Kent N. Bachus

Kent N. Bachus, PhD

Languages spoken: English

Academic Information

Departments Primary - Orthopaedics

Research Interests

  • Amputee Rehabilitation
  • Orthopedic Fixation Devices
  • Applications of engineering to orthopedic patient rehabilitation
  • Biomechanics
  • Bone and Soft Tissue Mechanics
  • Bone remodeling around prosthetic components and biomaterials
  • Osteoporosis and Aging
  • Bones of Upper Extremity
  • Lower Extremity
  • Percutaneous Devices
  • Osseointegration
  • Spine Biomechanics and 3D Motion
  • Foot and Ankle

Kent N. Bachus received his Bachelor of Science degree in Mechanical Engineering from Colorado State University in 1983, his Master of Science degree in Bioelectrics/Bioengineering from the University of Michigan in 1985, and earned his Doctor of Philosophy in Bioengineering from the University of Utah in 1989. He joined the faculty of the Department of Orthopaedics in 1994 and serves as the Director of the Orthopaedic Research Laboratory. He is a Research Professor in the Department of Orthopaedics and holds academic appointments in the Department of Bioengineering and the Department of Mechanical Engineering. He reviews for the Journal of Bone and Joint Surgery, Clinical Orthopaedics and Related Research, Journal of Trauma, Journal of Biomechanical Engineering, and the Journal of Biomaterials and others. His society memberships include the Orthopaedic Research Society, the Society for Biomaterials, the North American Spine Society, and the American Society for Testing and Materials. His research interests include the design and development of percutaneous osseointegrated implants for amputees, establishing and maintaining infection-free dermal-barriers for percutaneous devices, prevention and treatment of traumatic injuries, bone and soft tissue biomechanics, human and animal joint kinematics, and spine biomechanics.

Education History

Doctoral Training University of Utah
 PhD
University of Michigan
 MS
Undergraduate Colorado State University
 BS

