Browsing by Author "Schwab, Frank"
Now showing items 1-20 of 177
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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.
Jalai, Cyrus M; Passias, Peter G; Lafage, Virginie; Smith, Justin S; Lafage, Renaud; Poorman, Gregory W; Diebo, Bassel; ... (15 authors) (European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2016-08)<h4>Purpose</h4>Characteristics specific to cervical deformity (CD) concomitant with adult thoracolumbar deformity (TLD) remains uncertain, particularly regarding treatment. This study identifies cervical malalignment prevalence ... -
A Comprehensive Review of Complication Rates After Surgery for Adult Deformity: A Reference for Informed Consent.
Sciubba, Daniel M; Yurter, Alp; Smith, Justin S; Kelly, Michael P; Scheer, Justin K; Goodwin, C Rory; Lafage, Virginie; ... (14 authors) (Spine deformity, 2015-11)<h4>Objective</h4>An up-to-date review of recent literatures and a comprehensive reference for informed consent specific to ASD complications is lacking. The goal of the present study was to determine current complication ... -
A cost-effectiveness comparisons of adult spinal deformity surgery in the United States and Japan.
Yagi, Mitsuru; Ames, Christopher P; Keefe, Malla; Hosogane, Naobumi; Smith, Justin S; Shaffrey, Christopher I; Schwab, Frank; ... (12 authors) (European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2018-03)<h4>Purpose</h4>Information about the cost-effectiveness of surgical procedures for adult spinal deformity (ASD) is critical for providing appropriate treatments for these patients. The purposes of this study were to compare ... -
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.
Goldschmidt, Ezequiel; Angriman, Federico; Agarwal, Nitin; Trevisan, Marcos; Zhou, James; Chen, Katherine; Gerszten, Peter C; ... (26 authors) (Neurosurgery, 2020-03)Cervical alignment has become increasingly important in the planning of spine surgery. A relationship between the slope of T1 (T1S), the cervical lordosis (CL), and the overall cervical sagittal vertical axis (cSVA) has ... -
A Novel Tool for Deformity Surgery Planning: Determining the Magnitude of Lordotic Correction Required to Achieve a Desired Sagittal Vertical Axis.
Goldschmidt, Ezequiel; Angriman, Federico; Agarwal, Nitin; Zhou, James; Chen, Katherine; Tempel, Zachary J; Gerszten, Peter C; ... (26 authors) (World neurosurgery, 2017-08)<h4>Objective</h4>We sought to create a model capable of predicting the magnitude of pelvic incidence-lumbar lordosis (PI-LL) correction necessary to achieve a desired change in sagittal vertical axis (SVA).<h4>Methods</h4>A ... -
Adult Scoliosis Deformity Surgery: Comparison of Outcomes Between One Versus Two Attending Surgeons.
Gomez, Jaime A; Lafage, Virginie; Sciubba, Daniel M; Bess, Shay; Mundis, Gregory M; Liabaud, Barthelemy; Hanstein, Regina; ... (15 authors) (Spine, 2017-07)<h4>Study design</h4>Retrospective review of prospectively collected data.<h4>Objective</h4>Assess outcomes of adult spinal deformity (ASD) surgery performed by one versus two attending surgeons.<h4>Summary of background ... -
Adult Spinal Deformity Patients Recall Fewer Than 50% of the Risks Discussed in the Informed Consent Process Preoperatively and the Recall Rate Worsens Significantly in the Postoperative Period.
Saigal, Rajiv; Clark, Aaron J; Scheer, Justin K; Smith, Justin S; Bess, Shay; Mummaneni, Praveen V; McCarthy, Ian M; ... (14 authors) (Spine, 2015-07)<h4>Study design</h4>Recall of the informed consent process in patients undergoing adult spinal deformity surgery and their family members was investigated prospectively.<h4>Objective</h4>To quantify the percentage recall ... -
Adult Spinal Deformity Surgery Is Associated with Increased Productivity and Decreased Absenteeism From Work and School.
Durand, Wesley M; Babu, Jacob M; Hamilton, David K; Passias, Peter G; Kim, Han Jo; Protopsaltis, Themistocles; Lafage, Virginie; ... (26 authors) (Spine, 2022-02)<h4>Study design</h4>Retrospective cohort study.<h4>Objective</h4>We hypothesized that adult spinal deformity (ASD) surgery would be associated with improved work- and school-related productivity, as well as decreased rates ... -
Alterations in Magnitude and Shape of Thoracic Kyphosis Following Surgical Correction for Adult Spinal Deformity.
Lafage, Renaud; Song, Junho; Diebo, Bassel; Daniels, Alan H; Passias, Peter G; Ames, Christopher P; Bess, Shay; ... (20 authors) (Global spine journal, 2023-11)<h4>Study design</h4>Retrospective review of prospective multicenter data.<h4>Objectives</h4>This study aimed to investigate the shape of TK before and after fusion in ASD patients treated with long fusion.<h4>Methods</h4>ASD ... -
Are the Arbeitsgemeinschaft Für Osteosynthesefragen (AO) Principles for Long Bone Fractures Applicable to 3-Column Osteotomy to Reduce Rod Fracture Rates?
Virk, Sohrab; Lafage, Renaud; Bess, Shay; Shaffrey, Christopher; Kim, Han J; Ames, Christopher; Burton, Doug; ... (15 authors) (Clinical spine surgery, 2022-06)<h4>Objective</h4>The aim was to determine whether applying Arbeitsgemeinschaft für Osteosynthesefragen (AO) principles for external fixation of long bone fracture to patients with a 3-column osteotomy (3CO) would be associated ... -
Are we improving in the optimization of surgery for high-risk adult cervical spine deformity patients over time?
