OTA 2006 Posters - Basic Science

Scientific Poster #30 Basic Science/Reconstruction

·Clinical Outcomes for Long-Bone Nonunions Implanted with Bone Morphogenetic Protein
Clifford B. Jones, MD; James R. Ringler, MD; Terrence J. Endres, MD
(all authors - a-Medtronic and Stryker)
Michigan State University, Orthopaedic Associates of Grand Rapids,
Grand Rapids, Michigan, USA
Scientific Poster #63 Basic Science

The Accuracy and Repeatability of a Novel Gait Analysis Device
Michael J. Gardner, MD (n); Joseph U. Barker, MD (n);
Sherry I. Backus, MA, PT (n); Demetris Demetrakopoulos, BS (n);
David L. Helfet, MD (n); Joseph M. Lane, MD (n); Dean G. Lorich, MD (n);
Hospital for Special Surgery, New York, New York, USA
Scientific Poster #64 Basic Science

A Mechanical Evaluation of Two Fixation Methods for Coronal Fractures of the Lateral Condyle of the Distal Femur (OTA Type 33B3)
Gregg J. Jarit, MD (n); Frederick J. Kummer, MD (n);
Marc J. Gibber, BA (n); Kenneth A. Egol, MD (n);
New York University­Hospital for Joint Diseases, New York, New York, USA
Scientific Poster #65 Basic Science

Transfixion Wire Variables
Valentin Antoci, MD, PhD (n); Michael Voor, PhD (n);
Valentin Antoci, Jr. (n); Craig Roberts, MD (n);
University of Louisville, Louisville, Kentucky, USA
Scientific Poster #66 Basic Science

Fullerene: A Potential Carrier Molecule for Preventing Biomaterial Related Infections in Orthopaedic Surgery
Holly Tyler, BS (n); Faith Coldren, BS (n); Barnaby Dedmond, MD (n); Lawrence Webb, MD (n); Beth Smith, PhD (n); Tom Smith, PhD (n);
William Wagner, PhD (n); David Carroll, PhD (n);
Wake Forest University School of Medicine,
Winston-Salem, North Carolina, USA
Scientific Poster #67 Basic Science

The "Z-Effect" Phenomenon: A Laboratory Model
Eric Strauss, MD (n); Frederick Kummer, PhD (n);
Kenneth Koval, MD (n); Kenneth Egol, MD (n);
Department of Orthopaedic Surgery, NYU-Hospital for Joint Diseases,
New York, New York, USA
Scientific Poster #68 Basic Science

Is There a Difference Between Locked Intramedullary Nails and Locked Plates for Distal Metaphyseal Tibia and Tibia-Fibula Fractures? A Laboratory Evaluation
Eric J. Strauss, MD (n); Daniel Alfonso, MD (n),
Kenneth Egol, MD (n); Nirmal Tejwani MD (n);
Department of Orthopaedic Surgery, NYU-Hospital for Joint Diseases,
New York, New York, USA
Scientific Poster #69 Basic Science

Imaging Techniques for Talar Neck Malunion: A Comparison of Radiographs, Computed Tomography, and Radiostereometric Analysis
Gladys Chan, MD; David Sanders, MD, MSc, FRCSC (a-Synthes Canada, a-Lawson Health Research Institute); XunHua Yuan, PhD (n);
Kevin Willits, MD, MSc, FRCSC (n); Richard Jenkinson, MD (n);
Victoria Hospital, London Health Sciences Centre, London, Ontario, Canada
Scientific Poster #70 Basic Science

The Anatomic Periarticular Plate: An Oxymoron
Kanu Goyal, BS (*); Anthony F. Skalak, MD (*);
Yohannes Haile-Selassie, PhD (*); Randall E. Marcus, MD (*);
Heather Vallier, MD (*); Daniel R. Cooperman, MD (*);
Cleveland Museum of Natural History, MetroHealth Medical Center, University Hospitals of Cleveland, Cleveland, Ohio, USA
Scientific Poster #71 Basic Science

A Comparison of Percutaneous Locked versus Traditional Open Plate Fixation in a Subtrochanteric Fracture Gap Model
Brett D. Crist, MD1 (a-Synthes); Mark A. Lee, MD2 (a-Synthes);
Afshin K. Khalafi, MD2 (a-Synthes); Scott J. Hazelwood, PhD2 (a-Synthes);
1University of Missouri, Department of Orthopaedic Surgery, Columbia, Missouri, USA;
2University of California Davis Medical Center, Sacramento, California, USA
Scientific Poster #72 Basic Science

