ISSG Abstracts

Total number of Presentations: 17 View All

 

2012 – Self Reported Functional Limitations Due to Lumbar Stiffness Correlate with Age and SRS-22 Scores Among Asymptomatic Volunteers

Summary : The Lumbar Stiffness Disability Index (LSDI) was developed to track functional effects of spine stiffness. Normative data from asymptomatic volunteers demonstrates few stiffness related limitations. Advancing age is associated with an increase in LSDI scores. A significant correlation exists between LSDI scores and SRS-22 pain and function subscales, suggesting that perceived impacts of lumbar stiffness are related to impacts of low back pain. Click to show more...

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Posted by on May 7, 2013 in 2012 Abstract, ISSG Abstracts, With Presentation | 0 comments

2012 – Functional Limitations Due to Lumbar Stiffness Correlate with Pain Related Disability Measures and Sagittal Imbalance Among Adult Spinal Deformity Patients

Summary : The Lumbar Stiffness Disability Index (LSDI) tracks functional effects of lumbar stiffness. Surgical adult deformity patients had higher LSDI scores than non-operative patients, and revision fusion patients had higher LSDI scores than primary fusion patients. LSDI scores correlated with other outcomes measures, as well as measures of sagittal imbalance. Click to show more Information Abstract Presentation AUTHORS : Hart, Robert A.1; Mummaneni, Praveen V.2; Hostin, Richard3;...

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Posted by on May 7, 2013 in 2012 Abstract, ISSG Abstracts, With Presentation | 0 comments

2012 – Acute Proximal Junctional Failure Following Posterior Spinal Fusion for Deformity: Risk Factors and Radiographic Analysis Comparing Thoracolumbar To Upper Thoracic Failures

  Click to show more Information Abstract Presentation AUTHORS: Hart RA1 Hostin R2, Bess S9, Line B9, Ames CP3, Kebaish K4, Burton DC5, Lafage V6, O’Brien MF1, Schwab FJ6, Shaffrey CI7, Smith JS7, Wood KB8 INSTITUTIONS: 1. Orthopaedic Surgery, Oregon Health Sciences University, Portland, OR, United States; 2. Orthopaedic Surgery, Baylor Scoliosis Center, Plano, TX, United States; 3. Neurological Surgery, University of California – San Francisco Medical Center, San...

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Posted by on May 6, 2013 in 2012 Abstract, ISSG Abstracts, With Presentation | 0 comments

2013 – Radiographic and clinical outcome comparing traditional Iliac fixation to the S2 Alar-Iliac (S2AI) technique in Adult Deformity patients fused to the Sacrum: A Multicenter Study

Summary: Retrospective study to compare the clinical and radiographic outcome of the S2AI and Iliac screw techniques for sacropelvic fixation in adult deformity patients fused to the sacrum. Click to show more Information Abstract Presentation AUTHORS: Kebaish, Khaled1; Hart, Robert A.2; Naef, Floreana1; Terran, Jamie S.3; Lafage, Virginie3; Buchowski, Jacob M.4; Bess, Shay 5; Ames, Christopher P.6; Klineberg, Eric7; Hostin, Richard8; Boachie-Adjei, Oheneba9; Schwab, Frank J.3; Gupta,...

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Posted by on May 2, 2013 in 2013 Abstract, ISSG Abstracts, Uncategorized | 0 comments

2013 – T1 slope minus cervical lordosis (T1S-CL), the cervical analog of PI-LL, defines cervical sagittal deformity in patients undergoing thoracolumbar osteotomy

Summary: Established parameters of cervical sagittal deformity (CSD) such as cervical kyphosis (CK) and C2-C7 plumbline (CPL) have been shown to undergo reciprocal change following correction of thoracolumbar deformity (TLD). We utilized the T1 Slope minus cervical lordosis (TS-CL), the cervical analog to PI-LL, to define cervical sagittal deformity after TLD three column osteotomy (3CO). Risk factors for the development of CSD included Instrumentation above T4 and pre-existing TS-CL mismatch as in concurrent cervical and thoracolumbar...