Passias, Peter G; Tretiakov, Peter S; Smith, Justin S; Lafage, Renaud; Diebo, Bassel; Scheer, Justin K; Eastlack, Robert K; ... (19 authors) (Journal of neurosurgery. Spine, 2023-07)<h4>Objective</h4>The aim of this study was to investigate whether surgery for high-risk patients is being optimized over time and if poor outcomes are being minimized.<h4>Methods</h4>Patients who underwent surgery for cervical ... -
Artificial Intelligence Based Hierarchical Clustering of Patient Types and Intervention Categories in Adult Spinal Deformity Surgery: Towards a New Classification Scheme that Predicts Quality and Value.
Ames, Christopher P; Smith, Justin S; Pellisé, Ferran; Kelly, Michael; Alanay, Ahmet; Acaroğlu, Emre; Pérez-Grueso, Francisco Javier Sánchez; ... (18 authors) (Spine, 2019-07)STUDY DESIGN:Retrospective review of prospectively-collected, multicenter adult spinal deformity (ASD) databases. OBJECTIVE:To apply artificial intelligence (AI)-based hierarchical clustering as a step toward a classification ... -
Artificial intelligence clustering of adult spinal deformity sagittal plane morphology predicts surgical characteristics, alignment, and outcomes.
Durand, Wesley M; Lafage, Renaud; Hamilton, D Kojo; Passias, Peter G; Kim, Han Jo; Protopsaltis, Themistocles; Lafage, Virginie; ... (25 authors) (European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2021-08)<h4>Purpose</h4>AI algorithms have shown promise in medical image analysis. Previous studies of ASD clusters have analyzed alignment metrics-this study sought to complement these efforts by analyzing images of sagittal anatomical ... -
Artificial Intelligence Models Predict Operative Versus Nonoperative Management of Patients with Adult Spinal Deformity with 86% Accuracy.
Durand, Wesley M; Daniels, Alan H; Hamilton, David K; Passias, Peter; Kim, Han Jo; Protopsaltis, Themistocles; LaFage, Virginie; ... (17 authors) (World neurosurgery, 2020-09)<h4>Objective</h4>Patients with ASD show complex and highly variable disease. The decision to manage patients operatively is largely subjective and varies based on surgeon training and experience. We sought to develop models ... -
Assessment of Impact of Long-Cassette Standing X-Rays on Surgical Planning for Cervical Pathology: An International Survey of Spine Surgeons.
Ramchandran, Subaraman; Smith, Justin S; Ailon, Tamir; Klineberg, Eric; Shaffrey, Christopher; Lafage, Virginie; Schwab, Frank; ... (17 authors) (Neurosurgery, 2016-05)<h4>Background</h4>Understanding the role of regional segments of the spine in maintaining global balance has garnered significant attention recently. Long-cassette radiographs (LCR) are necessary to evaluate global spinopelvic ... -
Assessment of Patient Outcomes and Proximal Junctional Failure Rate of Adult Spinal Deformity Patients Undergoing Caudal Extension of Previous Spinal Fusion.
Daniels, Alan H; Reid, Daniel BC; Durand, Wesley M; Line, Breton; Passias, Peter; Kim, Han Jo; Protopsaltis, Themistocles; ... (18 authors) (World neurosurgery, 2020-04-16)OBJECT:This case series examined patients undergoing caudal extension of prior fusion without alteration of the prior UIV to assess patient outcomes and rates of PJK/PJF. METHODS:Patients eligible for 2-year minimum follow-up ... -
Association between preoperative cervical sagittal deformity and inferior outcomes at 2-year follow-up in patients with adult thoracolumbar deformity: analysis of 182 patients.
Scheer, Justin K; Passias, Peter G; Sorocean, Alexandra M; Boniello, Anthony J; Mundis, Gregory M; Klineberg, Eric; Kim, Han Jo; ... (16 authors) (Journal of neurosurgery. Spine, 2016-01)<h4>Objective</h4>A high prevalence of cervical deformity (CD) has been identified among adult patients with thoracolumbar spinal deformity undergoing surgical treatment. The clinical impact of this is uncertain. This study ... -
At What Point Should the Thoracolumbar Region Be Addressed in Patients Undergoing Corrective Cervical Deformity Surgery?
Passias, Peter G; Pierce, Katherine E; Naessig, Sara; Ahmad, Waleed; Passfall, Lara; Lafage, Renaud; Lafage, Virginie; ... (21 authors) (Spine, 2021-10)<h4>Study design</h4>Retrospective cohort study.<h4>Objective</h4>The aim of this study was to investigate the impact of cervical to thoracolumbar ratios on poor outcomes in cervical deformity (CD) corrective surgery.<h4>Summary ... -
Author Correction: Sagittal age-adjusted score (SAAS) for adult spinal deformity (ASD) more effectively predicts surgical outcomes and proximal junctional kyphosis than previous classifications.
Lafage, Renaud; Smith, Justin S; Elysee, Jonathan; Passias, Peter; Bess, Shay; Klineberg, Eric; Kim, Han Jo; ... (15 authors) (Spine deformity, 2023-03)In Fig. 4 of this article signs for points associated in all 3 components are incorrect and should be reversed, e.g. + 2 should be − 2 and vise versa; Fig. 4 should have appeared as shown below. The original article has ... -
Baseline Frailty Status Influences Recovery Patterns and Outcomes Following Alignment Correction of Cervical Deformity.
Pierce, Katherine E; Passias, Peter G; Daniels, Alan H; Lafage, Renaud; Ahmad, Waleed; Naessig, Sara; Lafage, Virginie; ... (16 authors) (Neurosurgery, 2021-05)<h4>Background</h4>Frailty severity may be an important determinant for impaired recovery after cervical spine deformity (CD) corrective surgery.<h4>Objective</h4>To evaluate postop clinical recovery among CD patients between ...