中华实验外科杂志
中華實驗外科雜誌
중화실험외과잡지
CHINESE JOURNAL OF EXPERIMENTAL SURGERY
2014年
7期
1454-1456
,共3页
黄进成%刘曦明%蔡贤华%王志华%雷建银
黃進成%劉晞明%蔡賢華%王誌華%雷建銀
황진성%류희명%채현화%왕지화%뢰건은
髋臼骨折%有限元分析%内固定
髖臼骨摺%有限元分析%內固定
관구골절%유한원분석%내고정
Acetabular fractures%Finite element analysis%Internal fixation
目的 利用三维有限元评价前路特殊塑形钛板加方形区螺钉联合后柱拉力螺钉内固定治疗累及方形区的复杂髋臼骨折的生物力学稳定性.方法 按Letournel分型,建立“T”形(Ⅰ)、前柱+后半横(Ⅱ)及双柱骨折(Ⅲ)模型.再分别模拟双柱钛板内固定(A)、单纯前路特殊塑形钛板加方形区螺钉内固定(B)及前路特殊塑形钛板加方形区螺钉联合后柱拉力螺钉内固定(C)治疗此3种骨折并模拟站立位时,在正常载荷下对3种内固定方式进行生物力学稳定性比较.结果 在各种骨折模型上,3种内固定与正常模型比较,骨折线上各节点的平均位移为C＜B＜正常模型＜A,差异无统计学意义(P＞0.05).结论 前路特殊塑形钛板加方形区螺钉联合后柱拉力螺钉内固定治疗累及方形区的复杂髋臼骨折具有良好生物力学稳定性.
目的 利用三維有限元評價前路特殊塑形鈦闆加方形區螺釘聯閤後柱拉力螺釘內固定治療纍及方形區的複雜髖臼骨摺的生物力學穩定性.方法 按Letournel分型,建立“T”形(Ⅰ)、前柱+後半橫(Ⅱ)及雙柱骨摺(Ⅲ)模型.再分彆模擬雙柱鈦闆內固定(A)、單純前路特殊塑形鈦闆加方形區螺釘內固定(B)及前路特殊塑形鈦闆加方形區螺釘聯閤後柱拉力螺釘內固定(C)治療此3種骨摺併模擬站立位時,在正常載荷下對3種內固定方式進行生物力學穩定性比較.結果 在各種骨摺模型上,3種內固定與正常模型比較,骨摺線上各節點的平均位移為C＜B＜正常模型＜A,差異無統計學意義(P＞0.05).結論 前路特殊塑形鈦闆加方形區螺釘聯閤後柱拉力螺釘內固定治療纍及方形區的複雜髖臼骨摺具有良好生物力學穩定性.
목적 이용삼유유한원평개전로특수소형태판가방형구라정연합후주랍력라정내고정치료루급방형구적복잡관구골절적생물역학은정성.방법 안Letournel분형,건립“T”형(Ⅰ)、전주+후반횡(Ⅱ)급쌍주골절(Ⅲ)모형.재분별모의쌍주태판내고정(A)、단순전로특수소형태판가방형구라정내고정(B)급전로특수소형태판가방형구라정연합후주랍력라정내고정(C)치료차3충골절병모의참립위시,재정상재하하대3충내고정방식진행생물역학은정성비교.결과 재각충골절모형상,3충내고정여정상모형비교,골절선상각절점적평균위이위C＜B＜정상모형＜A,차이무통계학의의(P＞0.05).결론 전로특수소형태판가방형구라정연합후주랍력라정내고정치료루급방형구적복잡관구골절구유량호생물역학은정성.
Objective To evaluate biomechanical properties of anterior reconstruction plate and trans-plate quadrilateral screws combinated with lag screw internal fixation in the posterior column of acetabular by three-dimensional finite element for providing theory basis to choice the internal fixation ways for complex acetabular fractures with fracture of quadrilateral.Methods According to Letoumel classification,T-shaped (Ⅰ),anterior column plus posterior hemitransverse (Ⅱ) and both-column (Ⅲ) acetabular fracture model was established.The biomechanics of double-column plate (A),anterior reconstruction plate and trans-plate quadrilateral screws (B) and anterior reconstruction plate and trans-plate quadrilateral screws combinated with lag screw itermal fixation in the posterior column of acetabular (C) on the standing position and normal load were analyzed,when each acetabular fracture model was internal fixation by them.Results The mean displacement of notes along fracture line on each fracture model is C ＜ B ＜ normal model ＜ A,while no significant difference each other (P ＞ 0.05).Conclusion Complex acetabular fractures with fracture of quadrilateral was internal fixed with anterior reconstruction plate and trans-plate quadrilateral screws combinated with lag screw internal fixation in the posterior column of acetabular has a good biomechanical stability.
