Here are some examples of past projects that we have worked on at the Orthopaedic Research Laboratory, including some selected projects that have been published.
- Compression testing of custom titanium implants for skull reconstruction
- Fatigue testing of a tapered titanium spinal rod compared to two rods connected by a parallel connector
Project title: Fatigue Testing of a Titanium Tapered Rod versus Two Rods Connected by a Parallel Connector across the Cervicothoracic Junction: A Biomechanical Study
Publication: Journal of King Abdulaziz University - Medical Sciences (In press)
- Characterization of different trochanteric fixation nail systems (hip surgery) for stiffness and alignment accuracy for guide wire drilling
Simple pullout test of pedicle screw. The human vertebral body is embedded in PMMA.
Characterizing fixation strength in fatigue loading using a pedicle screw in cranial/caudal rotation. The human vertebral body is embedded in PMMA.
Simple bending test of clavicle plate and screw system using Sawbones model
Project title: Mechanical Evaluation of 2.7-Versus 3.5-mm Plating Constructs for Midshaft Clavicle Fractures
Publication: Journal of the American Academy of Orthopaedic Surgeons: July 22, 2020 (Volume publish ahead of print)
We have the knowledge and equipment needed to create customized testing environments. After determining the testing that needs to be done for your study or project, we can design and create customized fixtures and jigs to complete the testing you require. Here are some examples of past custom designs.
- Custom-made handheld device for intervertebral disc profilometry pressure measurements
Design: Final result:
- Custom set-up for aligning the pullout direction to be parallel to the ACL tunnel. This is for a simple ACL pullout (ACL substitute semitendinosus and gracilis tendons) comparing three supplemental fixation methods.
Project title: ACL Reconstruction with Supplemental Tibial Fixation: a Biomechanical Study Comparing a Novel All-Soft Tissue Technique for Secondary Fixation with other Techniques
Publication: Canadian Orthopaedic Association, COA Bulletin #118 - Fall/Winter 2017
Custom setup to create an ulno-triquetral (UT) ligament tear in fresh-frozen cadaveric specimens. The UT ligament tear is subsequently repaired and the loading is reapplied to evaluate the load tolerated on the repaired UT ligament in different movements of flexion/extension and radial/ulnar deviation of the wrist.
Project title: "Hockey wrist": dorsal ulnotriquetral ligament injury
Publication: Canadian Journal of Surgery 2018