A Biomechanical Comparison of Locked and Unlocked Plating
in a Cadaveric Short-Segment Comminuted Proximal Radius
Fracture Model
Scott G. Kaar, MD (a-AO Foundation);
Aaron S. Weaver, MS (a-AO Foundation);
Madhav A. Karunakar, MD (a-AO Foundation);
Steven A. Goldstein, PhD (a-AO Foundation);
Elizabeth P. Frankenburg, MS (a-AO Foundation);
Orthopaedic Research Laboratory, Department of Orthopaedic Surgery,
The University of Michigan, Ann Arbor, Michigan, USA
Scientific Poster #73 Basic Science

Evaluation of Pressure Drop in Induced Compartment Syndrome
after Treatment with Standard Fasciotomy or Pie Crusting:
A Cadaveric Study
Mark J. Anders, MD (n); Dov A. Bader, MD (n); Matthew J. Harris (n); William M. Mihalko, MD (n);
University at Buffalo, State University of New York, Buffalo, New York, USA
Scientific Poster #74 Basic Science

Ideal Tibial Intramedullary Nail Insertion Point Varies with Tibial Rotation
Richard Walker, MD (n); Michael D. McKee, MD (n);
James P. Waddell, MD (n); Emil H. Schemitsch, MD (n);
St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
Scientific Poster #75 Basic Science

MicroCT Evaluation of Segmental Fracture Healing in Rabbits
Ru Li, MD (n); Herbert vonSchroeder, MD (n); Duncan J. Stewart, MD (n); Emil H. Schemitsch, MD (n);
St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
Scientific Poster #76 Basic Science

· Comparison of a Three-Screw Proximally Configured Femoral Intramedullary Nail with a Reconstruction Nail in a Subtrochanteric Fracture Model
Brian Fissel, MD (a-Depuy); Berton R. Moed, MD (a-Depuy); J. Gary Bledsoe, PhD (a-Depuy);
Saint Louis University School of Medicine, St. Louis, Missouri, USA
Scientific Poster #77 Basic Science

Effect of Cell-Based VEGF Gene Therapy on Healing of a Critical-Sized Bone Defect
Ru Li, MD (n); Duncan J. Stewart, MD (n);
Herbert vonSchroeder, MD (n); Emil H. Schemitsch, MD (n);
St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
Scientific Poster #78 Basic Science

Can Fibroblast Cells Be Used to Deliver the VEGF Gene to Promote Fracture Healing?
Ru Li, MD (n); Duncan J. Stewart, MD (n); Herbert vonSchroeder, MD (n);
Emil H. Schemitsch, MD (n);
St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
Scientific Poster #79 Basic Science

Influence of Cell Based VEGF Transfer on Rabbit Osteoblasts in vitro
Claire Li, Student (n); Ru Li, MD (n); James Waddell, MD (n);
Emil Schemitsch, MD (n)
St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
Scientific Poster #80 Basic Science

Gluteus Medius Tendon Injury during Reaming Using a Modified Medial Trochanteric Portal: A Cadaveric Study
Edward A. Perez, MD (n); Amir A. Jahangir, MD (n);
Rakesh Mashru, MD (n); Thomas A. Russell, MD (n);
University of Tennessee, Campbell Clinic, Memphis, Tennessee, USA
Scientific Poster #81 Basic Science

Time-Dependent Contamination of Opened Sterile Trays
David J. Dalstrom, MD (n); Indresh Venkatarayappa, MD (n);
Alison L. Manternach, RN, MSA (n); Marilyn S. Palcic, PA-C (n);
Beth A. Heyse, RN (n); Michael J. Prayson, MD (n);
Wright State University and Miami Valley Hospital, Dayton, Ohio, USA
Scientific Poster #82 Basic Science

Increased Amount, Strength, and Stiffness of Restored Bone Using an Injectable, Slower-Resorbing, CaSo4 Cement Compared to Conventional CaSo4 Pellets
Robert M. Urban (-Wright); Thomas M. Turner, DVM (b-Wright);
Deborah J. Hall (n); Nozomu Inoue, MD (n); Steven Gitelis, MD (n)
Rush University Medical Center, Chicago, Illinois, USA
Scientific Poster #83 Basic Science

