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Orthopedic Ban Review | Dr Hutaif General Orthopedics R -...

Updated: Feb 2026 48 Views
Orthopedic Ban Review | Dr Hutaif General Orthopedics R -...
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Orthopedics Online MCQs

QUESTION 1
ORTHOPEDIC MCQS ONLINE QUESTION BANK HIA
Slide 1
What is the most likely mechanism of failure for the patellar component shown:















1
Fatigue
2
Tension
3
Shear
4
Delamination
5
Compression Component fracture in a completely polyethylene patellar component is rare. Most patellar component failures involve metal-backed patellar components. Shearing of the fixation pegs from the remainder of the patellar component is a recognized complication of metal-backed patellar components. The same mechanism is responsible for the failure seen.Correct Answer: Shear 2/. (209) Q1-317: The minimum thickness of polyethylene required for the tibial component of a total knee prosthesis is:
Dr. Mohammed Hutaif
Written & Medically Reviewed by
Consultant Orthopedic & Spine Surgeon