Objective: To study the mechanism and X-raysign characteristic of students cervical spondylosis, and find its causes.
目的：探讨大学生颈椎病的X线征象特点及发生机制，寻找其发病原因。
2
Conclusion Knowing well the normal X-raysign of wrist, mastering the X-ray characteristic of each types of dislocation and fracture, is the linchpin of reducing missing diagnosis.
结论熟悉腕关节的正常X线表现，掌握各型脱位及骨折脱位的X线特点，是避免漏误诊的关键。
3
Objective The X-ray exhibition of slipped capital femoral epiphysis(SCFE) were discussed, emphasizes analyse the X-ray's sign and reasons of SCFE with earlier period and mild degree.