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List of works by Peter Gust Passias

A New Piece of the Puzzle to Understand Cervical Sagittal Alignment: Utilizing a Novel Angle δ to Describe the Relationship among T1 Vertebral Body Slope, Cervical Lordosis, and Cervical Sagittal Alignment

scientific article published on 01 March 2020

A Novel Tool for Deformity Surgery Planning: Determining the Magnitude of Lordotic Correction Required to Achieve a Desired Sagittal Vertical Axis

scientific article

A comparative analysis of the prevalence and characteristics of cervical malalignment in adults presenting with thoracolumbar spine deformity based on variations in treatment approach over 2 years

scientific article

Adult Scoliosis Deformity Surgery: Comparison of Outcomes Between 1 vs. 2 Attending Surgeons

scientific article

Analysis of Cervical Spine Injuries in Elderly Patients from 2001 to 2010 Using a Nationwide Database: Increasing Incidence, Overall Mortality, and Inpatient Hospital Charges

scientific article published on 02 August 2018

Analysis of Successful vs. Failed Radiographic Outcomes following Cervical Deformity Surgery.

scientific article published on 8 December 2017

Assessment of Surgical Treatment Strategies for Moderate to Severe Cervical Spinal Deformity Reveals Marked Variation in Approaches, Osteotomies, and Fusion Levels

scientific article

Association between preoperative cervical sagittal deformity and inferior outcomes at 2-year follow-up in patients with adult thoracolumbar deformity: analysis of 182 patients

scientific article

Baseline mental status predicts happy patients after operative or non-operative treatment of adult spinal deformity

scientific article published on 01 December 2018

Biomechanical Evaluation of the X-Stop Device for Surgical Treatment of Lumbar Spinal Stenosis

scientific article published on October 1, 2012

Body mass index predicts risk of complications in lumbar spine surgery based on surgical invasiveness

scientific article

Cervical Alignment Changes in Patients Developing Proximal Junctional Kyphosis Following Surgical Correction of Adult Spinal Deformity.

scientific article published on 12 October 2017

Cervical compensatory alignment changes following correction of adult thoracic deformity: a multicenter experience in 57 patients with a 2-year follow-up

scientific article

Characterizing Adult Cervical Deformity and Disability Based on Existing Cervical and Adult Deformity Classification Schemes at Presentation and Following Correction.

scientific article

Comparative Analysis of Peri-operative Outcomes Using Nationally Derived Hospital Discharge Data Relative to a Prospective Multi-center Surgical Database of Adult Spinal Deformity Surgery

scientific article

Comparative Safety of Simultaneous and Staged Anterior and Posterior Spinal Surgery

scientific article published on February 1, 2012

Comparison of Best Versus Worst Clinical Outcomes for Adult Cervical Deformity Surgery.

scientific article

Cost-Utility Analysis of rhBMP-2 Use in Adult Spinal Deformity Surgery

scientific article published on 21 February 2020

Cost-utility analysis of cervical deformity surgeries using 1-year outcome.

scientific article published on 27 February 2018

Cost-utility of revisions for cervical deformity correction warrants minimization of reoperations

scientific article published on 01 December 2018

Declining usage of rhBMP-2 in lumbar fusions for adult spinal deformity since 2008.

scientific article published on 30 October 2017

Dedicated Spine Measurement Software Quantifies Key Spino-Pelvic Parameters More Reliably Than Traditional Picture Archiving and Communication Systems Tools

scientific article

Development of a Modified Cervical Deformity Frailty Index: A Streamlined Clinical Tool for Preoperative Risk Stratification

scientific article published on 01 February 2019

Development of a Novel Cervical Deformity Surgical Invasiveness Index

scientific article published on 01 January 2020

Development of a validated computer-based preoperative predictive model for pseudarthrosis with 91% accuracy in 336 adult spinal deformity patients

scientific article published on 01 November 2018

Does Patient Frailty Status Influence Recovery Following Spinal Fusion for Adult Spinal Deformity?: An Analysis of Patients With 3-Year Follow-up

scientific article published on 01 April 2020

Does atlantoaxial dislocation influence the subaxial cervical spine?

scientific article published on April 23, 2013

Durability of Satisfactory Functional Outcomes Following Surgical Adult Spinal Deformity Correction: A 3-Year Survivorship Analysis.

scientific article

Effect of Obesity on Radiographic Alignment and Short-Term Complications After Surgical Treatment of Adult Cervical Deformity

scientific article published on 18 February 2019

Effect of liberal blood transfusion on clinical outcomes and cost in spine surgery patients.

scientific article published on 27 April 2017

Evolution in Surgical Approach, Complications, and Outcomes in an Adult Spinal Deformity Surgery Multicenter Study Group Patient Population

scientific article published on 01 May 2019

Fatty infiltration of the cervical extensor musculature, cervical sagittal balance, and clinical outcomes: An analysis of operative adult cervical deformity patients

scientific article published on 08 January 2020

Full-Body Analysis of Age-Adjusted Alignment in Adult Spinal Deformity Patients and Lower-Limb Compensation.

