Biomechanics of Arthroplasty — MCQs

A patient with metastatic breast cancer presents with pathological fracture of femur. What is the best fixation method?

Which of the following is the commonest material used to make an orthopedic implant?

Healing of bone is affected by:

Nickel-titanium alloy has increased flexibility over stainless steel. How does the modulus of elasticity for nickel-titanium alloy compare to that of stainless steel?

Which of the following fractures of the neck of femur are associated with maximal compromise in blood supply ?

All of the following factors affect osseointegration EXCEPT:

Which posture is associated with the greatest lumbar intradiscal pressure?

Which of the following muscles is primarily responsible for generating propulsive force during the push-off phase of normal gait?

What is the primary dynamic stabilizer of the patella against the lateral pull of the vastus lateralis?

The following gait is seen due to weakness of: