Hours of Operation: Monday - Friday, 9:00 a.m. - 9:00 p.m.; After Hours by Appointment

OrthoBioMech LLC

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Developing Elegant Solutions for Surgical Repair of Skeletal Function


Forensic Analyses: Failed Medical Devices & Injury Biomechanics

Medical Device Expertise

Warsaw | Topics/Examples

Mari Holding Diploma

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Experienced BioMedical /Biomechanics Engineer and Expert Witness

Turn to Mari S. Truman M.S. P.E. for medical device development and injury biomechanics analysis services. Serving the orthopedic and legal fields, Mari has over 38 years of experience in musculoskeletal mechanics and orthopaedic device product development. While working for and with major US orthopaedic companies, she designed numerous instruments and implants for repair of skeletal injuries. She also provides services as a forensic expert witness for assisting attorneys in evaluating patients for injury biomechanics cases or for medical review for medical devices. Contact Mari to learn more about her work, and how she can assist you with your case.

Orthopaedic Device Tools

Licensed Professional Engineer:

  • Seasoned
  • Trusted
  • Thorough

Medical Device Design and Development:

  • 38+ Years of Orthopaedic Device Development
  • Projects from Napkin to Launch
  • Technical Assistance to in-House Teams for Portions of Projects
  • Specialize in Surgeon-Inventor and Small Company Assistance
  • CAD/CAE Using SolidWorks Pro (Other Software Tools as Needed)

Testified in State and Federal Courts for Injury Biomechanics and Medical Device Litigation:

  • 100+ Depositions
  • 20+ Trials

Call Mari S. Truman today to request a consultation.
Call (574) 306-5067

Mari S. Truman M.S. P.E.


Mari S. Truman M.S. P.E. founded OrthoBioMech LLC in 2003, where she assists clients in orthopaedic product development, injury biomechanical analyses, and medical device forensic expert reviews. She has been active in the biomechanics field since 1980 when she received her BS in Biomedical Engineering from the Catholic University of America. More recently, she earned her MS in Mechanical Engineering from the University of Illinois. She has designed and developed systems to repair fractured bones and torn ligaments and to reconstruct spine, knee, hip, and other joints. She is named on 12 orthopaedic patents and gives talks on implant design and injury biomechanics. Learn More →

Case Examples

  • Examining motions and forces applied by and to the body during fall and fall recovery, projectile impacts, vehicular collisions and sports, recreation, and occupational overuse or injury. Read Case Study →
  • Review of explanted medical device design, manufacture, and implantation records to determine if defects were present and caused or contributed to injuries. Read Case Study →


  • AMS International (Materials Society)
  • Society of Automotive Engineers (SAE)
  • American Society of Mechanical Engineers (ASME)
  • American College of Sports Medicine (ACSM)
  • Ohio Society of Professional Engineers (OSPE)
  • Orthopedic Research Society (ORS)
  • North American Spine Society (NASS)
  • International Society of Biomechanics (ISB)
  • National Society of Professional Engineers (NSPE)
  • Kiwanis International

Membership Links

  • Our affiliates include Kiwanis International, an organization dedicated to helping children and communities one project at a time, and ASM International, a professional organization comprised of scientists and engineers.


Thank you for your interest. For questions or comments, please use the information below. Mari looks forward to hearing from you soon.

(574) 306-5067
Hours of Operation
Monday - Friday, 9:00 a.m. - 9:00 p.m.
After Hours by Appointment
Service Area
Nationwide and Global