Novel Design of an Anterior Cruciate Ligament (ACL) Injury Prevention Brace Rachel Porter Dan Greenshields Justin Killewald 1 Lawrence Technological Universi BME Senior Projects 1 Dr. Mansoor Nasir, Fall 2013 Faculty Advisor: Dr. Eric Meyer Technical Advisor: Ken Cook, P.
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Novel Design of an Anterior Cruciate Ligament (ACL) Injury Prevention Brace Rachel Porter Dan Greenshields Justin Killewald 1 Lawrence Technological University.
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Novel Design of an Anterior Cruciate Ligament (ACL) Injury Prevention Brace
Rachel Porter
Dan Greenshields
Justin Killewald
Lawrence Technological UniversityBME Senior Projects 1Dr. Mansoor Nasir, Fall 2013
Faculty Advisor: Dr. Eric Meyer, PhDTechnical Advisor: Ken Cook, P.E.
2Agenda
Problem
Need Statement
Background
Knee Anatomy
Knee Mechanics
Knee Injuries
ACL Injuries
ACL Injury Mechanisms
Objective
Current progress/Future plans
Research plan
Design Process
Patent
Testing
Cost & materials
Timeline
Tasks & responsibilities
3Problem
Knee injuries account for approximately 60% of all sports related injuries. Nearly half of those injuries occur to the ACL [1].
Extensive recovery time ~ 8-12 months
4Need Statement
An improved knee brace for ACL injury prevention could help lower the injury rate in athletes.
Short term benefits
In turn, this potentially could delay the onset of further knee complications later in life.
Long term benefits
5Design
ACL braces
Prevent hyperextension
Prevent valgus bending
Osteoarthritis braces
Unicompartmental loading
Include design characteristics of prevention braces
January Assemble first prototype brace and begin human subject testing
February Continue testing prototype and adjust design
March Adjust design and continue testingData analysis
April Data analysis and interpretation
May Prepare final report and presentationFile provisional patent
24Anticipated Challenges
Not a significant decrease in compressive load forces
Time restrictions
Failed IRB approval
Patent filing
25Tasks & Responsibilities
Individual tasks
Rachel Porter
Institutional Review Board (IRB) filing
Dan Greenshields
Existing knee brace patent search
Patent application
Justin Killewald
Hinge design research
Materials used in braces
Shared tasks
Prototype design & fabrication
Testing
Data analysis
Presentation creation
Final report documentation
26References
[1] Rishiraj, Neetu, Jack E. Taunton, Robert Lloyd-Smith, Robert Woollard, William Regan, and D.B. Clement. "The Potential Role of Prophylactic/Functional Knee Bracing in Preventing Knee Ligament Injury." Sports Medicine 39.11 (2009): 937-60. Print.
[3]Teng, Phillis S.P., K.F. Leong, P.Y. Huang, and J. McLaren. "The Effect of a Knee-ankle Restraint on ACL Injury Risk Reduction during Jump-landing." Procedia Engineering60 (2013): 300-06. Print.
[4] Meyer, Eric G., and Roger C. Haut. "Excessive Compression of the Human Tibio-femoral Joint Causes ACL Rupture." Journal of Biomechanics 38.11 (2005): 2311-316. Print.
[5] Yu, B. "Immediate Effects of a Knee Brace With a Constraint to Knee Extension on Knee Kinematics and Ground Reaction Forces in a Stop-Jump Task." American Journal of Sports Medicine 32.5 (2004): 1136-143. Print.
[7] Majewski, M., H. Susanne, and S. Klaus. "Epidemiology of Athletic Knee Injuries: A 10-year Study." The Knee 13.3 (2006): 184-88. Print.
[8] Gaasbeek, Robert D.A., Brenda E. Groen, Brieke Hampsink, Ronald J. Van Heerwaarden, and Jacques Duysens. "Valgus Bracing in Patients with Medial Compartment Osteoarthritis of the Knee A Gait Analysis Study of a New Brace." Gait & Posture26 (2007): 3-10. Print.