上半球可以移去，在水箱下也没问题。
The upper half of the ball is removable, is under your tank to be removed also.
结论：大多数的病例，椎弓根上半部的椎体外形为半球形，下半部为三角形。
Conclusion. In most cases, the vertebral body shape is hemispherical in the upper part of the pedicle and triangular in the lower part of the pedicle.
结论：大多数的病例，椎弓根上半部的椎体外形为半球形，下半部为三角形。
Conclusion. In most cases, the vertebral body shape is hemispherical in the upper part of the pedicle and triangular in the lower part of the pedicle.
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