Brief review
이 논문은
요추
협착증의
치료방법으로서
극돌기간
삽입체와
기존의
감압술을
비교한
무작위
대조군
연구
입니다.
술 후
8주 이내의
짧은
기간
내에서,
극돌기간
고정체
삽입술이
감압술에
비해
효과적인가를
평가하기
위한
것이
목적
입니다.
2008년
10월부터
2011년
9월까지
1 or 2분절에 요추 협착증이
있어
NIC(신경성 간헐적
보행장애)를
보이는
환자
159명을
대상으로
무작위,
이중맹검으로
수술을
시행하였고,
수술
후
8주차,
1년차에
각각
ZCQ(보행장애와 관련된
설문)을
통해
success rate를 평가했습니다.
평가결과, 8주차에는
interspinous그룹이 decompression그룹에
비해
성공률이
월등히
높지는
않았고,
1년
차에도
두
그룹간에
차이가
없었습니다.
결론적으로, 이
연구에서는
단기간
내,
interspinous process device 삽입술이 decompression에
비해
우수하다는
것을
증명하지
못했으며,
오히려
interspinous process device삽입술이
decompression에 비해
유의하게
재
수술률이
높은
것으로
나타났습니다.
*Title: Interspinous process device versus
standard conventional surgical decompression for lumbar spinal stenosis:
randomized controlled trial.
*Authors: Moojen WA,
Arts MP, Jacobs WC, van Zwet EW, van den Akker-van Marle ME, Koes BW, Vleggeert-Lankamp
CL, Peul WC
*Bibliography: BMJ.2013 Nov 14; 347: f6415.
OBJECTIVE
To assess whether interspinous process device
implantation is more effective in the short term than conventional surgical
decompression for patients with
intermittent neurogenic claudication due to lumbar spinal stenosis.
DESIGN
Randomized controlled
trial
(prospective,
randomized, double blind, multicenter trial)
SETTING
5neurosurgical
centers (including one academic and four secondary level care centers) in the
Netherlands.
PARTICIPANTS
▶Enrollment
period: 2008.10~2011.09
▶Subject
number: 159 participants (with intermittent neurogenic claudication due to
lumbar spinal stenosis at 1 or 2 levels)
INTERVENTIONS
Total 159 patients
(80 interspinous process device group + 79 spinal bony decompression group)
MAIN OUTCOME MEASURES
▶Measurement
method: Zurich Claudication Questionnaire score (ZCQ)
▶Follow-up
period: 1) primary outcome at short term (8weeks), 2) long term (1year)
-Repeated
measurements were made to compare outcomes over time.
RESULTS
▶Success
rate(ZCQ)
1) short term F/U(8wks):
interspinous process device group (63%, 95% confidence interval 51% to
73%) was not superior to that for standard bony decompression (72%, 60%
to 81%).
2) long term F/U(1yr): No
differences in disability (ZCQ; p=0.44)
or other outcomes were observed between groups
-The repeat surgery
rate: interspinous implant group was substantially higher (n=21; 29%) than
that in the conventional group (n=6; 8%) in the early post-surgical period
(P<0.001).
CONCLUSIONS
-This double blinded
study could not confirm the hypothesized short term advantage of interspinous
process device over conventional "simple" decompression.
-After interspinous
process device implantation, showed a fairly high reoperation rate.