scientific article published on 23 August 2016

Global spinal deformity from the upper cervical perspective. What is "Abnormal" in the upper cervical spine?

scientific article published on 01 July 2019

Grading of Complications After Cervical Deformity-corrective Surgery: Are Existing Classification Systems Applicable?

scientific article published on 01 July 2019

Hospital Readmission Within 2 Years Following Adult Thoracolumbar Spinal Deformity Surgery: Prevalence, Predictors, and Effect on Patient-derived Outcome Measures

scientific article

How Does Lumbar Degenerative Disc Disease Affect the Disc Deformation at the Cephalic Levels In Vivo?

scientific article published on April 20, 2011

Identifying Thoracic Compensation and Predicting Reciprocal Thoracic Kyphosis and PJK in Adult Spinal Deformity Surgery

article published in 2018

Impact of Smoking on 30-day Morbidity and Mortality in Adult Spinal Deformity Surgery

scientific article

Improvement in Back and Leg Pain and Disability Following Adult Spinal Deformity Surgery: Study of 324 Patients With 2-year Follow-up and the Impact of Surgery on Patient-reported Outcomes

scientific article published on 01 February 2019

Incidence of Acute, Progressive, and Delayed Proximal Junctional Kyphosis Over an 8-Year Period in Adult Spinal Deformity Patients

scientific article published on 01 January 2020

Incidence of perioperative medical complications and mortality among elderly patients undergoing surgery for spinal deformity: analysis of 3519 patients

scientific article

Incidence, Risk Factors, and Mortality of Reintubation in Adult Spinal Deformity Surgery

scientific article published on 27 June 2016

Indicators for Nonroutine Discharge Following Cervical Deformity-Corrective Surgery: Radiographic, Surgical, and Patient-Related Factors

scientific article published on 01 September 2019

Inpatient morbidity and mortality after adult spinal deformity surgery in teaching versus nonteaching hospitals

scientific article

Intraoperative alignment goals for distinctive sagittal morphotypes of severe cervical deformity to achieve optimal improvements in health-related quality of life measures

scientific article published on 21 March 2020

Limited morbidity and possible radiographic benefit of C2 vs. subaxial cervical upper-most instrumented vertebrae

scientific article published on 01 June 2019

Lumbosacral stress and age may contribute to increased pelvic incidence: an analysis of 1625 adults

scientific article

Magnitude of preoperative cervical lordotic compensation and C2-T3 angle are correlated to increased risk of postoperative sagittal spinal pelvic malalignment in adult thoracolumbar deformity patients at 2-year follow-up

scientific article

Morbidity of Adult Spinal Deformity Surgery in Elderly Has Declined Over Time

scientific article published on 4 January 2017

Novel Angular Measures of Cervical Deformity Account for Upper Cervical Compensation and Sagittal Alignment

scientific article

Outcomes of Operative Treatment for Adult Cervical Deformity: A Prospective Multicenter Assessment With 1-Year Follow-up

scientific article

Outcomes of open staged corrective surgery in the setting of adult spinal deformity

scientific article published on 21 March 2017

Patient Satisfaction After Adult Spinal Deformity Surgery Does Not Strongly Correlate With Health-Related Quality of Life Scores, Radiographic Parameters, or Occurrence of Complications.

scientific article

Patient profiling can identify patients with adult spinal deformity (ASD) at risk for conversion from non-operative to surgical treatment: initial steps to reduce ineffective ASD management

scientific article

Postoperative cervical deformity in 215 thoracolumbar patients with adult spinal deformity: prevalence, risk factors, and impact on patient-reported outcome and satisfaction at 2-year follow-up

scientific article

Predicting extended operative time and length of inpatient stay in cervical deformity corrective surgery

scientific article published on 08 August 2019

Predicting the Occurrence of Postoperative Distal Junctional Kyphosis in Cervical Deformity Patients

scientific article published on 01 January 2020

Predicting the combined occurrence of poor clinical and radiographic outcomes following cervical deformity corrective surgery

scientific article published on 01 November 2019

Predictive Factors for Percutaneous Endoscopic Gastrostomy Tube Placement After Anterior Cervical Fusion.

scientific article published on 18 December 2017

Predictive modeling of length of hospital stay following adult spinal deformity correction: Analysis of 653 patients with an accuracy of 75% within 2 days.

scientific article published on 17 April 2018

Predictors of Revision Surgical Procedure Excluding Wound Complications in Adult Spinal Deformity and Impact on Patient-Reported Outcomes and Satisfaction: A Two-Year Follow-up

scientific article

Predictors of adverse discharge disposition in adult spinal deformity and associated costs

scientific article published on 9 April 2018

Probability of Severe Frailty Development among Operative and Non-Operative Adult Spinal Deformity Patients: An Actuarial Survivorship Analysis over a 3-year Period

scientific article published on 20 April 2020

Prolonged length of stay after posterior surgery for cervical spondylotic myelopathy in patients over 65years of age.