Selected Publications

Journal Article

  1. Taylor CE, Drew AJ, Zhang Y, Qiu Y, Bachus KN, Foreman K, Henninger HB (). Upper extremity prosthetic selection influences loading of transhumeralosseointegrated systems. (Epub ahead of print) PLoS One.
  2. Skedros JG, Dayton MR, Cronin JT, Mears CS, Bloebaum RD, Wang X, Bachus KN (2024). Roles of collagen cross-links and osteon collagen/lamellar morphotypes in equine third metacarpals in tension and compression tests. J Exp Biol, 227(14). (Read full article)
  3. Dunn JA, Gomez NG, Wong B, Sinclair SK, Henninger HB, Foreman KB, Bachus KN (2024). Transhumeral prosthesis use affects upper body kinematics and kinetics. Gait Posture, 112, 59-66. (Read full article)
  4. Dunn JA, Wong B, Sinclair SK, Henninger HB, Bachus KN, Foreman KB (2024). Extended physiological proprioception is affected by transhumeral Socket-Suspended prosthesis use. J Biomech, 166, 112054. (Read full article)
  5. Skedros JG, Dayton MR, Bloebaum RD, Bachus KN, Cronin JT (2023). Strain-mode-specific mechanical testing and the interpretation of bone adaptation in the deer calcaneus. J Anat, 244(3), 411-423. (Read full article)
  6. Skedros JG, Cronin JT, Dayton MR, Bloebaum RD, Bachus KN (2023). Exploration of the Synergistic Role of Cortical Thickness Asymmetry ("Trabecular Eccentricity" concept) in Reducing Fracture Risk in the Human Femoral Neck and a Control Bone (Artiodactyl Calcaneus). J Theor Biol, 111495. (Read full article)
  7. Dunn JA, Taylor CE, Wong B, Henninger HB, Bachus KN, Foreman KB (2022). Testing Precision and Accuracy of an Upper Extremity Proprioceptive Targeting Task Assessment. Arch Rehabil Res Clin Transl, 4(3), 100202. (Read full article)
  8. Karczewski AM, Zeng W, Stratchko LM, Bachus KN, Poore SO, Dingle AM (2022). Clinical Basis for Creating an Osseointegrated Neural Interface. Front Neurosci, 16, 828593. (Read full article)
  9. Taylor CE, Henninger HB, Bachus KN (2022). Finite Element Analysis of Transhumeral and Transtibial Percutaneous Osseointegrated Endoprosthesis Implantation. Front Rehabil Sci, 2. (Read full article)
  10. Taylor CE, Henninger HB, Bachus KN (2021). Virtual implantation technique to estimate endoprosthetic contact of percutaneous osseointegrated devices in the tibia. Med Eng Phys, 93, 1-7. (Read full article)
  11. Taylor CE, Henninger HB, Bachus KN (2020). Cortical and medullary morphology of the tibia. Anat Rec (Hoboken), 304(3), 507-517. (Read full article)
  12. Aliaj K, Feeney GM, Sundaralingam B, Hermans T, Foreman KB, Bachus KN, Henninger HB (2020). Replicating dynamic humerus motion using an industrial robot. PLoS One, 15(11), e0242005. (Read full article)
  13. Taylor CE, Drew AJ, Zhang Y, Qiu Y, Bachus KN, Foreman KB, Henninger HB (2020). Upper extremity prosthetic selection influences loading of transhumeral osseointegrated systems. PLoS One, 15(8), e0237179. (Read full article)
  14. Eli IM, Karsy M, Brodke DS, Bachus KN, Couldwell WT, Dailey AT, Mazur MD (2019). Restabilization of the Occipitocervical Junction After a Complete Unilateral Condylectomy: A Biomechanical Comparison of Unilateral and Bilateral Fixation Techniques. Oper Neurosurg (Hagerstown), 19(2), 157-164. (Read full article)
  15. Pawar DRL, Jeyapalina S, Bachus KN (2019). Evaluation of soft-tissue response around laser microgrooved titanium percutaneous devices. J Biomed Mater Res B Appl Biomater, 108(5), 2031-2040. (Read full article)
  16. Taylor CE, Zhang Y, Qiu Y, Henninger HB, Foreman KB, Bachus KN (2020). Estimated forces and moments experienced by osseointegrated endoprostheses for lower extremity amputees. Gait Posture, 80, 49-55. (Read full article)
  17. Jeyapalina S, Colombo JS, Beck JP, Agarwal JP, Schmidt LA, Bachus KN (2019). Epidermal growth factor receptor genes are overexpressed within the periprosthetic soft-tissue around percutaneous devices: A pilot study. J Biomed Mater Res B Appl Biomater, 108(2), 527-537. (Read full article)
  18. Drew AJ, Taylor CE, Tashjian RZ, Chalmers PN, Henninger HB, Bachus KN (2019). Initial stability of a percutaneous osseointegrated endoprosthesis with proximal interlocking screws for transhumeral amputees. Clin Biomech (Bristol, Avon), 72, 108-114. (Read full article)
  19. Jeyapalina S, Beck JP, Drew A, Bloebaum RD, Bachus KN (2019). Variation in bone response to the placement of percutaneous osseointegrated endoprostheses: A 24-month follow-up in sheep. PLoS One, 14(10), e0221850. (Read full article)
  20. Drew AJ, Tashjian RZ, Henninger HB, Bachus KN (2019). Sex and Laterality Differences in Medullary Humerus Morphology. Anat Rec (Hoboken), 302(10), 1709-1717. (Read full article)
  21. Jeyapalina S, Mitchell SJ, Agarwal J, Bachus KN (2019). Biomimetic coatings and negative pressure wound therapy independently limit epithelial downgrowth around percutaneous devices. J Mater Sci Mater Med, 30(6), 71. (Read full article)
  22. Shelton TJ, Steele AE, Saiz AM, Bachus KN, Skedros JG (2018). The Circle-Fit Method Helps Make Reliable Cortical Thickness Measurements Regardless of Humeral Length. Geriatr Orthop Surg Rehabil, 9, 2151459318818163. (Read full article)
  23. Isackson D, Cook KJ, McGill LD, Bachus KN (2012). Mesenchymal stem cells increase collagen infiltration and improve wound healing response to porous titanium percutaneous implants. Med Eng Phys, 35(6), 743-53. (Read full article)
  24. Henninger HB, Barg A, Anderson AE, Bachus KN, Burks RT, Tashjian RZ (2011). Effect of lateral offset center of rotation in reverse total shoulder arthroplasty: a biomechanical study. J Shoulder Elbow Surg, 21(9), 1128-35. (Read full article)
  25. Henninger HB, Barg A, Anderson AE, Bachus KN, Tashjian RZ, Burks RT (2011). Effect of deltoid tension and humeral version in reverse total shoulder arthroplasty: a biomechanical study. J Shoulder Elbow Surg, 21(4), 483-90. (Read full article)

Conference Proceedings

  1. Carolyn E Taylor, Alex J Drew, Kent N Bachus, Heath B Henninger, K Bo Foreman (2019). “Upper extremity prosthetic devices influence loading of transhumeral osseointegrated systems. Utah Biomedical Engineering Conference (Podium Presentation), Salt Lake City, UT.

