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Basic Science
intermediate
X-Type

Hip Biomechanics

Biomechanics

A 58-year-old woman with severe hip osteoarthritis is being planned for total hip arthroplasty. Her surgeon is discussing component selection and the importance of restoring appropriate hip biomechanics. She works as a nurse and is concerned about returning to an active lifestyle. Regarding hip biomechanics:

Mark each as TRUE or FALSE

A

During single-leg stance, the hip abductor muscles (primarily gluteus medius and minimus) contract t...

B

The abductor mechanism acts as a lever system where the abductor lever arm (distance from hip center...

C

Femoral offset has no effect on hip biomechanics; decreasing offset increases abductor lever arm and...

D

Femoral offset is the perpendicular distance from the femoral head center to the long axis of the fe...

E

A cane held in the contralateral hand reduces hip joint reaction force by 50-60% by decreasing the b...

Answer the questions to see explanations

Click T (True) or F (False) for each option