优化后部起点的圣骨-大-阴茎螺丝/反向的圣骨-大-阴茎螺丝的阴茎关节固定:实验研究和初步应用
Shihao Du1, Zeqing Li2, Dong Li3
1Department of Orthopaedics, Wuxi Ninth People's Hospital Affiliated to Soochow University, No. 999 Liangxi Road, Wuxi, Jiangsu, 214062, China.
BMC musculoskeletal disorders
|January 29, 2026
概括
与经典方法相比,修改后部起点的斜骨 - 大腹 - 关节螺丝 (SAIS) 固定提供了较好的安全性和生物力学性能,用于关节固定. 这种增强的方法,利用S1-S2背孔的中间边缘,显示出优越的稳定性和减少的螺丝透.
科学领域:
- 脊柱外科手术 脊柱外科手术
- 骨科生物力学 骨科生物力学
- 骨盆固定是一种固定.
背景情况:
- 圣节 - 大腹 - 关节螺丝 (SAIS) 固定的经典后部起点可能对关节稳定性不理想.
- 评估替代的后部起点对于优化脊骨和关节固定至关重要.
研究的目的:
- 为了比较SAIS/反向SAIS (RSAIS) 的安全性和生物力学性能,使用经典的 (侧面S1-S2背边缘) 与修改的 (中部S1-S2背边缘) 后部起点用于关节固定.
主要方法:
- CT扫描分析了经典和修改起点的外宽.
- 3D打印模型评估了SAIS/RSAIS的十字侧螺丝轨迹透率.
- 在Tile C1损伤模型上的生物力学测试比较了度和最大负载;在6名患者中评估了临床结果.
主要成果:
- 与经典方法相比,修改后的方法使得S1AIS和S2AIS的外部宽度显著增加,并减少了S1AIS和S2AIS的十字侧螺丝轨迹透率.
- 使用修改方法的固定显示出明显更高的刚度 (13.8%) 和最大负载 (26.2%),而不是经典方法.
- 临床结果显示了优秀的螺丝位置,显著的疼痛减轻 (VAS平均值5.6至1.6),并改善功能 (Majeed平均值59.7至81),没有术后并发症.
结论:
- S1-S2背的中间边界代表了SAIS/RSAIS在关节固定中的更安全,更稳定的后部起点.
- 修改后的方法,特别是S2AIS/RS2AIS,比传统的横边界方法提供了优越的生物机械优势.
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