当翼龙走路或静止时，第四指及其翼，只能向上翻转，成一个伸展且内翻的V型，在其身体两侧。
When a pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape along each side of the animal's body.
具有手术指征者，切开复位交叉克氏针内固定，可明显降低肘内翻的发生。
For those needing operation, crossed-pin and interior fixation has very good effect with less possibility of cubitus varus.
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