Abstract

  1. Dunn JA, Wong B, Sinclair SK, Henninger HB, Bachus KN, Foreman KB (2023). Use of a Socket-Suspended Prosthesis Affects Upper Extremity Kinematics During Unilateral Activities of Daily Living [Abstract].
  2. Dunn JA, Wong B, Sinclair SK, Henninger HB, Bachus KN, Foreman KB (2023). The effect of unilateral transhumeral prosthesis use and disuse on gait kinematics and kinetics [Abstract].
  3. Dunn JA, Wong B, Sinclair SK, Henninger HB, Bachus KN, Foreman KB (2023). Upper Extremity Kinematics are Affected by Socket Suspended Prostheses during Reaching Motions [Abstract].
  4. Dunn JA, Wong B, Sinclair SK, Henninger HB, Bachus KN, Foreman KB (2023). Socket Suspended Prostheses Affect Upper Extremity Kinematics During Proprioceptive Reaching   [Abstract].
  5. Dunn JA, Henninger HB, Foreman KB, Bachus KN (2022). Inconsistent Use of Complex Upper Extremity Prostheses May Contribute to Back Pain [Abstract]. Rocky Mountain American Society of Biomechanics Annual Meeting.
  6. Dunn JA, Taylor CE, Bachus KN, Henninger HB, Foreman KB (2021). Testing Accuracy and Precision of a Proprioceptive Targeting Task [Abstract].
  7. Dunn JA, Taylor CE, Bachus KN, Henninger HB, Foreman KB (2020). Targeted Task Proprioception Protocol Validation Study (Virtual Presentation) [Abstract].
  8. Dunn JA, Taylor CE, Bachus KN, Henninger HB, Foreman KB (2020). Targeted Task Proprioception Protocol Validation Study (Conference canceled due to COVID-19) [Abstract].
  9. Taylor CE, Henninger HB, Bachus KN (2019). Analysis of medullary tibial morphology to guide intramedullary percutaneous osseointegrated implant design [Abstract]. ORS 2019 Annual Meeting, PS2-084.
  10. Phippen CM, Langston TD, Mears CS, Drew AJ, Bachus KN, Nielsen MT, Skedros JG (2017). Clinical Radiographic Projections of the Upper Humerus can Result in Substantial Errors When Quantifying the Deltoid Tuberosity Index, Cortical Index, and Other Morphological Characteristics: A Controlled Study in Cadaveric Humeri [Abstract]. Orthopaedic Research Society.
  11. Beck JP, Jeyapalina S, Drew A, Bloebaum RD, Bachus KN (2017). 24-Month Evaluation of a Distally Loaded Percutaneous Osseointegrated Prosthetic System in a Large Animal Amputation Model [Abstract]. Orthopaedic Research Society.
  12. Jeyapalina S, Mitchell SJ, Agarwal J, Bachus KN (2017). Biomimetic Coatings and Negative Pressure Wound Therapy Limit Epithelial Downgrowth Around Percutaneous Devices [Abstract]. Orthopaedic Research Society, San Diego, CA.
  13. Jeyapalina S, Beck JP, Bloebaum RD, Bachus KN (04/22/2010). A Pig Model to Evaluate the Ability of Porous Titanium Coated Subdermal Disks to Prevent Infection in Transcutaneous Osseointegrated Implants [Abstract]. Society for Biomaterials 2010.
  14. Isaacson BM, Vance RE, Rosenbaum Chou TG, Bloebaum RD, Bachus KN, Webster, JB (2010). Assessing implant strength and stability in an in vitro osseointegration model using resonance frequency. [Abstract].
  15. Jeyapalina S, Beck JP, Bachus KN, Bloebaum RD (2010). Skin tissue response to a percutaneous osseointegrated implant: A sheep amputation model [Abstract].
  16. Beck JP, Bachus KN, Jeyapalina S, Epperson RT, Bloebaum RD (2010). Bone response to load bearing percutaneous osseointegrated implants for amputees: A sheep amputation model. [Abstract].
  17. Baschuk, C M, Shelton, T J, Bloebaum, R D, Bachus, K N (2010). Variance of Femoral Bow in the Sagittal Plane Based on Age, Gender and Ethnicity for Percutaneous, Osseointegrated Implants [Abstract].
  18. Shelton, T J, Bloebaum, R D, Bachus, K N (2010). Percutaneous, Osseointegrated Implants: A 12 Month Study of Limb Compensation in an Amputated Ovine Model [Abstract].
  19. Bachus, KN, Shelton, T J, Jeyapalina, S, Bloebaum, R D (2010). Bone Ingrowth and Mechanical Stability of Percutaneous, Osseointegrated Implants [Abstract].
