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All Publications

Clinically Significant Differences Exist Between Curves in Operative Idiopathic Early-Onset Scoliosis and Adolescent Idiopathic Scoliosis

McElroy, Mark J. MS*; Sponseller, Paul D. MD*; Fuhrhop, Sara K. BS*; Russell, Colin J.*; Newton, Peter O. MD†,‡; Marks, Michelle C. MA, PT†; Sanders, James O. MD§; Yazici, Muharrem MD¶; Pawelek, Jeff B. BS‖; Akbarnia, Behrooz A. MD‡,‖; the Harms Study Group, and the Growing Spine Study Group Study…...

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Effect of Spinal Deformity on Adolescent Quality of Life: Comparison of Operative Scheuermann Kyphosis, Adolescent Idiopathic Scoliosis, and Normal Controls

Lonner, Baron MD*; Yoo, Andrew BA*; Terran, Jamie S. BS*; Sponseller, Paul MD†; Samdani, Amer MD‡; Betz, Randy MD‡; Shuffelbarger, Harry MD§; Shah, Suken A. MD¶; Newton, Peter MD‖ Study Design. A prospective multicenter study and retrospective chart review. Objective. To compare health-related quality of life (HRQOL) measures and sagittal…...

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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…...

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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…...

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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†;…...

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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…...

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Defining 2 Components of Shoulder Imbalance: Clavicle Tilt and Trapezial Prominence

Ono, Takashi MD*; Bastrom, Tracey P. MA†; Newton, Peter O. MD† Study Design. A single-center prospective case series. Objective. To examine 2 features of shoulder asymmetry (clavicle tilt and trapezial prominence) and their correlation with radiographical parameters. Summary of Background Data. Shoulder imbalance is one of the more notable aspects…...

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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…...

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Spinal Deformity Correction in Marfan Syndrome Versus Adolescent Idiopathic Scoliosis: Learning From the Differences

Gjolaj, Joseph P. MD*; Sponseller, Paul D. MD*; Shah, Suken A. MD†; Newton, Peter O. MD‡; Flynn, John M. MD§; Neubauer, Philip R. MD*; Marks, Michelle C. MA, PT‡; Bastrom, Tracey P. MA‡,¶ Study Design. Retrospective case control study. Objective. To compare patients with Marfan syndrome and matched patients with…...

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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…...

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