Virtual preoperative measurement and surgical manipulation of sagittal spinal alignment using a novel research and educational software program

2010 ◽  
Vol 28 (3) ◽  
pp. E2 ◽  
Author(s):  
David B. Pettigrew ◽  
Chad J. Morgan ◽  
R. Brian Anderson ◽  
Philip A. Wilsey ◽  
Charles Kuntz
Keyword(s):  
Educational Software ◽  
Computer Software ◽  
Pedicle Subtraction Osteotomy ◽  
Educational Tool ◽  
Spinal Alignment ◽  
Sagittal Spinal Alignment ◽  
Software Program ◽  
Spine Surgeon ◽  
New Research ◽  
Surgical Manipulation

Understanding regional as well as global spinal alignment is increasingly recognized as important for the spine surgeon. A novel software program for virtual preoperative measurement and surgical manipulation of sagittal spinal alignment was developed to provide a research and educational tool for spine surgeons. This first-generation software program provides tools to measure sagittal spinal alignment from the occiput to the pelvis, and to allow for virtual surgical manipulation of sagittal spinal alignment. The software was developed in conjunction with Clifton Labs, Inc. Photographs and radiographs were imported into the software program, and a 2D virtual spine was constructed from the images. The software then measured regional and global sagittal spinal alignment from the virtual spine construct, showing the user how to perform the measurements. After measuring alignment, the program allowed for virtual surgical manipulation, simulating surgical procedures such as interbody fusion, facet osteotomy, pedicle subtraction osteotomy, and reduction of spondylolisthesis, as well as allowing for rotation of the pelvis on the hip axis. Following virtual manipulation, the program remeasured regional and global sagittal spinal alignment. Computer software can be used to measure and manipulate sagittal spinal alignment virtually, providing a new research and educational tool. In the future, more comprehensive programs may allow for measurement and interaction in the coronal, axial, and sagittal planes.

Perangkat lunak komputer

2020 ◽  
Author(s):  
Lisa Wati
Keyword(s):  
Computer Program ◽  
Programming Language ◽  
Computer Software ◽  
Computer Users ◽  
Software System ◽  
Physical Sense ◽  
Software Program ◽  
User Instructions ◽  
Sense Of Touch

Abstrak Perangkat lunak komputer (software) atau disebut juga dengan peranti lunak adalah sebuah program komputer yang menjadi jembatan penghubung antara pengguna komputer (user) dengan komputer. Dengan kata lain, perangkat lunak merupakan penerjemah antara user sebagai pemberi intruksi dan komputer sebagai pihak yang menerima intruksi. Software memiliki sifat bertolak belakang dengan hardware. Jika fisik hardware dapat disentuh, lain halnya dengan software, software tidak dapat disentuh dengan indra peraba secara fisik. Namun, software sangat penting dalam pengoprasian komputer. Karna tanpa software komputer hanya mesin yang tidak dapat dioperasikan dengan intruksi user. Sistem software dibuat dengan menggunakan bahasa pemrograman yang ditulis oleh programmer sehingga menjadi kode yang dapat dikenali perangkat keras.Kata kunci : Perangkat lunak komputer, software, programAbstractComputer software (software) is a computer program that serves as a bridge between computer users (users) and computers. In other words, software is a translator between the user as the giver of instructions and the computer as the party who receives the instructions. Software has the opposite properties to hardware. If physical hardware can be touched, another case with software, software cannot be touched with the physical sense of touch. However, software is very important in operating the computer. Because without computer software only machines that cannot be operated with user instructions. The software system is created using a programming language written by the programmer so that it becomes code that can be recognized by the hardware.Keywords: Computer software, software, program

PERANGKAT LUNAK KOMPUTER

2020 ◽  
Author(s):  
Lisawati
Keyword(s):  
Computer Program ◽  
Programming Language ◽  
Computer Software ◽  
Computer Users ◽  
Software System ◽  
Physical Sense ◽  
Software Program ◽  
User Instructions ◽  
Sense Of Touch

