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Spine Deformity

Matthew Hughes, Jason Bernard, Matthew Szarko
STUDY DESIGN: An in vitro biomechanical study into the effect of rib deconstruction on the flexibility in ovine ribs, using three-point bending. OBJECTIVE: To examine the feasibility and possible effectiveness of a more conservative costoplasty using an in vitro animal model. SUMMARY OF BACKGROUND DATA: Costoplasty remains useful in the treatment of adolescent idiopathic scoliosis, rib hump, and associated chest wall deformities. However, traditional costoplasty increases morbidity and blood loss...
March 2018: Spine Deformity
James D Lin, Lawrence G Lenke, Jamal N Shillingford, Joseph L Laratta, Lee A Tan, Charla R Fischer, Mark A Weller, Ronald A Lehman
STUDY DESIGN: Retrospective review of high-dose tranexamic acid (TXA) use in consecutive patients. OBJECTIVE: To determine the safety profile of a high-dose TXA protocol in complex adult spinal deformity patients. SUMMARY OF BACKGROUND DATA: Adult spinal deformity (ASD) surgery may involve significant amounts of blood loss, especially when various osteotomy techniques are used. Antifibrinolytic agents such as TXA have been used to reduce intraoperative blood loss...
March 2018: Spine Deformity
Han Jo Kim, Charles H Crawford, Charles Ledonio, Shay Bess, A Noelle Larson, Marilyn Gates, Matthew Oetgen, James O Sanders, Douglas Burton
STUDY DESIGN: Structured literature review. OBJECTIVES: The Scoliosis Research Society (SRS) requested an assessment of the current state of peer-reviewed evidence regarding pediatric lumbar spondylolisthesis with the goal of identifying what is known and what gaps remain in further understanding the diagnostic methods for pediatric spondylolisthesis. SUMMARY OF BACKGROUND DATA: Spondylolisthesis in the lumbar spine is common among children and adolescents and no formal synthesis of the published literature regarding diagnostic methods has been previously performed...
March 2018: Spine Deformity
Baron S Lonner, Stefan Parent, Suken A Shah, Paul Sponseller, Burt Yaszay, Amer F Samdani, Patrick J Cahill, Joshua M Pahys, Randal Betz, Yuan Ren, Harry L Shufflebarger, Peter O Newton
INTRODUCTION: Sagittal alignment abnormalities in Scheuermann kyphosis (SK) strongly correlate with quality of life measures. The changes in spinopelvic parameters after posterior spinal fusion have not been adequately studied. This study is to evaluate the reciprocal changes in spinopelvic parameters following surgical correction for SK. METHODS: Ninety-six operative SK patients (65% male; age 16 years) with minimum 2-year follow-up were identified in the prospective multicenter study...
March 2018: Spine Deformity
Masayuki Ohashi, Toru Hirano, Kei Watanabe, Keiichi Katsumi, Hirokazu Shoji, Tatsuki Mizouchi, Naoto Endo
STUDY DESIGN: A retrospective, long-term follow-up study. OBJECTIVE: We investigated the incidence and risk factors for osteopenia at a minimum of 20 years after spinal instrumented fusion for adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Surgically treated AIS patients may be likely to have osteopenia in adulthood because the association between AIS and osteopenia has been well documented. However, the long-term results of AIS surgery on BMD have not been evaluated...
March 2018: Spine Deformity
Woojin Cho, Michael J Faloon, David Essig, Gbolabo Sokunbi, Thomas Ross, Matthew Cunningham, Oheneba Boachie-Adjei
STUDY DESIGN: Retrospective chart and radiographic review. OBJECTIVE: The purpose of this study was to identify any additional risk factors adding-on after selective thoracic fusion in adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Previous studies have shown that the proper selection of lowest instrumented vertebra (LIV) is critical in preventing adding-on (AD) phenomenon after selective thoracic fusion (STF). However, even after selecting the correct LIV, AD can still occur...
March 2018: Spine Deformity
Sergio M Navarro, Prem N Ramkumar, Anthony C Egger, Ryan C Goodwin
OBJECTIVES: Increased surgeon and hospital volume has been associated with improved patient outcomes and cost effectiveness for adolescent idiopathic scoliosis (AIS). However, no evidence-based thresholds that clarify the volume at which these strata occur exist. The objective of this study was to establish statistically meaningful thresholds that define high-volume surgeons and hospitals performing spinal fusion for AIS from those that are low volume with respect to length of stay (LOS) and cost...
March 2018: Spine Deformity
Alexander A Theologis, Matthew Crawford, Mohammad Diab
STUDY DESIGN: Cohort analysis. OBJECTIVE: Document satisfaction with management and appearance concerns in children of different ethnicity who underwent spinal fusion/instrumentation for adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Scoliosis Research Society Questionnaire (SRS-30) outcomes in AIS indicate a link between appearance and satisfaction as well as ethnic variation in appearance domain. Exploration of these findings in the Scoliosis Appearance Questionnaire (SAQ) will allow better understanding of ethnic variation in appearance concerns...
March 2018: Spine Deformity
Charles C Edwards, Noah L Lessing, Lisa Ford, Charles C Edwards
STUDY DESIGN: Retrospective review of a prospectively collected database. OBJECTIVE: To assess the incidence of deep vein thrombosis (DVT) associated with single- versus multistage posterior-only complex spinal surgeries. SUMMARY OF BACKGROUND DATA: Dividing the physiologic burden of spinal deformity surgery into multiple stages has been suggested as a potential means of reducing perioperative complications. DVT is a worrisome complication owing to its potential to lead to pulmonary embolism...
