Conclusion The technique of Bryan disc prosthesis replacement for epidural cervical disc extrusion can also obtain complete decompression of spinal cord with the precondition of enough bony bed for the prosthesis.

• 至最后一次随访复查,手术节段活动度无明显丢失,假体均无偏移、下沉等。 结论对硬膜外型颈椎间盘突出症行Bryan颈椎间盘假体置换术时,在满足假体骨床的前提下,仍可获得充分的颈脊髓减压。