Long Bone Fracture Reduction Using Fluoroscopic-Based Computerized Navigation System (FBCNS): Feasibility and Accuracy Study
Yoram Weil, MD1 (n); Meir Liebergall, MD2 (n); Rami Mosheiff MD2 (n); David L. Helfet, MD1,2 (n); Andrew D. Pearle, MD1 (n);
1The Hospital for Special Surgery, New York, New York, USA;
2The Hadassah Hebrew University Hospital, Jerusalem, Israel
Scientific Poster #84 Basic Science

Biomechanical Evaluation of Locking Plate Fixation in a Sawbones Radius Model
Jason W. Roberts, MD (a-Synthes); Brandon Rebholz, BS (n);
Mei Wang, PhD (n); Steven I. Grindel, MD (a-Synthes);
Medical College of Wisconsin, Department of Orthopaedic Surgery, Milwaukee, Wisconsin, USA
Scientific Poster #85 Basic Science

Biomechanical Analysis of Cross-Threaded Locking Screws
John Boudreau, MD (a-Stryker, Synthes);
Robert O'Toole, MD (a,e-Stryker, a-Synthes);
Oleg Vesnovsky, PhD (a-Stryker, Synthes);
Tim Topoleski, PhD (a-Stryker, Synthes);
Marcus Sciadini, MD (a,e-Stryker, a-Synthes);
R. Adams Crowley Shock Trauma Center, University of Maryland
School of Medicine, Baltimore, Maryland, USA
Scientific Poster #86 Basic Science

The Effects of Intermittent Axial Compression on Bone Healing
Michael J. Gardner, MD (a-OREF);
Marjolein C. H. van der Meulen, PhD (a-NIH);
Demetris Demetrakopoulos, BS (*); Timothy M. Wright, PhD (a-NIH);
Elizabeth R. Myers, PhD (a-NIH);
Mathias P. Bostrom, MD (a-Oxnard Foundation);
Hospital for Special Surgery, New York, New York, USA
Scientific Poster #87 Basic Science

Locked versus Conventional Plating in a Bridge Plate Model
Robert T. Sullivan, Major, USAF, MC (a-Synthes);
Meredith Warner, Major, USAF, MC (*);
Patrick S. Brannan, Captain, USAF, MC (*);
Tristan Lai, Second Lieutenant, USAF (*);
Mark S. Richardson, Colonel, USAF, MC (*);
Wilford Hall Medical Center, San Antonio, Texas, USA
Scientific Poster #88 Basic Science

· · Can a Single High-Energy Impact Load Cause Development of Posttraumatic Osteoarthrosis?
Joseph Borrelli, Jr, MD (*); Melissa Zaegel (*); Matthew Silva, PhD (*); Linda Sandell, PhD (*); Washington University School of Medicine, St. Louis, Missouri, USA
Scientific Poster #89 Basic Science

Patient-Specific Modeling of Increased Contact Stress Exposure following Intra-Articular Fracture of the Ankle
Jane Goldsworthy, BSE (*); Donald D. Anderson, PhD (*);
Thad Thomas, BSE (*); Valerie L. Muehling, MS (*);
J. Lawrence Marsh, MD (*); Thomas Brown, PhD (*);
University of Iowa University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
Scientific Poster #90 Basic Science

Performance Analysis and Morphology of Unused versus Reprocessed Drill Bits
Saqib Rehman, MD (a-Alliance Med Corp, Synthes USA); Kurosh Darvish, PhD (a-Alliance Med Corp, Synthes USA); Mehdi Shafieian (n); Kristofer Matullo, MD (n); William G. DeLong, MD (a-AO North America)
Temple University Hospital, Philadelphia, Pennsylvania, USA
Scientific Poster #91 Basic Science

Aging Altered Angiogenesis during Fracture Healing
Chuanyong Lu, MD (n); Eric Hansen, MD (n); Anna Sapozhnikova, BA (n); Diane Hu, MD (n); Ralph Marcucio, PhD (n); Theodore Miclau, MD (n);
University of California at San Francisco, San Francisco, California, USA
Scientific Poster #92 Basic Science

