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BME Team: (front row, L to R) Kimi Dahl, Carlie Jones-Hershinow, Travis Turnbull, Scott Tashman, Chris Bartolomei. (back row, L to R) Jon Miles, Sarah Wilson, Amanda Vinson, Alex Brady, Anna Bryniarski.


The Institute’s Department of Biomedical Engineering is a multidisciplinary laboratory which applies quantitative, analytical, and integrative methods to the field of orthopaedic medicine. The multitalented research staff integrates clinical care, research, and education with the resources of world-renowned medical doctors in order to improve the treatment of musculoskeletal diseases. This focused approach is designed to maintain and enhance athletic performance, health, and quality of life for the professional, semi-professional, collegiate, high school and the recreationally active individual through an emphasis on bench-to-bedside research. The programs provided by the Department of Biomedical Engineering are unique and diverse and they encompass a complete range of services for the physically active or those wishing to return to an active lifestyle after injury.

The Department continues to grow, adding expertise, technology, and equipment, while simultaneously increasing the quality and quantity of research through collaborative efforts with national and international institutions. The SPRI Research and Educational Laboratories, completely renovated in 2017, include a Biomotion Laboratory and a Biomechanical Testing Laboratory. The Biomotion Laboratory incorporates a biplane fluoroscopy and motion capture system complete with a sports performance area and force plates to analyze normal, injured, and treated patients during sporting activity. The Biomechanical Testing laboratory centers around two primary highly accurate and repeatable testing devices: a six-degree of freedom KUKA KR 60-3 robot and an Instron ElectroPuls E10000 linear-torsion testing machine.

Our overall goals are to enhance patient care nationally and internationally with a focus on high-quality research published in top-tier peer reviewed journals.

Biomedical Engineering Department Laboratories
Mechanical Testing
  • Kuka KR-60: Our 6 degree-of-freedom (DOF) robotic arm (Kuka KR-60-3, Kuka Robotics, Augsburg, Germany) is equipped with a universal force torque sensor (Delta F/T Transducer, ATI Industrial Automation, Apex, NC), allowing us to robotically test cadaveric human joints and gain insight into their kinematics. In a typical setup, one end of the cadaveric human joint is securely fixed to a pedestal, while the other end is held in the end effector of the robotic arm allowing the robot to move the joint.
    • Evaluation of Joint Kinematics: To evaluate joint kinematics (the study of describing movement using location, time, velocity, and acceleration measurements), we use the robot to submit the joint to specific forces while measuring displacements and rotations in all three dimensions. This gives us data showing how the joint behaves in terms of range of motion, stiffness and response to standardized clinical tests usually performed by surgeons. Main advantages of using a robotic system compared to evaluating joint kinematics by hand include accuracy, repeatability and autonomy.
    • Cutting Studies: The aim of cutting studies is to identify the effects of joint structures, such as tendons and ligaments, on joint kinematics. To accomplish this, we begin by evaluating the intact joint kinematics as a reference and then proceed to sequentially cut the structures we wish to study, re-evaluating joint kinematics after each cut. This allows us to draw conclusions about which structures are primary and secondary stabilizers for given joint motions.
    • Reconstruction Studies: The aim of reconstruction studies is to evaluate the performance of surgical procedures on restoring joint kinematics after an injury. To accomplish this, we begin by evaluating the intact joint kinematics as a reference, then simulate a joint injury, and finally perform a reconstruction evaluating joint kinematics after each state. Successful reconstructions are those that present minimal kinematic differences compared to the intact state, because this shows that the joint’s motion is close to the way it was prior to injury.
  • Instron E10000: Our dynamic testing machine (Instron ElectroPuls E10000, Instron Systems, Norwood, MA) is a state-of-the-art, accurate, and repeatable all-electric test instrument designed for dynamic and static testing on a wide range of materials and components. The Instron has 2 degrees of freedom that subsequently allows for movement in two axes (push/pull and twist/turn). Similar to the Kuka, the Instron allows researchers to evaluate joint biomechanics and surgical techniques related to the body’s major joints in a streamlined fashion.

  • SPRI’s Biomotion Lab utilizes state-of-the-art equipment used for 3D analysis of human movement. Studies performed in this lab focus on being proactive in the following areas:
    • Preventing injury occurrences by evaluating efficiency of movement
    • Assessing dynamic joint function
    • Evaluating surgical and physical therapy outcomes
    • Managing physical therapy rehabilitation progression
    • Measuring the effectiveness of durable medical equipment
    • Gaining knowledge of pathologies and their influence on sports performance
    • Enhancing performance technique
  • Equipment
    • 4 in-ground Bertec force plates
    • 18-Camera Qualisys motion capture system
    • 16-Channel Delsys Trigno Wireless EMG
    • Bertec Force Plate Instrumented Treadmill
    • APDM wearable sensor system
    • Athos EMG shorts
    • Orpyx LogR Gen 2 pressure measurement system
    • Dynamic Stereo X-ray system
  • Software
    • Qualisys Track Manager
    • Visual 3D
    • Mimics
    • Matlab
    • Labview
Surgical Skills
Biomedical Engineering Disciplines
Excellence in the Orthopaedic Research Field
  • 2017 – Cabaud Memorial Award (AOSSM)
    Use of Platelet-Rich Plasma Immediately Post-injury to Accelerate Ligament Healing was not Successful in An In Vivo Animal Model
    LaPrade RF, Goodrich L, Phillips J, Dornan GJ, Turnbull TL, Dahl KD, Coggins AN, Kisiday J, Frisbie D, Chahla J

