Chapter 9 (Joints V)

Question 1

Aging and Joints

Answer 1

May result in decreased production of synovial fluid.
The articular cartilage becomes thinner.
Ligaments shorten and lose some of their flexibility.
Osteoarthritis is partially age-related.
Stretching and aerobic exercises are helpful in minimizing the effects of aging.
Help to maintain the effective functioning of ligaments, tendons, muscles, synovial fluid, and articular cartilage.

Question 2

Arthroplasty

Answer 2

Joints may be replaced surgically with artificial joints.

Most commonly replaced are the hips, knees, and shoulders

Question 3

Hip Replacements

Answer 3

Partial hip replacements involve only the femur.

Total hip replacements involve both the acetabulum and head of the femur.

Question 4

Knee Replacements

Answer 4

A resurfacing of cartilage and may be partial or total.
Potential complications of arthroplasty include infection, blood clots, loosening or dislocation of the replacement components, and nerve injury.