The bullet lodged in the sergeant's leg, shattering his thighbone.
子弹射入这个军士的腿部，击碎了他的大腿骨。
《柯林斯英汉双解大词典》
2
The ankle is in the wrong position, the thighbone also changes position and you get an abnormal movement in the pelvis, which leads to back problems.
脚踝会错位，股骨头也会改变位置，骨盆会有异常移动，导致背部问题。
3
The results showed that when the women were walking in high heels there was greater strain between the kneecap and thighbone than when they walked with bare feet.