S2 iliosacral screws can be safely and accurately accomplished using a standard technique in patients with unstable posterior pelvic ring disruptions and sacral dysmorphism.
对不稳定骨盆后环损伤及骶骨变异者，采用标准技术可以准确安全地置入s2骶髂螺钉。
Conclusion Facial dysmorphism and the functional disturbance of eyeball were occurred from the orbital fracture resulting in diplopia and enophthalmos because of the change of the orbital volume.
结论：眼眶骨折常因组织嵌顿，眶容积改变而导致复视和眼球内陷，引发面部畸形和眼球功能障碍。
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