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Posted by on May 2, 2013 in 2013 Abstract, ISSG Abstracts, Uncategorized | 0 comments

2013 – Clinical Improvement Through Nonoperative Treatment of Adult Spinal Deformity: Who Is Likely to Benefit?

Introduction: While surgery has been shown on average to be superior to nonoperative (nonop) treatment for significant adult spinal deformity (ASD), nonop care remains a good option for many patients. Our objective was to determine the outcome and risk factors of ASD patients who elected for nonop care. Click to show more Information Abstract Presentation AUTHORS: Poorman, Caroline E.1; Slobodyanyuk, Kseniya1; Smith, Justin S.2; Protopsaltis, Themistocles S.1; Hostin, Richard3; Bess,...

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Posted by on May 2, 2013 in 2013 Abstract, ISSG Abstracts, Uncategorized | 0 comments

2013 – Revision surgery after three column osteotomy (3CO) in 335 adult spinal deformity (ASD) patients: inter-center variability and risk factors

Summary: The purpose of this study was to examine the incidence and inter-center variability of revision surgery within 1year following 3CO for ASD. This multicenter study identifies indications for revisions, under-correction of alignment, and pseudoarthrosis. Click to show more Information Abstract Presentation AUTHORS: Maier, Stephen P.1; Lafage, Virginie1; Smith, Justin S.2; Obeid, Ibrahim3; Mundis, Gregory M.4; Klineberg, Eric5; Kebaish, Khaled6; Hostin, Richard7; Hart, Robert...

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Posted by on May 2, 2013 in 2013 Abstract, ISSG Abstracts, Uncategorized | 0 comments

2013 – Complications and Inter-Center Variability of Three Column Osteotomies for Spinal Deformity Surgery: a Retrospective Review of 423 Patients

Summary: High rates of complications have been reported for three column osteotomies (3CO). The incidence of overall major complications was 58% following 3CO at eight different sites with 28% intraoperative and 45% postoperative. Major intra-operative blood loss over 4 liters was 24%. Two osteotomies, thoracic osteotomies, and having surgery at a low volume center were risk factors for more complications. Click to show more Information Abstract Presentation AUTHORS: Bianco,...

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Posted by on May 2, 2013 in 2013 Abstract, ISSG Abstracts, Uncategorized | 0 comments

2013 – Cervical Sagittal Deformity Develops after PJK in Adult Thoracolumbar Deformity Correction: Radiographic Analysis Utilizing a Novel Global Sagittal Parameter, the CTPA

Summary: Cervical deformity develops following proximal junctional kyphosis (PJK) in adults with long fusions to the upper thoracic spine. PJK was prevalent after thoracolumbar PSO in adult spinal deformity (ASD) patients. We introduce two novel global sagittal angular parameters, the Cervical-Thoracic Pelvic Angle (CTPA) and the T1 Pelvic angle (TPA), that define the relative proportion of cervical and thoracolumbar deformities. These global angular measures correlate strongly with established linear measures of deformity such as C2C7...

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Posted by on May 2, 2013 in 2013 Abstract, ISSG Abstracts, Uncategorized | Comments Off

2013 – Does T1 Pelvic Angle (TPA) effectively assess sagittal imbalance and can it predict sustainable correction?

Summary: It is well established that sagittal plane correction is associated with better quality of life among adult spinal deformity (ASD) patients, but optimal correction can be difficult to maintain. T1 pelvic angle (TPA) may offer a new, simplified way to measure global deformity. In ASD patients undergoing three-column osteotomy (3CO), optimal postoperative alignment was associated with less preoperative deformity but larger correction. Patients with deteriorations after successful corrections had worse postoperative alignment prior to...

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Posted by on May 2, 2013 in 2013 Abstract, ISSG Abstracts, Uncategorized | 0 comments