Evaluation of bone mineral density after instrumented lumbar fusion with computed tomography

医学 霍恩斯菲尔德秤 腰椎 核医学 腰椎 脊柱融合术 放射科 工件(错误) 计算机断层摄影术 神经科学 生物
作者
Nathan Wanderman,Steven D. Glassman,Tino Mkorombindo,John R. Dimar,Jeffrey L. Gum,Leah Y. Carreon
出处
期刊:The Spine Journal [Elsevier BV]
卷期号:22 (6): 951-956 被引量:7
标识
DOI:10.1016/j.spinee.2022.02.007
摘要

Computed tomography (CT) measurement of Hounsfield Units (HU) has been described as a tool for assessing BMD. For surgeons considering a revision lumbar fusion, knowledge of the BMD of the UIV is of value for surgical planning. However, the presence of metal artifact from instrumentation presents a potential confounder, and prior studies have not validated measurements of HU in this setting.To determine if HU can be measured reliably at the supra-adjacent and upper instrumented levels of a lumbar fusion.Retrospective observational cohort PATIENT SAMPLE: Consecutive series of patients who had lumbar CT scans after an instrumented posterior lumbar fusion.Hounsfield Units at the upper instrumented vertebra and levels proximal.We analysed pre- and postoperative CT scans of 50 patients who underwent L2 and distal instrumented lumbar fusion whose scans were no greater than 1 year apart, obtaining HU measurements of analogous axial cuts at the upper instrumented level (immediately caudal to the halo of the pedicle screw), as well as additional control levels above the construct.The HU at the pre-and postoperative UIV exhibited a strong correlation (r=0.917, p<.001), as did one (r=0.887, p<.001) and two (r=0.853, p<.001) levels above the UIV. There were significant but predictable reductions in the postoperative HU compared to preoperative at one (-9.0±26.2) and two (-12.2±30.2) levels above the UIV, as well as T12 (-13.9±42.2). There was no significant difference in HU at the UIV (4.6±34.1).Postoperative HU at the UIV was strongly correlated with and not significantly different from the preoperative HU. Although the HU in the vertebrae proximal to the UIV were slightly lower postoperatively, this change was predictable using a correction factor.
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
congenialboy发布了新的文献求助10
刚刚
苏卿应助zys采纳,获得30
刚刚
科研助手6应助zys采纳,获得10
刚刚
清歌浊酒完成签到,获得积分20
1秒前
jay发布了新的文献求助10
2秒前
热情鹤发布了新的文献求助30
4秒前
香蕉觅云应助帅男采纳,获得30
4秒前
5秒前
8秒前
小二郎应助wenlin采纳,获得10
9秒前
星辰大海应助大喵采纳,获得10
11秒前
12秒前
13秒前
天天快乐应助xxxllllll采纳,获得30
13秒前
小马甲应助amai采纳,获得10
14秒前
14秒前
热情鹤完成签到,获得积分10
15秒前
方便面了吗完成签到,获得积分20
16秒前
16秒前
16秒前
李健的小迷弟应助llllhh采纳,获得10
17秒前
今夜有雨完成签到 ,获得积分10
18秒前
18秒前
18秒前
18秒前
wenlin发布了新的文献求助10
20秒前
王武聪关注了科研通微信公众号
21秒前
peterlee发布了新的文献求助10
22秒前
wish发布了新的文献求助10
22秒前
风清扬应助慈祥的水池采纳,获得50
24秒前
大喵发布了新的文献求助10
24秒前
27秒前
28秒前
29秒前
30秒前
自觉绿草发布了新的文献求助10
31秒前
31秒前
ioio发布了新的文献求助10
32秒前
32秒前
wenlin完成签到,获得积分10
32秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
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 3989797
求助须知:如何正确求助?哪些是违规求助? 3531914
关于积分的说明 11255516
捐赠科研通 3270597
什么是DOI,文献DOI怎么找? 1805008
邀请新用户注册赠送积分活动 882181
科研通“疑难数据库(出版商)”最低求助积分说明 809190