Moderator: Saeed Khayatzadeh, PhD
289. Optimizing lateral sagittal correction and anterior-posterior interbody loading: in vitro biomechanical assessment of effect of implant lordosis and height on endplate loading and segmental lordosis
Heidi M. Hullinger, MD1; Jonathan Harris2; Mir Hussain2; Noelle Klocke, MS2; Rex A. Marco, MD3; Brandon Bucklen, PhD2
1New Jersey Spine Specialists, Summit, NJ/Rutgers University, Newark, NJ, Summit, NJ, US; 2Globus Medical, Audubon, PA, US; 3Houston Methodist Orthopedics & Sports Medicine, Houston, TX, US
FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.
290. Blood transfusions: does storage duration affect postoperative infection risk?
Peter P. Hsiue, MD1; Chad Ishmael, MD2; Sam I. Uweh, BS3; Clark J. Chen, BS4; Kellyn R. Hori, BS3; Howard Y. Park, MD5; Zachary Burke, MD3; Nicholas Bernthal, MD6
1UCLA Department of Orthopaedic Surgery, Los Angeles, CA, US; 2University of California Los Angeles, Los Angeles, CA, US; 3Los Angeles, CA, US; 4University of California, Los Angeles, Los Angeles, CA, US; 5UCLA Medical Center, Dept of Orthopaedic Surgery, Los Angeles, CA, US; 6UCLA, Santa Monica, CA, US
FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.
291. Influence of lumbar lordosis on posterior rod strain in long-segment pedicle screw and rod instrumentation with anterior column realignment: cadaveric study
Bernardo De Andrada Pereira, MD1; Jakub Godzik, MD1; Jennifer Lehrman, MS2; Anna G. Newcomb, MS3; Randall J. Hlubek, MD2; Brian Kelly, PhD2; Jay D. Turner, MD, PhD4
1Phoenix, AZ, US; 2Barrow Neurological Institute, Phoenix, AZ, US; 3St. Joseph's Hospital and Medical Center, Phoenix, AZ, US; 4Barrow Brain and Spine, Phoenix, AZ, US
FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.
292. Are precontoured spinal rods mechanically superior to manually contoured rods?
Kenneth A. Shaw, DO1; Dennis Devito, MD2; Joshua Murphy, MD2
1Dwight D. Eisenhower Army Medical Center, Fort Gordon, GA, US; 2Children's Orthopedics of Atlanta, Atlanta, GA, US
FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.
293. Biomechanical assessment of pedicle screw fixation strength in non-osteoporotic and osteoporotic pedicles: comparison of straight dual-lead versus single- to dual-lead threadforms
Amy Claeson, PhD1; Anup Gandhi, PhD1; Amir A. Mehbod, MD2
1Zimmer Biomet, Westminster, CO, US; 2Twin Cities Spine Center, Minneapolis, MN, US
FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.
294. Coupled rotation patterns in cervical axial rotation can change when the head is kept level
Muturi Muriuki, PhD1; Robert M. Havey, MS2; Kenneth R. Blank, MS, MHA3; Ryan Hofler, MD, MS4; G. Alexander Jones, MD4; Avinash G. Patwardhan, PhD5
1Forest Park, IL, US; 2Edward Hines Jr. VA Hospital, Hines, IL, US; 3Tinley Park, IL, US; 4Loyola University Medical Center, Maywood, IL, US; 5Loyola University Medical Center Dept. of Orthopaedic Surgery, Maywood, IL, US
FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.
295. Comparison of the biomechanical performances among PLF, TLIF, OLIF, and XLIF: a finite element analysis
Teng Lu, MD; Yi Lu, MD, PhD
Brigham and Womens' Hospital, Boston, MA, US
FDA Device/Drug Status: XLIF (Approved for this indication), OLIF (Approved for this indication)
Discussion