  20. Spencer Naser, Dorthyann Isackson, David Grainger, Paul Hogrebe, Kent Bachus (2010). Mechanical Properties and the In Vivo Response to Porous Polyurethane: An Evaluation to Provide an Effective Subdermal Barrier against Infection [Abstract].
  21. Bloebaum R D, Beck J P, Olsen R, Norlund L, Bachus K N (2009). Development of a Single Stage Surgical Model for Percutaneous Osseointegrated Implants for Amputees [Abstract]. Orthopaedic Research Society 2009.
  22. Shelton T J, Bloebaum R D, Bachus K N (2009). Vertical Forces of Percutaneous, Osseointegrated Implants of an Ambulating Ovine Amputation Model. [Abstract]. Orthopaedic Research Society 2009.
  23. Isackson D, Bailey B, Brown NAT, Petty C, Bachus K N (2009). An Investigation of Infection Rate and Porous Metal Dermal Barriers [Abstract]. Orthopaedic Research Society 2009.
  24. Campbell J R, Schabel K L, Horwitz D S, Bachus K N (2009). Iatrogenic Femoral Fracture Resulting from Trochanteric Nail Orientation [Abstract]. Orthopaedic Research Society 2009.
  25. Campbell J R, Schabel K L, Horwitz D S, Bachus K N (2009). Cortical Thickness and Inner Canal Diameter Ratio: A Risk Factor for Iatrogenic Femoral Fracture [Abstract]. Orthopaedic Research Society 2009.
  26. Bachus K N, Lobo A I (2009). An Overload Protection Device for Percutaneous, Osseointegrated Implants for Amputees [Abstract]. Orthopaedic Research Society 2009.
  27. Pelt, CA, Beals, TC, Turner, C, Foreman K B, Bachus KN (2009). MicroCT Density Analysis of the Medial Wall of the Human Medial Cuneiform [Abstract]. Orthopaedic Research Society 2009.
  28. Isackson D, Bailey B, Brown NA, Bachus KN (2008). Dermal Barriers to Prevent Infection of Percutaneous Implants [Abstract]. Society for Biomaterials 2008.
  29. Finn Michael A, Brodke DS, Bachus KN (2008). In vitro biomechanics of a novel cervical total disk implant. [Abstract]. AAOS 2008.
  30. Finn Michael A, Brodke DS, Bachus KN (2008). The rescue screw in anterior cervical fusion: comparisons of insertional torque and stiffness. [Abstract]. AAOS 2008.
  31. Finn Michael A, Brodke DS, Bachus KN (2008). The cervical end of occipitocervical fusion: a biomechanical evaluation of three constructs. [Abstract]. AAOS 2008.
  32. Finn Michael A, Bachus KN, Brodke DS (2008). Local and global subaxial cervical spine biomechanics after single-level fusion or cervical arthroplasty with a novel implant [Abstract]. AAOS 2008.
  33. Hunt KJ, Braun JT, Sorenson SM, Bachus KN (2007). CREATION OF SCOLIOSIS IN AN IMMATURE GOAT: EVALUATION OF FUSIONLESS SCOLIOSIS IMPLANT STRATEGIES OF VARYING RIGIDITY [Abstract]. Orthopaedic Research Society 2007.
  34. Bachus KN, Brodke DS, Chappius J (2007). Augmenting Osteoporotic Sacra for Posterior Pedicle Screw Fixation [Abstract]. Orthopaedic Research Society 2007.
  35. Akyuz E, Braun JT, Brown NAT, Bachus KN (2007). THE RESPONSE OF THE GROWTH PLATE TO ASYMMETRIC MECHANICAL STIMULI [Abstract]. Orthopaedic Research Society 2007.
  36. Brodke DS, Clark R, Bachus KN (2006). Biomechanical Evaluation of a Novel Anterior Cervial Plate System [Abstract]. AANS/CNS Section on Disorders of the Spine and Peripheral Nerves.
  37. Akyuz E, Braun JT, Brown NAT, Bachus KN (2006). THE RESPONSE OF THE GROWTH PLATE TO ASYMMETRIC MECHANICAL STIMULI [Abstract]. Orthopaedic Research Society 2006.
  38. Bachus KN, Brodke DS, Klimo P, Hines J, Dailey AT (2005). STATIC, ROTATIONALLY DYNAMIC AND TRANSLATIONALLY DYNAMIC CERVICAL PLATE BIOMECHANICS IN A HUMAN CADAVERIC MODEL [Abstract]. Orthopaedic Research Society 2005.
  39. Fassett D, Brodke DS, Clark R, Bachus KN, Dailey A (2004). A biomechanical comparison of dynamic and static anterior cervical plates in a trauma model. [Abstract]. NASS 19th Annual Meeting.
  40. Braun JT, Ogilvie JW, Brodke DS, Bachus KN, Akuyz E (2003). Correction of experimental scoliosis without fusion using a flexible ligament tether versus a rigid shape memory alloy staple [Abstract]. Orthopaedic Research Society, 49th Annual Meeting, New Orleans LA.

