인공 추간반 수핵 치환술이 추간반 높이와 운동 범위에 미치는 영향:예비보고 = Effect of a PDN(Prosthetic Disc Nucleus) on the Mobility and Height of the Intervertebral Disc:Preliminary Report

다국어 초록 (Multilingual Abstract)

Objective : The purpose of the current study is to investigate the effect of the prosthetic disc nucleus replacement
on the mobility and height of the intervertebral disc and adjacent segments.
Methods : Thirteen patients who underwent L4-L5 prosthetic disc nucleus replacement were included in this
study. A retrospective review of clinical and radiological data was conducted. The L4-L5 disc height and sagittal
rotation angle of L3-L4, L4-L5, L5-S1 were measured in the static and dynamic lateral radiographs pre- and
postoperatively.
Results : There were seven men and six women whose mean age was 37 years (range, 24-49 years). The mean
follow-up period was nine months (range, 6-14 months). In all cases the L4-L5 motion segment demonstrated
angular motion between flexion and extension with a mean of 4°(±2.3°) of sagittal rotation angle. The disc height
increased from preoperative levels by 117%. There was no difference in angular motion of adjacent segments
between pre- and postoperative data.
Conclusion : The prosthetic disc nucleus replacement after discectomy is shown to restore the disc height and
maintain segmental mobility.

참고문헌 (Reference)

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