Biomechanical Analysis of On-Axis and Off-Axis Screw Insertion
Clifford B. Jones, MD1; James A. Goulet, MD2; Brian L. Kincaid3;
Lisa Schroder3; (all authors - a-Zimmer, Inc.)
1Michigan State University, Grand Rapids, Michigan, USA;
2University of Michigan, Ann Arbor, Michigan, USA;
3Zimmer, Inc. Corporate Research and Development, Warsaw, Indiana, USA
Scientific Poster #93 Basic Science

Biomechanical Investigation of Locked versus Nonlocked Diaphyseal Fixation of Plate Screw Constructs in a Nonosteoporotic Human Cadaveric Distal Femoral Fracture Model
William M. Ricci, MD1; Yanming Zheng3; Zakiyyah Walker3;
Mary Anthony3; Jeff Holbrook3; Paul Tornetta III, MD2;
(all authors - a,e-Smith + Nephew)
1Washington University School of Medicine, St. Louis, Missouri, USA;
2Boston University, Boston, Massachusetts, USA
3Smith & Nephew, Memphis, Tennessee, USA
Scientific Poster #94 Basic Science

Pilot Study Evaluating the Efficacy of Reamer/Irrigator/Aspirator (RIA) for Attenuating Polymorphonuclear Priming following Intramedullary Nailing of Femoral Fractures
Steven J. Morgan, MD; Anand A. Parekh, MRCS (Eng);
Wade R. Smith, MD; Allison E. Williams, ND, PhD; Juan F. Agudelo, MD; Ruth M. Grosskreuz, MD; Phillip C. Eckels, BA; Ernest E Moore, MD
(all authors: a-AO Research Foundation)
Department of Orthopaedics and Department of General Surgery, Denver Health Medical Center, University of Colorado School of Medicine,
Denver, Colorado, USA
Scientific Poster #95 Basic Science

Bone Healing and NSAIDS: Their Effect on Endochondral Ossification
Ippokratis Pountos, DO; Elena Jones; Dennis McGonagle, PhD;
Peter V. Giannoudis, MD; (all authors - a-AO Foundation Research Grant)
Academic Department of Trauma & Orthopaedic Surgery, School of Medicine, University of Leeds, United Kingdom
Scientific Poster #96 Basic Science

· · Tricalcium Phosphate Putty as an Osteogenic Protein-1 (OP-1/BMP-7) Carrier
Donna L. Wheeler, PhD1 (*); G. Elizabeth Pluhar, DVM, PhD2 (*);
A. Simon Turner, DVM3 (*); Allen R. Pierce, BA4 (e-Stryker Biotech);
1Charles River Laboratories, Southbridge, Massachusetts, USA;
2University of Minnesota, Minnesota, Minnesota, USA;
3Colorado State University, Fort Collins, Colorado, USA;
4Stryker Biotech
Scientific Poster #97 Basic Science

Differential Gene Expression of Fracture Callus in Response to Mechanical Loading
Tony Wanich, MD (n); Michael Gardner, MD (n); Joshua Carson, BA (*); Jonathan Zelken, BA (N); Alexia Hernandez, BA (*); Mathias Bostrom, MD (n);
Hospital for Special Surgery, New York, New York, USA
Scientific Poster #98 Basic Science

·Biomechanical Effects of Harvesting Bone Graft with the Reamer/Irrigator/Aspirator
Jeremy J. McCormick, MD1 (*); Mark A. Reed, MD2 (*), Andrew Morse1 (*); Elias Wilson3 (*); Kristen L. Billiar, PhD3 (*); John J. Wixted, MD1 (a-Synthes);
1University of Massachusetts Medical School, Worcester, Massachusetts, USA;
2University of Alabama Medical School, Birmingham, Alabama, USA;
3Worcester Polytechnic Institute, Worcester, Massachusetts, USA
Scientific Poster #102 Geriatrics

· Review of Healing with rhBMP-2/ACS Use in the Medicare-aged Population
J. Dean Cole, MD (a-Medtronic, USA, Inc); Steve Nguyen, MD (n);
Donna L. Lamb, MBA, BSN (a-Medtronic, USA, Inc);
Fracture Care Center at Florida Hospital,
Orlando, Florida, USA
If noted, the author indicates something of value received. The codes are identified as a-research or institutional support; b-miscellaneous funding; c-royalties; d-stock options; e-consultant or employee; n-no conflicts disclosed, and *disclosure not available at time of printing.
· The FDA has not cleared this drug and/or medical device for the use described in this presentation (i.e., the drug or medical device is being discussed for an "off label" use). · · FDA information not available at time of printing.