Shian Liu

Followers

Following

Co-authors

Public Views

David Seamon

Kansas State University

Marco Aurélio M Á X I M O Prado

UFMG - The Federal University of Minas Gerais

Giuseppe Aricó

Observatori d'Antropologia del Conflicte Urbà (OACU)

Héctor Berroeta

Universidad de Valparaiso

David Pavón-Cuéllar

Universidad Michoacana de San Nicolás de Hidalgo

Ertuğrul Murat Özgür

Ankara University

Viacheslav Kuleshov

Stockholm University

Jose Mansilla

Universitat Autònoma de Barcelona

Horacio Espinosa Zepeda

Observatori d'Antropologia del Conflicte Urbà (OACU)

Dragos Simandan

Brock University

Interests

Uploads

Papers by Shian Liu

Global Sagittal Alignment Analysis Including Lower Extremities: Role of Pelvic Translation and the Lower Extremities in Compensation for Spinal Deformity

by Shian Liu, Barthelemy Liabaud, and Jean-charles Le Huec

The Spine Journal, 2014

Discrepancies in Preoperative Planning and Operative Execution in the Correction of Sagittal Spinal Deformities

by Shian Liu and Stephen Maier

The Spine Journal, 2014

Recruitment of Compensatory Mechanisms in Sagittal Spinal Malalignment is Age and Regional Deformity Dependent

Spine, 2015

Study Design. Retrospective review, full-body radiographical analysis of adult patients with sagi... more Study Design. Retrospective review, full-body radiographical analysis of adult patients with sagittal spinal malalignment (SSM). Objective. To investigate the compensatory mechanisms involved in the sagittal plane of the body after progressive spinal sagittal malalignment and to study the impact of age on compensatory mechanism recruitment. Summary of Background Data. Patients with SSM recruit compensatory mechanisms to maintain erect posture and horizontal gaze. Mechanisms such as pelvic retroversion, knee fl exion, and pelvic shift have been proposed, but how they contribute and how age affects their recruitment are poorly understood. Methods. Retrospective review of adult patients with SSM who underwent full-standing axis stereoradiography (EOS imaging). Radiographical measurements were performed with Surgimap. Patients were categorized on the basis of the mismatch between pelvic incidence (PI) and lumbar lordosis (PI-LL). Compensatory mechanisms were normalized to each patient's PI-LL and compared by mismatch groups. In addition, patients were subcategorized into 2 age groups ( ≥ 65 and < 65 yr) and compared within the same groups of mismatch.

Download

Likelihood of reaching minimal clinically important difference in adult spinal deformity: a comparison of operative and nonoperative treatment

The Ochsner journal, 2014

Few studies have examined threshold improvements in health-related quality of life (HRQOL) by mea... more Few studies have examined threshold improvements in health-related quality of life (HRQOL) by measuring minimal clinically important differences (MCIDs) in treatment of adult spinal deformity. We hypothesized that patients undergoing operative treatment would be more likely to achieve MCID threshold improvement compared with those receiving nonoperative care, although a subset of nonoperative patients may still reach threshold. We analyzed a multicenter, prospective, consecutive case series of 464 patients: 225 nonoperative and 239 operative. To be included in the study, patients had to have adult spinal deformity, be older than 18 years, and have both baseline and 1-year follow-up HRQOL measures (Oswestry Disability Index [ODI], Short Form-36 [SF-36] health survey, and Scoliosis Research Society-22 [SRS-22] questionnaire). We compared the percentages of patients achieving established MCID thresholds between operative and nonoperative groups using risk ratios (RR) with a 95% confide...

Download

Reaching Minimal Clinically Important Difference through Nonoperative Treatment of Adult Spinal Deformity

by Shian Liu and Barthelemy Liabaud

The Spine Journal, 2014

Revisions and Junctional Failures of Short versus Long Fusions for Adult Spinal Deformity

by Shian Liu and Stephen Maier

The Spine Journal, 2014

Perioperative Risks Associated with Cervical Spondylotic Myelopathy Based on Surgical Treatment Strategies

by Anthony Boniello and Shian Liu

International Journal of Spine Surgery, 2015

Few studies have provided nationwide estimates of patient characteristics and procedure-related c... more Few studies have provided nationwide estimates of patient characteristics and procedure-related complications, or examined postsurgical outcomes for patients with cervical spondylotic myelopathy (CSM) comparatively with respect to surgical approach. The objective of this study is to identify patients at risk for morbidity and mortality directly related with the selected approach, report an overall nation-wide complication rate for each approach against which surgeons can compare themselves, and direct future research to improve patient outcomes. Patients surgically treated for CSM were retrospectively identified using ICD-9-CM codes from the Nationwide Inpatient Sample (NIS) database. Four cohorts were compared for demographics and hospital system-related data: anterior (ACDF, ACCF), posterior decompression without fusion, decompression with posterior fusion, and combined anterior-posterior. Multivariate analysis was also used to determine the odds ratio of morbidity and mortality among the cohorts. 54,416 discharges were identified between 2001 and 2010: 34,400 anterior, 9,014 decompression procedures without fusion, 8,741 decompression procedures with posterior fusion, and 2,261 combined anterior-posterior. Groups were statistically different with respect to age, length of hospital stay, mortality, and complications. Groups were statistically different for Deyo score except between posterior decompression only and combined approaches. Using multivariate analysis and adjusting for covariates, the combined (2.74[2.18-3.44]) and laminectomy (1.22[1.04-1.44]) cohorts had an increased risk of mortality when compared to anterior alone. These findings are the first to determine the rates and odds of perioperative risks directly related to combined anterior-posterior procedures. This study provides clinically useful data for surgeons to educate patients and direct future research to improve patient outcomes.

Global Sagittal Alignment Analysis Including Lower Extremities: Role of Pelvic Translation and the Lower Extremities in Compensation for Spinal Deformity

by Shian Liu, Barthelemy Liabaud, and Jean-charles Le Huec

The Spine Journal, 2014

Discrepancies in Preoperative Planning and Operative Execution in the Correction of Sagittal Spinal Deformities

by Shian Liu and Stephen Maier

The Spine Journal, 2014

Recruitment of Compensatory Mechanisms in Sagittal Spinal Malalignment is Age and Regional Deformity Dependent

Spine, 2015

Download

Likelihood of reaching minimal clinically important difference in adult spinal deformity: a comparison of operative and nonoperative treatment

The Ochsner journal, 2014

Download