  • 2017 – Achilles Orthopaedic Sports Medicine Research Award (ISAKOS)
    The Lateral Meniscus Posterior Root and Meniscofemoral Ligaments are Stabilizing Structures in the ACL Deficient Knee: A Biomechanical Study
    Moatshe G, Frank JM, Brady AW, Dornan GJ, Slette EL, Coggins AN, Muckenhirn KJ, Mikula JD, Turnbull TL, LaPrade RF

  • 2017 – Best Scientific Exhibit (AAOS)
    Optimization of Tunnel Position and Orientation in Complex Multiple Knee Ligament Reconstructions: Preoperative Planning and Intraoperative Techniques
    Brady AW, Chahla J, Engebretsen L, LaPrade RF, Moatshe G, Provencher MT, Slette EL, Turnbull TL

  • 2016 – Basic Scientist Travel Grant (ESSKA)
    Robotic Assessment of Anterolateral Ligament: Reconstruction of the Anterolateral and Anterior Cruciate Ligament
    Dornan G, Rasmussen M, Nitri M, Williams B, Moulton S, Cruz R, Goldsmith M, LaPrade RF

  • 2016 – Excellence in Research (AOSSM)
    Anatomic Anterolateral Ligament Reconstruction of the Knee Leads to Overconstraint at any Fixation Angle
    Schon JM, Moatshe G, Brady AW, Cruz RS, Chahla J, Dornan GJ, Turnbull TL, Engebretsen L, LaPrade RF

  • 2015 - Achilles Orthopaedic Sports Medicine Research Award (ISAKOS)
    Biomechanical Consequences of a Nonanatomic Posterior Medial Meniscus Root Repair After a Root Tear
    LaPrade CM, Foad A, Smith SD, Turnbull TL, Dornan GJ, Engebretsen L, Wijdicks CA, LaPrade RF

  • 2014 – Excellence in Research (AOSSM)
    Posterior Cruciate Ligament Graft Fixation Angles: Biomechanical Evaluation for Single- and Double-Bundle Reconstruction
    Kennedy NI, Goldsmith MT, Faucett SC, Rasmussen MT, Coatney GA, Engebretsen L, Wijdicks CA

  • 2013 - Richard Villar Trainee Excellence in Clinical Research Award (ISHA)
    The Effect of an Acetabular Labral Tear, Repair, Resection, and Reconstruction on the Hip Fluid Seal
    Nepple JJ, Philippon MJ, Campbell KJ, Dornan GJ, Jansson KS, LaPrade RF, Wijdicks CA

  • 2013 – Albert Trillat Young Investigator’s Award (ISAKOS)
    Biomechanical Consequences of a Complete Radial Tear Near the Medial Meniscus Posterior Root Attachment Site: In-Situ Pullout Repair Restores Derangement of Joint Mechanics
    Padalecki JR, Jansson KS, Smith SD, Dornan GJ, Pierce C, Wijdicks CA, LaPrade RF

Conference Attendance

  • American Academy of Orthopaedic Surgeons (AAOS)
  • American Orthopaedic Foot and Ankle Society (AOFAS)
  • American Orthopaedic Society for Sports Medicine (AOSSM)
  • European Society of Sports Traumatology, Knee Surgery, and Arthroscopy (ESSKA)
  • International Society for Hip Arthroscopy (ISHA)
  • International Society of Arthroscopy, Knee Surgery, and Orthopaedic Sports Medicine (ISAKOS)
  • World Congress of Biomechanics (WCB)

Journals with Publications

  • American Journal of Sports Medicine (AJSM)
  • Arthroscopy
  • Foot and Ankle International (FAI)
  • Journal of Bone and Joint Surgery (JBJS)
  • Knee Surgery, Sports Traumatology, Arthroscopy (KSSTA)
Education and Public Outreach Committee (EPOC)

The Education and Public Outreach Committee (EPOC) was established by SPRI to inspire the next generation of scientists through exposure to STEM (Science, Technology, Engineering, and Math). We have one of the most advanced Biomedical engineering and surgical education laboratories in the world, and our objective is to offer our Eagle County students exposure to a world-class scientific research program and hopefully light the Spark! Our SPRI team offers laboratory tours, scientific presentations, judging at local science fairs, and mentoring of student projects. With our three-tiered program, EPOC is designed to reach students from 5th grade through high school.

  • 5th Grade – SPRI Laboratory Tours
    • Three times a year, we open up our various laboratories to local 5th grade classrooms and allow them to see the important aspects of the SPRI labs used by our scientists and doctors. Students receive an interactive experience and Q&A sessions with SPRI scientists at each of the stations.

  • 6-8th Grade – School Visits by SPRI Scientists
    • Our dedicated scientists and researchers happily visit schools for classroom or assembly lectures to inform students about the cutting-edge research taking place at SPRI. Presentations inform 6-8th grade students about the musculoskeletal system, orthopaedics, biomechanical research, and how the scientific method is applied to real world, scientific problems. SPRI researchers also participate as judges at local, middle school science fairs.

  • High School
    • Science Club: Two students from each Eagle County high school, in grades 11-12, are selected by their respective science teachers to participate in SPRI’s high school science club under the mentorship of SPRI researchers. Teams complete two small-scale research projects during the fall semester, which introduces them to the process of planning, conducting, writing, and presenting research. In the spring semester, teams choose a unique, single project to develop and present to professional researchers, scientists, and clinicians at the end of the academic year.

    • Summer Scholars Program: Four students from each Eagle County high school (20 total), in grades 11-12, participate in a week-long experience while engaging with engineers, scientists, researchers, and clinicians at SPRI.  This program provides hands-on activities in all of SPRI's research departments and the opportunity to learn about different careers in the medical field from professionals at The Steadman Clinic. 

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