择期进行后伸截骨术时，医生持住患者头部进行“折骨”，临时造成不稳定颈椎骨折。
In elective extension osteotomies, the surgeon manipulates the head to generate osteoclasis, temporarily producing an unstable cervical fracture.
择期进行后伸截骨术时，医生持住患者头部进行“折骨”，临时造成不稳定颈椎骨折。
In elective extension osteotomies, the surgeon manipulates the head to generate osteoclasis, temporarily producing an unstable cervical fracture.
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