (79.0±6.3) N•cm, which indicated a significant difference (Z=3.012, p=0.003). Seating torque of OS and RS were (85.9±5.6) N•cm and (60.3±4.8) N•cm separately, and the difference was statistically significant (Z=2.799, p=0.006). Screw loosening force of OS and RS were (75.9±7.0) N and (52.4±6.3) N respectively, and the difference was statistically significant (Z=2.652, p=0.003). Post-loosening axial pullout force of OS and RS were (328.5±11.3) N and (269.1±9.6) N separately, demonstrating that the difference was statistically significant (Z=2.865, p=0.004). Conclusions: RS placement is an alternative for remediation following a lateral wall breach evidenced by significantly decreased seating torque, screw loosening force, the maximal torque and post-loosening axial pullout compared with OS. |
| تواريخ الأحداث: | Date Created: 20180714 Date Completed: 20191028 Latest Revision: 20191028 |
| رمز التحديث: | 20221213 |
| DOI: | 10.26355/eurrev_201807_15365 |
| PMID: | 30004563 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 2284-0729 |
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| DOI: | 10.26355/eurrev_201807_15365 |