Patent

  1. Drew A, Henninger HB, Bachus KN (2018). Osseointegrated Implant Assembly Having Transverse Through-Openings and Systems and Methods of Using Same. U.S. Patent No. Provisional Patent Application, Attorney Docket No. 21101.0343U1. Washington, D.C.:U.S. Patent and Trademark Office.
  2. Holt BM, Jeyapalina S, Bloebaum RD, Bachus KN (2017). Modular Prosthetic Abutment System. U.S. Patent No. US 9,839,535 B2. Washington, D.C.:U.S. Patent and Trademark Office.
  3. Longo JA, Bachus KN, Jeyapalina S, Beck JP, Bloebaum RD, Agarwal JP, Kubiak E, Holt BM (2014). Percutaneous Osseointegrated Implant Assembly for Use in Supporting an Exo-Prosthesis. U.S. Patent No. 20140195002. Washington, D.C.:U.S. Patent and Trademark Office.
  4. Brian Mueller Holt, Kent N. Bachus, Sujee Jeyapalina, James Peter Beck, Roy D. Bloebaum (2014). Percutaneous Osseointegrated Prosthetic Implant System. U.S. Patent No. 20140156022. Washington, D.C.:U.S. Patent and Trademark Office.
  5. Roy D. Bloebaum, Raymond E. Olsen, Kent N. Bachus (2013). Antimicrobial Containment Cap For A Bone Anchored Prosthesis Mounting System. U.S. Patent No. 20130253664. Washington, D.C.:U.S. Patent and Trademark Office.
  6. Holt BM, Bachus KN, Jeyapalina S, Beck JP, Bloebaum RD (2012). Percutaneous Osseointegrated Prosthetic Implant System. U.S. Patent No. US 20140156022. Washington, D.C.:U.S. Patent and Trademark Office.
  7. Roy D. Bloebaum, Kent N. Bachus, Raymond E. Olsen (2009). Antimicrobial Containment Cap For a Bone Anchored Prosthesis Mounting. U.S. Patent No. 20090005820. Washington, D.C.:U.S. Patent and Trademark Office.
  8. Kent N. Bachus, Jeremy D. Borchert (2008). Releasible Attachment System For a Prosthetic Limb. U.S. Patent No. 20080288087. Washington, D.C.:U.S. Patent and Trademark Office.
  9. Bloebaum RD, Bachus KN, Olsen RE (2006). Antimicrobial containment cap for a bone anchored prosthesis mounting. U.S. Patent No. US 8444701. Washington, D.C.:U.S. Patent and Trademark Office.
  10. Bachus KN, Borchert JD (2006). Releasable attachment system for prosthetic limb (20120316657). U.S. Patent No. US 8246693. Washington, D.C.:U.S. Patent and Trademark Office.