Anna, a 65-year-old woman, is experiencing discomforting lower back pain. She jokes to her doctor that she must be shrinking because her body height has somewhat diminished over the last few years....

Anna, a 65-year-old woman, is experiencing discomforting lower back pain. She jokes to her doctor that she must be shrinking because her body height has somewhat diminished over the last few years. What can be the case?

Mary, a 70-year-old woman, has been experiencing severe pain, swelling, and stiffness in her hip joint.

Tests reveal Mary has osteoarthritis in her hip joint. Which treatment can help her?