Abstrak Perangkat lunak komputer (software) atau disebut juga dengan peranti lunak adalah sebuah program komputer yang menjadi jembatan penghubung antara pengguna komputer (user) dengan komputer. Dengan kata lain, perangkat lunak merupakan penerjemah antara user sebagai pemberi intruksi dan komputer sebagai pihak yang menerima intruksi. Software memiliki sifat bertolak belakang dengan hardware. Jika fisik hardware dapat disentuh, lain halnya dengan software, software tidak dapat disentuh dengan indra peraba secara fisik. Namun, software sangat penting dalam pengoprasian komputer. Karna tanpa software komputer hanya mesin yang tidak dapat dioperasikan dengan intruksi user. Sistem software dibuat dengan menggunakan bahasa pemrograman yang ditulis oleh programmer sehingga menjadi kode yang dapat dikenali perangkat keras.Kata kunci : Perangkat lunak komputer, software, program AbstractComputer software (software) is a computer program that serves as a bridge between computer users (users) and computers. In other words, software is a translator between the user as the giver of instructions and the computer as the party who receives the instructions. Software has the opposite properties to hardware. If physical hardware can be touched, another case with software, software cannot be touched with the physical sense of touch. However, software is very important in operating the computer. Because without computer software only machines that cannot be operated with user instructions. The software system is created using a programming language written by the programmer so that it becomes code that can be recognized by the hardware.Keywords: Computer software, software, program

Perangkat lunak komputer

2020 ◽  
Author(s):  
Lisa Wati
Keyword(s):  
Computer Program ◽  
Programming Language ◽  
Computer Software ◽  
Computer Users ◽  
Software System ◽  
Physical Sense ◽  
Software Program ◽  
User Instructions ◽  
Sense Of Touch

Abstrak Perangkat lunak komputer (software) atau disebut juga dengan peranti lunak adalah sebuah program komputer yang menjadi jembatan penghubung antara pengguna komputer (user) dengan komputer. Dengan kata lain, perangkat lunak merupakan penerjemah antara user sebagai pemberi intruksi dan komputer sebagai pihak yang menerima intruksi. Software memiliki sifat bertolak belakang dengan hardware. Jika fisik hardware dapat disentuh, lain halnya dengan software, software tidak dapat disentuh dengan indra peraba secara fisik. Namun, software sangat penting dalam pengoprasian komputer. Karna tanpa software komputer hanya mesin yang tidak dapat dioperasikan dengan intruksi user. Sistem software dibuat dengan menggunakan bahasa pemrograman yang ditulis oleh programmer sehingga menjadi kode yang dapat dikenali perangkat keras.Kata kunci : Perangkat lunak komputer, software, programAbstractComputer software (software) is a computer program that serves as a bridge between computer users (users) and computers. In other words, software is a translator between the user as the giver of instructions and the computer as the party who receives the instructions. Software has the opposite properties to hardware. If physical hardware can be touched, another case with software, software cannot be touched with the physical sense of touch. However, software is very important in operating the computer. Because without computer software only machines that cannot be operated with user instructions. The software system is created using a programming language written by the programmer so that it becomes code that can be recognized by the hardware.Keywords: Computer software, software, program

scholarly journals Clasped position for measurement of sagittal spinal alignment

2010 ◽  
Vol 19 (5) ◽  
pp. 782-786 ◽  
Author(s):  
Hidekazu Suzuki ◽  
Kenji Endo ◽  
Jun Mizuochi ◽  
Hiroto Kobayashi ◽  
Hidetoshi Tanaka ◽  
...  
Keyword(s):  
Spinal Alignment ◽  
Sagittal Spinal Alignment

