Anchiornis's wrist bone was so wedge-shaped that it could fold its arms to its sides, keeping its arm feathers off the ground as it walked.
近鸟龙的腕骨呈深楔形，因此它可以将前肢折叠到身体两侧，行走时前肢上的羽毛可以悬空，不会拖在地面上。
The new tibia component and wedge(if used) are secured to the end of the tibia with bone cement.
使用骨水泥，将新的胫骨假体和楔形块（如果有使用）固定于胫骨近端。
The new tibia component and wedge(if used) are secured to the end of the tibia with bone cement.
使用骨水泥，将新的胫骨假体和楔形块（如果有使用）固定于胫骨近端。
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