Miyanji, Firoz MD, FRCSC; Newton, Peter O. MD; Samdani, Amer F. MD; Shah, Suken A. MD; Varghese, Ranjit A. MBBS, MS, MHSc (Epi); Reilly, Christopher W. MD, FRCSC; Mulpuri, Kishore MBBS, MS, MHSc (Epi) Study Design. Survey. Objective. The aim of this study was to evaluate the surgeon’s perspective on…...
Surgical treatment of Lenke 5 adolescent idiopathic scoliosis: Comparison of anterior vs posterior approach
Mark F Abel, Anuj Singla, Mark A Feger, Lindsay D Sauer, Wendy Novicoff AIM To compare the posterior vs anterior approaches for fusion of Lenke 5 adolescent idiopathic scoliosis curves, matched for curve magnitude and for the distal level of fixation (dLOF) standardized to the third lumbar vertebrae (L3). METHODS…...
Optimal Radiographical Criteria After Selective Thoracic Fusion for Patients With Adolescent Idiopathic Scoliosis With a C Lumbar Modifier: Does Adherence to Current Guidelines Predict Success?
Schulz, Jacob MD*; Asghar, Jahangir MD†; Bastrom, Tracey MA‡; Shufflebarger, Harry MD†; Newton, Peter O. MD‡; Sturm, Peter MD§; Betz, Randal R. MD¶; Samdani, Amer F. MD∥; Yaszay, Burt MD‡; Harms Study Group Study Design. Retrospective review of prospective data. Objective. To define optimal postoperative coronal parameters after selective thoracic…...
Should Postoperative Pulmonary Function Be a Criterion That Affects Upper Instrumented Vertebra Selection in Adolescent Idiopathic Scoliosis Surgery?
Demura, Satoru MD*; Bastrom, Tracey P. MA†; Schlechter, John DO‡; Yaszay, Burt MD†,§; Newton, Peter O. MD†,§; Harms Study Group Study Design. A multicenter, prospective evaluation of pulmonary function testing (PFT) and radiographical measures in patients surgically treated for adolescent idiopathic scoliosis (AIS). Objective. The objective of this study was…...
Is Decompensation Preoperatively a Risk in Lenke 1C Curves?
Demura, Satoru MD*,‡; Yaszay, Burt MD*,†; Bastrom, Tracey P. MA*; Carreau, Joseph MD†; Newton, Peter O. MD*,†; Harms Study Group Study Design. A review of a multicenter, prospective registry of patients surgically treated for adolescent idiopathic scoliosis. Objective. To investigate preoperative and postoperative distribution of coronal decompensation in Lenke 1C…...
Lenke 1C and 5C Spinal Deformities Fused Selectively: 5-Year Outcomes of the Uninstrumented Compensatory Curves
Ilgenfritz, Ryan M. MD*; Yaszay, Burt MD†; Bastrom, Tracey P. MA†; Newton, Peter O. MD†; Harms Study Group Study Design. Multicenter review of prospectively collected data. Objective. To analyze the natural history of uninstrumented compensatory curves prospectively during a 5-year postoperative period in patients with selectively fused Lenke type 1C…...
Surgical Treatment of Lenke 1 Main Thoracic Idiopathic Scoliosis: Results of a Prospective, Multicenter Study
Newton, Peter O. MD*; Marks, Michelle C. PT, MA*; Bastrom, Tracey P. MA*; Betz, Randal MD†; Clements, David MD‡; Lonner, Baron MD§; Crawford, Alvin MD¶; Shufflebarger, Harry MD‖; O’Brien, Michael MD; Yaszay, Burt MD*; Harms Study Group K. MD*; Yaszay, Burt MD†; Bastrom, Tracey P. MA†; Newton, Peter O. MD†;…...
Adding Thoracic Fusion Levels in Lenke 5 Curves: Risks and Benefits
Lark, Robert K. MD*; Yaszay, Burt MD†; Bastrom, Tracey P. MA†; Newton, Peter O. MD†; Harms Study Group Study Design. Multicenter; review of prospectively collected data. Objective. To determine the risks and potential benefits of nonselective versus selective fusion in a matched set of patients with Lenke 5 curves. Summary…...
Postoperative Changes in Spinal Rod Contour in Adolescent Idiopathic Scoliosis: An In Vivo Deformation Study
Cidambi, Krishna R. MD*; Glaser, Diana A. PhD†,‡; Bastrom, Tracey P. MA†; Nunn, Thomas N. BS†,‡; Ono, Takashi MD†; Newton, Peter O. MD*,†,‡ Study Design. Prospective case series. Objective. To evaluate the change in spinal rod contour from before implantation to after surgical correction of thoracic curves in patients with…...
A Method for Assessing Axial Vertebral Rotation Based on Differential Rod Curvature on the Lateral Radiograph
Liu, Raymond W. MD*; Yaszay, Burt MD†; Glaser, Diana PhD†,‡; Bastrom, Tracey P. MA†; Newton, Peter O. MD† Study Design. Bench-top and retrospective radiographical analyses to determine apical vertebral rotation based on differential rod curvature on the postoperative lateral radiograph. Objective. To develop a clinically relevant methodology for measuring apical…...