SPINAL DEFORMITY

Neurosurgery ◽  
2008 ◽  
Vol 63 (suppl_3) ◽  
pp. A25-A39 ◽  
Author(s):  
Charles Kuntz ◽  
Christopher I. Shaffrey ◽  
Stephen L. Ondra ◽  
Atiq A. Durrani ◽  
Praveen V. Mummaneni ◽  
...  
Keyword(s):  
Literature Review ◽  
Spinal Deformity ◽  
English Literature ◽  
Spinal Alignment ◽  
New Classification ◽  
Sagittal Spinal Alignment ◽  
Asymptomatic Volunteers ◽  
Asymptomatic Individuals ◽  
Spinal Abnormality

ABSTRACT OBJECTIVE In this literature review, the authors analyze data from previously published studies that evaluated neutral upright spinal alignment (NUSA) from the occiput to the pelvis in asymptomatic individuals. Based on the data for NUSA in asymptomatic volunteers, a new classification is proposed for spinal deformity. METHODS A review of the English literature was conducted to identify studies evaluating NUSA from the occiput to the pelvis in asymptomatic juvenile, adolescent, adult, and geriatric volunteers. From the literature review, 17 angles and displacements were selected to depict neutral upright coronal and axial spinal alignment, and 21 angles and displacements were selected to depict neutral upright sagittal spinal alignment. Pooled estimates of the mean and variance were calculated for the angles and displacements from the articles that met inclusion criteria. A new classification of spinal deformity was then developed based on age-dependent NUSA; spinal abnormality; deformity curve location, pattern, magnitude, and flexibility; and global spinal alignment. RESULTS Despite a wide variation in the regional curves from the occiput to the pelvis in asymptomatic volunteers, global spinal alignment is maintained in a narrow range for preservation of horizontal gaze and balance of the spine over the pelvis and femoral heads. CONCLUSION A new classification of spinal deformity is proposed that provides a structure for defining deformity of all patient ages and spinal abnormalities.

An Analysis of Sagittal Spinal Alignment in 100 Asymptomatic Middle and Older Aged Volunteers

Spine ◽  
1995 ◽  
Vol 20 (12) ◽  
pp. 1351-1358 ◽  
Author(s):  
Daniel E. Gelb ◽  
Lawrence G. Lenke ◽  
Keith H. Bridwell ◽  
Kathy Blanke ◽  
Kevin W. McEnery
Keyword(s):  
Spinal Alignment ◽  
Sagittal Spinal Alignment

scholarly journals A Flat Sagittal Spinal Alignment Is Common among Young Patients with Lumbar Disc Herniation

2016 ◽  
Vol 06 (09) ◽  
pp. 294-304 ◽  
Author(s):  
Olof Thoreson ◽  
Joel Beck ◽  
Klas Halldin ◽  
Helena Brisby ◽  
Adad Baranto
Keyword(s):  
Lumbar Disc Herniation ◽  
Disc Herniation ◽  
Lumbar Disc ◽  
Young Patients ◽  
Spinal Alignment ◽  
Sagittal Spinal Alignment

scholarly journals Does obesity affect acetabular cup position, spinopelvic function and sagittal spinal alignment? A prospective investigation with standing and sitting assessment of primary hip arthroplasty patients

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Henryk Haffer ◽  
Zhen Wang ◽  
Zhouyang Hu ◽  
Luis Becker ◽  
Maximilian Müllner ◽  
...  
Keyword(s):  
Hip Arthroplasty ◽  
Pelvic Tilt ◽  
Obese Group ◽  
Sagittal Imbalance ◽  
Obese Patients ◽  
Spinal Alignment ◽  
Acetabular Cup ◽  
Sagittal Spinal Alignment ◽  
Hip Motion ◽  
Cup Position

