Finite element analysis of the lumbar destabilization following pedicle subtraction osteotomy

被引：43

作者：

Ottardi, Claudia ^{[1
]}

Galbusera, Fabio ^{[2
]}

Luca, Andrea ^{[3
]}

Prosdocimo, Liliana ^{[1
]}

Sasso, Maurizio ^{[1
]}

Brayda-Bruno, Marco ^{[3
]}

Villa, Tomaso ^{[1
,2
]}

机构：

[1] Politecn Milan, Lab Biol Struct Mech, Dept Chem Mat & Chem Engn G Natta, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy

[2] IRCCS Ist Ortoped Galeazzi, Milan, Italy

[3] IRCCS Ist Ortoped Galeazzi, Dept Spine Surg 3, Milan, Italy

来源：

MEDICAL ENGINEERING & PHYSICS | 2016年 / 38卷 / 05期

关键词：

Pedicle subtraction osteotomy; Lumbar spine; Osteotomy; Finite elements; Destabilization; ADULT SPINAL DEFORMITY; FLEXION-EXTENSION; ROD FRACTURE; SURGERY; PSO; ROTATION; FAILURE; COLUMN; DISC;

D O I：

10.1016/j.medengphy.2016.02.002

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This study aims to analyze the destabilization produced following a pedicle subtraction osteotomy (PSO), with a calibrated numerical model. A 30 degrees resection was created on L3 and L4. Range of Motion (ROM) and the force acting on the vertebral body were calculated. Osteotomies consistently increased the ROMs. In the intact model, 87% of the compressive load was acting on the vertebral bodies whereas in the destabilized models all the load was on the fractured surface. Osteotomies at both levels induced a marked instability but the PSO at L4 seemed to have a greater influence on the ROM. Despite the significant deformity corrections which could be achieved with PSO, this technique needs further analyses. (C) 2016 IPEM. Published by Elsevier Ltd. All rights reserved.

引用

页码：506 / 509

页数：4

共 30 条

[1]

Alizadeh M, 2010, IEEE EMBS C BIOM ENG

[2]

Bergin PF, 2010, ORTHOPEDICS, V33, P586, DOI [10.3928/01477447-20100625-22, 10.3928/01477447-20100801-02]

[3] Pedicle subtraction osteotomies (PSO) in the lumbar spine for sagittal deformities [J].

Berjano, Pedro ;

Aebi, Max .

EUROPEAN SPINE JOURNAL, 2015, 24 :S49-S57

[4] Finite element analysis of cancellous bone failure in the vertebral body of healthy and osteoporotic subjects [J].

Boccaccio, A. ;

Vena, P. ;

Gastaldi, D. ;

Franzoso, G. ;

Pietrabissa, R. ;

Pappalettere, C. .

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE, 2008, 222 (H7) :1023-1036

[5] Decision making regarding Smith-Petersen vs. pedicle subtraction osteotomy vs. vertebral column resection for spinal deformity [J].

Bridwell, Keith H. .

SPINE, 2006, 31 (19) :S171-S178

[6] Pedicle subtraction osteotomy for the treatment of fixed sagittal imbalance [J].

Bridwell, KH ;

Lewis, SJ ;

Lenke, LG ;

Baldus, C ;

Blanke, K .

JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME, 2003, 85A (03) :454-463

[7] Comparative anatomical dimensions of the complete human and porcine spine [J].

Busscher, Iris ;

Ploegmakers, Joris J. W. ;

Verkerke, Gijsbertus J. ;

Veldhuizen, Albert G. .

EUROPEAN SPINE JOURNAL, 2010, 19 (07) :1104-1114

[8] Instability and instrumentation failures after a PSO: a finite element analysis [J].

Charosky, Sebastien ;

Moreno, Pierre ;

Maxy, Philippe .

EUROPEAN SPINE JOURNAL, 2014, 23 (11) :2340-2349

[9]

Cowin SC., 1991, BONE MECH, P97

[10] Mechanical variables affecting balloon kyphoplasty outcome - a finite element study [J].

Dabirrahmani, Dane ;

Becker, Stephan ;

Hogg, Michael ;

Appleyard, Richard ;

Baroud, Gamal ;

Gillies, Mark .

COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING, 2012, 15 (03) :211-220

← 1 2 3 →