레이블이 degenerative인 게시물을 표시합니다. 모든 게시물 표시
레이블이 degenerative인 게시물을 표시합니다. 모든 게시물 표시

2014년 2월 12일 수요일

Risk of infection following posterior instrumented lumbar fusion for degenerative spine disease in 817 consecutive cases

Brief review

이 논문은 퇴행성 척추질환으로 후방경유 요추 유합술을 시행한 817명의 환자 데이터를 리뷰하여 감염에 영향을 끼칠 수 있는 요소를 밝힌 논문 입니다.
감염과 연관된 요소를 밝히기 위해 ‘단계적 다변량 비례 위험도 회기 분석법’을 이용하였습니다.
결과적으로, 연령의 증가와 당뇨병, 비만, 이전의 척추수술 경험 및 재원일수의 증가 등이 후방 경유 요추 유합술 후의 감염의 위험성을 증가시킬 수 있는 요인으로 드러났습니다.



*Title: Risk of infection following posterior instrumented lumbar fusion for degenerative spine disease in 817 consecutive cases
퇴행성 척추질환으로 후방 경유 요추 유합술을 시행한 817명 환자들의 감염 위험성

*Authors: Kaisorn L. Chaichana, M.D., Mohamad Bydon, M.D., David R. Santiago-Dieppa, M.D., Lee Hwang, M.D., Gregory McLoughlin, M.D., Daniel M. Sciubba, M.D., Jean-Paul Wolinsky, M.D., Ali Bydon, M.D., Ziya L. Gokaslan, M.D., and Timothy Witham, M.D.Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland




Summary of Background
Posterior lumbar spinal fusion for degenerative spine disease is a common procedure, and its use is increasing annually. The rate of infection, as well as the factors associated with an increased risk of infection, remains unclear for this patient population. A better understanding of these features may help guide treatment strategies aimed at minimizing infection for this relatively common procedure.


Object
To ascertain the incidence of postoperative spinal infections and identify factors associated with postoperative spinal infections.


Methods
▶Subject: patients underwent instrumented posterior lumbar fusion for degenerative spine disease (1993~2010)

“Stepwise multivariate proportional hazards regression analysis” was used to identify factors associated with infection.
Variables with p < 0.05 were considered statistically significant.


Results
▶Total subjects: 817 patients underwent lumbar fusion
▶Infection patients: 37(4.5%)
-21 (57%) required operative intervention but only 3 (8%) required instrumentation removal as part of their infection management.

▶The factors independently associated with an increased risk of infection.
1) increasing age (RR 1.004 [95% CI 1.001–1.009], p = 0.049)
2) diabetes (RR 5.583 [95% CI 1.322–19.737], p = 0.02)
3) obesity (RR 6.216 [95% CI 1.832–9.338], p = 0.005)
4) previous spine surgery (RR 2.994 [95% CI 1.263–9.346], p = 0.009)
5) increasing duration of hospital stay (RR 1.155 [95% CI 1.076–1.230], p = 0.003)

Conclusions
-older age, diabetes, obesity, prior spine surgery, and length of hospital stay: independently associated with an increased risk of infection in lumbar fusion for degenerative spine disease


-The overwhelming majority of these patients were treated effectively without hardware removal.

2013년 11월 14일 목요일

Risk of infection following posterior instrumented lumbar fusion for degenerative spine disease in 817 consecutive cases.

Brief review


이 논문은 퇴행성 척추질환 때문에 후방경유 요추 유합술을 받은 817명의 환자에게 나타난 감염률과 감염에 영향을 끼치는 요소들을 연구한 논문 입니다.
후향적으로 환자의 데이터를 검토하여 감염률을 조사했고, 단계적 다변량 비례 위험 회귀분석법을 통하여 요추감염과 연관성이 있는 요소들을 알아냈습니다.
연구대상인 817명의 환자에 대해서는 감염률이 4.5%로 나타났고,  나이, 당뇨지수, 비만도, 이전에 척추수술을 시행했는지의 여부, 재원기간 등의 요소들이 감염에 영향을 끼치는 것으로 나타났습니다.



*Title: Risk of infection following posterior instrumented lumbar fusion for degenerative spine disease in 817 consecutive cases.
퇴행성 척추질환으로 후방경유 요추 유합술을 시행한 817명의 사례에 대한 감염의 위험성

*Author: Kaisorn L. Chaichana, Mohamad Bydon, David R. Santiago-Dieppa, Lee Hwang, Gregory McLoughlin, Daniel M. Sciubb a, Jean-Paul Wolinsky, Ali Bydon, Ziya L. Gokaslan, Timothy Witham




Object
The rate and factors of infection risk remains unclear for Posterior lumbar spinal fusion (for degenerative spine disease)
Purpose: To ascertain the incidence and factors of postoperative spinal infections.


Methods
▶Period: 1993 ~ 2010
▶Subject: 817 patients who underwent posterior lumbar fusion for degenerative disease.
-Retrospectively data reviewed.
-To identify the infection factors, using Stepwise multivariate proportional hazards regression analysis.


Results
1. Infection rate: 4.5%
(37 patients out of 817 patients developed postoperative spine infection at a median of 0.6 months (IQR 0.3-0.9) ).

2. Infection factors
1. age (RR 1.004 [95% CI 1.001-1.009], p = 0.049)
2. diabetes (RR 5.583 [95% CI 1.322-19.737], p = 0.02)
3. obesity (RR 6.216 [95% CI 1.832-9.338], p = 0.005)
4. previous spine surgery (RR 2.994 [95% CI 1.263-9.346], p = 0.009)
5. duration of hospital stay (RR 1.155 [95% CI 1.076-1.230], p = 0.003).


Conclusions

-Several factors were associated with an risk of infection among patients underwent lumbar fusion for degenerative disease. (factors: older age, diabetes, obesity, prior spine surgery, and length of hospital stay)