March 2018: Spine Deformity
Lawrence L Haber, Erika D Womack, Madhankumar Sathyamoorthy, James A Moss, Michael Wade Shrader
BACKGROUND: Hypotensive events (HEs) following posterior spinal fusion (PSF) for adolescent idiopathic scoliosis (AIS) can lead to delayed neurologic postoperative deficits (DNPD). This study aimed to determine the incidence of HEs (mean arterial pressure [MAP] <60 mmHg) after PSF for AIS and identify predictors for HEs. METHODS: Medical records of 99 consecutive patients who had PSF for AIS were retrospectively reviewed (2011-2013). Perioperative data were collected...
March 2018: Spine Deformity
Joseph L Laratta, Jamal N Shillingford, Joseph M Lombardi, Rami G Alrabaa, Barlas Benkli, Charla Fischer, Lawrence G Lenke, Ronald A Lehman
STUDY DESIGN: Case series. OBJECTIVES: To determine the safety and feasibility of S2 alar-iliac (S2AI) screw placement under robotic guidance. SUMMARY OF BACKGROUND DATA: Similar to standard iliac fixation, S2AI screws aid in achieving fixation across the sacropelvic junction and decreasing S1 screw strain. Fortunately, the S2AI technique minimizes prominent instrumentation and the need for offset connectors to the fusion construct. Herein, we present an analysis of the largest series of robotic-guided S2AI screws in the literature without any significant author conflicts of interest with the robotics industry...
March 2018: Spine Deformity
Michael Vitale, Anas Minkara, Hiroko Matsumoto, Todd Albert, Richard Anderson, Peter Angevine, Aaron Buckland, Samuel Cho, Matthew Cunningham, Thomas Errico, Charla Fischer, Han Jo Kim, Ronald Lehman, Baron Lonner, Peter Passias, Themistocles Protopsaltis, Frank Schwab, Lawrence Lenke
STUDY DESIGN: Consensus-building using the Delphi and nominal group technique. OBJECTIVE: To establish best practice guidelines using formal techniques of consensus building among a group of experienced spinal deformity surgeons to avert wrong-level spinal deformity surgery. SUMMARY OF BACKGROUND DATA: Numerous previous studies have demonstrated that wrong-level spinal deformity occurs at a substantial rate, with more than half of all spine surgeons reporting direct or indirect experience operating on the wrong levels...
March 2018: Spine Deformity
Ludvig Vavruch, Daniel Forsberg, Nils Dahlström, Hans Tropp
STUDY DESIGN: Retrospective study. OBJECTIVES: To investigate parameters of axial vertebral deformation in patients with scoliosis compared to a control group, and to determine whether these parameters correlated with the severity of spine curvature, measured as the Cobb angle. SUMMARY OF BACKGROUND DATA: Adolescent idiopathic scoliosis (AIS) is the most common type of spinal deformity. Many studies have investigated vertebral deformation, in terms of wedging and pedicle deformations, but few studies have investigated actual structural changes within vertebrae...
March 2018: Spine Deformity
Juan P Sardi, Jorge E Camacho, Roberto C Diaz, Miguel E Berbeo
STUDY: Design: Diagnostic studies-concordance between diagnostic tests. OBJECTIVES: The purpose of this study was to develop a novel spinopelvic parameter (Berbeo-Sardi angle [BSA], the angle formed at the intersection of a line that connects the inferior margin of the sacroiliac joint to the midpoint of a horizontal line joining both femoral heads) measurable in anteroposterior radiographs that indirectly estimates pelvic retroversion and correlates with traditional measurements like pelvic tilt (PT)...
March 2018: Spine Deformity
Charles H Crawford, James O Sanders, Douglas C Burton
No abstract text is available yet for this article.
January 2018: Spine Deformity
Robert William Gaines
No abstract text is available yet for this article.
January 2018: Spine Deformity
Farhaan Altaf
No abstract text is available yet for this article.
January 2018: Spine Deformity
Daniel Y T Fong, Chun-Fan Lee, Jack C Y Cheng, Keith D K Luk
No abstract text is available yet for this article.
January 2018: Spine Deformity
Jeffrey L Gum, Lawrence G Lenke, Anand Mohapatra, Sam Q Sun, Michael P Kelly
STUDY DESIGN: Retrospective review. OBJECTIVES: To describe 3 cases of a posterior-only vertebral column resection (pVCR) for the treatment of spondyloptosis in the setting of prior spinal fusions. SUMMARY OF BACKGROUND DATA: Lumbosacral spondyloptosis is a rare spinal deformity with a number of surgical options, none of which demonstrate clear superiority. The use of an L5 vertebral column resection, via combined anterior and posterior approaches, to restore lumbosacral alignment has been described though is accompanied by high rates of neurological deficit...
January 2018: Spine Deformity
Leah Y Carreon, Michael P Kelly, Charles H Crawford, Christine R Baldus, Steven D Glassman, Christopher I Shaffrey, Keith H Bridwell
STUDY DESIGN: Longitudinal cohort. OBJECTIVES: To determine if the minimum clinically important difference (MCID) and substantial clinical benefit (SCB) thresholds for the Scoliosis Research Society-22R (SRS22R) domains in patients with degenerative lumbar scoliosis are similar to those in patients with adult spinal deformity (ASD) with fusions extending into the thoracic spine. SUMMARY OF BACKGROUND DATA: The MCID and SCB thresholds for the SRS22R domains in patients with ASD and adolescent idiopathic scoliosis have been reported...
January 2018: Spine Deformity
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