Method:Eleven Danish Landrace pigs,approximately 3 months old,35kg were selected to receive two level interbody fu-sions(L3/4,L5/6) with cages.

• 方法:11头体重约35kg的丹麦猪接受L3/4和L5/6两个节段的前路椎体间融合器植骨融合手术。