Abstract Background Total hip arthroplasty (THA) instability is influenced by acetabular component positioning, spinopelvic function and sagittal spinal alignment. Obesity is considered as a risk factor of THA instability, but the causal relationship remains unknown. This study aimed to investigate the influence of BMI on (1) spinopelvic function (lumbar flexibility, pelvic mobility and hip motion), (2) sagittal spinal alignment pre- and postoperatively and (3) acetabular cup position postoperatively in primary THA patients in a prospective setting. Methods One hundred ninety patients receiving primary total hip arthroplasty were enrolled in a prospective cohort study and retrospectively analysed. All patients received stereoradiography (EOS) in standing and relaxed sitting position pre-and postoperatively. C7-sagittal vertical axis (C7-SVA), lumbar lordosis (LL), pelvic incidence (PI), pelvic tilt (PT), anterior plane pelvic tilt (APPT), and pelvic femoral angle (PFA) were assessed. Key parameters of the spinopelvic function were defined as lumbar flexibility (∆ LL = LLstanding − LLsitting), pelvic mobility (∆ PT = PTstanding − PTsitting) and hip motion (∆ PFA = PFAstanding − PFAsitting). Pelvic mobility was further defined based on ∆ PT as stiff, normal and hypermobile (∆ PT < 10°; 10°–30°; > 30°). The patients were stratified to BMI according to WHO definition: normal BMI ≥ 18.5–24.9 kg/m2 (n = 68), overweight ≥ 25.0–29.9 kg/m2 (n = 81) and obese ≥ 30–39.9 kg/m2 (n = 41). Post-hoc analysis according to Hochberg's GT2 was applied to determine differences between BMI groups. Results Standing cup inclination was significant higher in the obese group compared to the normal BMI group (45.3° vs. 40.1°; p = 0.015) whereas standing cup anteversion was significantly decreased (22.0° vs. 25.3°; p = 0.011). There were no significant differences for spinopelvic function key parameter lumbar flexibility (∆ LL), pelvic mobility (∆ PT) and hip motion (∆ PFA) in relation to BMI stratified groups. The obese group demonstrated significant enhanced pelvic retroversion compared to the normal BMI group (APPT − 1.8° vs. 2.4°; p = 0.028). The preoperative proportion of stiff pelvic mobility was decreased in the obese group (12.2%) compared to normal (25.0%) and overweight (27.2%) groups. Spinal sagittal alignment in C7-SVA and PI-LL mismatch demonstrated significantly greater imbalance in the obese group compared to the normal BMI group (68.6 mm vs. 42.6 mm, p = 0.002 and 7.7° vs. 1.2°, p = 0.032, respectively) The proportion of patients with imbalanced C7-SVA was higher in the obese (58.5%) than in the normal BMI group (44.1%). Conclusions The significantly increased spinal sagittal imbalance with altered pelvic mechanics is a potential cause for the reported increased risk of THA dislocations in obese patients. Consequently, the increased spinal sagittal imbalance in combination with normal pelvic mobility need to be taken into account when performing THA in obese patients.

scholarly journals Development of educational software for beam loading analysis using pen-based user interfaces

2014 ◽  
Vol 1 (1) ◽  
pp. 67-77 ◽  
Author(s):  
Yong S. Suh
Keyword(s):  
User Interfaces ◽  
Shape Matching ◽  
Educational Software ◽  
Educational Tool ◽  
Learning Tools ◽  
Engineering Software ◽  
Beam Loading ◽  
Solution Processes ◽  
Matching Technique ◽  
Graphical Feedback

Abstract Most engineering software tools use typical menu-based user interfaces, and they may not be suitable for learning tools because the solution processes are hidden and students can only see the results. An educational tool for simple beam analyses is developed using a pen-based user interface with a computer so students can write and sketch by hand. The geometry of beam sections is sketched, and a shape matching technique is used to recognize the sketch. Various beam loads are added by sketching gestures or writing singularity functions. Students sketch the distributions of the loadings by sketching the graphs, and they are automatically checked and the system provides aids in grading the graphs. Students receive interactive graphical feedback for better learning experiences while they are working on solving the problems.

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