scientific article

Prospective Multicenter Assessment of All-Cause Mortality Following Surgery for Adult Cervical Deformity.

scientific article published on 17 January 2018

Prospective Multicenter Assessment of Early Complication Rates Associated With Adult Cervical Deformity Surgery in 78 Patients

scientific article

Radiological lumbar stenosis severity predicts worsening sagittal malalignment on full-body standing stereoradiographs.

scientific article published on 17 May 2017

Ratio of lumbar 3-column osteotomy closure: patient-specific deformity characteristics and level of resection impact correction of truncal versus pelvic compensation

scientific article

Reciprocal Changes in Cervical Alignment After Thoracolumbar Arthrodesis for Adult Spinal Deformity

scientific article published on 01 November 2019

Recovery Kinetics of Radiographic and Implant-Related Revision Patients Following Adult Spinal Deformity Surgery.

scientific article

Recovery Kinetics: Comparison of Patients undergoing Primary or Revision Procedures for Adult Cervical Deformity Using a Novel Area Under the Curve Methodology

article

Recovery kinetics following spinal deformity correction: a comparison of isolated cervical, thoracolumbar, and combined deformity morphometries

scientific article published on 28 March 2019

Relationship Between the Alignment of the Occipitoaxial and Subaxial Cervical Spine in Patients With Congenital Atlantoxial Dislocations

scientific article published on February 1, 2013

Relationship between body mass index and sagittal vertical axis change as well as health-related quality of life in 564 patients after deformity surgery

scientific article published on 09 August 2019

Rod Fracture After Apparently Solid Radiographic Fusion in Adult Spinal Deformity Patients

article

Scoring system to triage patients for spine surgery in the setting of limited resources: Application to the COVID-19 pandemic and beyond

scientific article published on 29 May 2020

Segmental Lumbar Rotation in Patients with Discogenic Low Back Pain During Functional Weight-Bearing Activities

scientific article published on January 5, 2011

Surgical treatment of low-grade isthmic spondylolisthesis with transsacral fibular strut grafts

scientific article published on March 1, 2012

Tethered Cord Syndrome in the United States Cluster Analysis of Presenting Anomalies and Associated

scientific article published on 01 September 2020

The Fate of Patients with Adult Spinal Deformity Incurring Rod Fracture After Thoracolumbar Fusion

scientific article

The Health Impact of Adult Cervical Deformity in Patients Presenting for Surgical Treatment: Comparison to United States Population Norms and Chronic Disease States Based on the EuroQuol-5 Dimensions Questionnaire

scientific article

The Influence of Surgical Intervention and Sagittal Alignment on Frailty in Adult Cervical Deformity

scientific article published on 08 November 2019

The Lumbar Pelvic Angle (LPA), the Lumbar Component of the T1 Pelvic Angle, Correlates with HRQOL, PI-LL Mismatch and it Predicts Global Alignment

scientific article

The Reversibility of Swan Neck Deformity in Chronic Atlantoaxial Dislocations

scientific article published on April 1, 2013

The benefit of nonoperative treatment for adult spinal deformity: identifying predictors for reaching a minimal clinically important difference

scientific article

The effect of July admission on inpatient morbidity and mortality after adult spinal deformity surgery.

scientific article published on 8 January 2016

The impact of obesity on compensatory mechanisms in response to progressive sagittal malalignment

scientific article published on December 2016

The impact of osteotomy grade and location on regional and global alignment following cervical deformity surgery

scientific article published on 01 July 2019

The morphology of cervical deformities: a two-step cluster analysis to identify cervical deformity patterns

scientific article published on 15 November 2019

The use of patient-reported preoperative activity levels as a stratification tool for short-term and long-term outcomes in patients with adult spinal deformity.

scientific article published on 6 April 2018

Thoracolumbar Realignment Surgery Results in Simultaneous Reciprocal Changes in Lower Extremities and Cervical Spine.

scientific article

Three types of sagittal alignment regarding compensation in asymptomatic adults: the contribution of the spine and lower limbs

scientific article published on 6 June 2017

Three-column osteotomy for correction of cervical and cervicothoracic deformities: alignment changes and early complications in a multicenter prospective series of 23 patients

scientific article

Timing of Complications Occurring Within 30 Days After Adult Spinal Deformity Surgery.

scientific article

Upper-thoracic versus lower-thoracic upper instrumented vertebra in adult spinal deformity patients undergoing fusion to the pelvis: surgical decision-making and patient outcomes

scientific article published on 20 December 2019

Younger Patients Are Differentially Affected by Stiffness-Related Disability Following Adult Spinal Deformity Surgery

scientific article published on 31 August 2019