Hounsfield units of the vertebral body and pedicle as predictors of pedicle screw loosening after degenerative lumbar spine surgery

医学 霍恩斯菲尔德秤 椎体 腰椎 腰椎 外科 腰椎 核医学 计算机断层摄影术
作者
Fei Xu,Da Zou,Weishi Li,Zhuoran Sun,Shuai Jiang,Siyu Zhou,Zhuofu Li
出处
期刊:Neurosurgical Focus [American Association of Neurological Surgeons]
卷期号:49 (2): E10-E10 被引量:65
标识
DOI:10.3171/2020.5.focus20249
摘要

OBJECTIVE The authors aimed to compare the efficacy of lumbar vertebral body Hounsfield units (HUs) and pedicle HUs at predicting pedicle screw loosening. METHODS The authors retrospectively assessed 143 patients with L3–5 instrumentation. The patients were classified into one of two groups based on the status of their L3 screws (a screw loosening group or a control group). The pedicle HUs and vertebral HUs of L3 were measured using preoperative lumbar CT scans, and the pedicle HUs were measured in two ways: by excluding or by including cortical bone. RESULTS The screw loosening rate was 20.3% (n = 29/143) at the 12-month follow-up. The vertebral body HUs and pedicle HUs in the screw loosening group were lower than those in the control group (vertebral body group: 98.6 HUs vs 121.4 HUs, p < 0.001; pedicle excluding cortical bone: 208.9 HUs vs 290.5 HUs, p = 0.002; pedicle including cortical bone: 249.4 HUs vs 337.5 HUs, p < 0.001). The pedicle HUs tended to have a higher area under the receiver operating characteristic curve value in predicting screw loosening, compared with that of vertebral body HUs, but the difference was not statistically significant (p > 0.05). Among patients with low vertebral body HUs of ≤ 130, the loosening rate was much lower in patients with pedicle HUs of ≤ 340 than in those with pedicle HUs of > 340 (31.0% vs 13.0%, respectively; p < 0.05). CONCLUSIONS Vertebral body HUs alone are insufficient to accurately evaluate the risk of pedicle screw loosening. Therefore, it is important to collect both the pedicle HU and vertebral body HU measurements for surgical planning.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
专注之双完成签到,获得积分10
刚刚
Zircon完成签到 ,获得积分10
1秒前
Much完成签到 ,获得积分10
2秒前
2秒前
充电宝应助颠覆乾坤采纳,获得10
3秒前
4秒前
无花果应助pz采纳,获得10
4秒前
zheng完成签到 ,获得积分10
6秒前
量子星尘发布了新的文献求助10
7秒前
星辰大海应助荔枝采纳,获得10
7秒前
LJL发布了新的文献求助10
8秒前
meng发布了新的文献求助10
8秒前
无私的颤完成签到,获得积分10
8秒前
lucky完成签到 ,获得积分10
9秒前
Zel博博完成签到,获得积分10
9秒前
谷粱诗云完成签到,获得积分10
9秒前
yar应助myuniv采纳,获得10
9秒前
xc完成签到 ,获得积分10
10秒前
10秒前
干净的天与完成签到,获得积分10
10秒前
哈基米德应助毅诚菌采纳,获得10
12秒前
铁甲小杨完成签到,获得积分0
12秒前
13秒前
卡机了完成签到,获得积分10
14秒前
平淡绿柏完成签到,获得积分10
16秒前
架子猫发布了新的文献求助10
16秒前
16秒前
颠覆乾坤发布了新的文献求助10
17秒前
乔乔完成签到,获得积分10
18秒前
学术小白完成签到,获得积分10
18秒前
min完成签到,获得积分10
18秒前
18秒前
汉堡包应助slin_sjtu采纳,获得10
18秒前
czx完成签到,获得积分10
19秒前
szxnb666发布了新的文献求助30
19秒前
MRJJJJ完成签到,获得积分10
19秒前
chaser完成签到,获得积分10
19秒前
光亮白山完成签到 ,获得积分10
20秒前
科研通AI2S应助大橙子采纳,获得10
20秒前
20秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038235
求助须知:如何正确求助?哪些是违规求助? 3575992
关于积分的说明 11374009
捐赠科研通 3305760
什么是DOI,文献DOI怎么找? 1819276
邀请新用户注册赠送积分活动 892662
科研通“疑难数据库(出版商)”最低求助积分说明 815022