ArticleZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery2026
[Impact of lamina formation range on lumbar biomechanics in unilateral biportal endoscopic spine surgery: a finite element analysis for surgical optimization].
Article in Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To explore the impact of different lamina formation ranges on the biomechanical stability of L Methods: A complete lumbar finite element model (M0) was constructed based on CT data of L Results: With increasing forming range, the ROM of the vertebrae in flexion showed a slight increase (0.32° higher in M4 model than in M0 model), and the maximum displacement generally increased in all motion states. For the intervertebral disc, the maximum von Mises stress and displacement increased mildly in flexion and left rotation, which were approximately 17% and 12% higher in M3 and M4 models than in M0 model, respectively. And the biomechanical parameters changed little among different models under extension, right rotation, and left bending. The von Mises stress of the right facet joint increased stepwise with forming range during left rotation (about 57% higher in M3 model than in M0 model) and was higher in all surgical models than in M0 model during right bending. Conclusion: Expanding the lamina formation range in UBE spine surgery can lead to reduced stability in flexion and left rotation activities at L
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