A cane can be an invaluable aid to reduce falls in someone with unsteady gait or weakness on one side, but it pays to choose carefully and use it correctly. Here are some tips:

Design
The traditional crook-shaped cane (A) is still around, but many handle styles and shaft designs offer greater comfort and stability, such as the flat-handle cane in figure B. A quad cane (C) offers the most stability, but may be cumbersome for some people.

Regardless of design, any cane should be light in weight and adjustable in length. Make sure the rubber tip(s) is in good condition and replaceable.

Length
To adjust a cane to the proper length, stand upright with shoes on, letting your hands hang at your sides. The top of the cane's handle should come up to the crease on the inside of your wrist. Now hold the cane as if using it. Your arm should be slightly bent at the elbow (about 20 degrees).

Using a Cane
If you have a "bad" side that needs more support, hold the cane in the opposite hand. Start by placing the cane one small stride ahead and step with your weaker leg, finishing with your better leg. As you walk, your weaker leg and the cane should strike the ground at the same time.

To climb stairs, grasp the handrail (if possible), step first with the cane and your stronger leg, then bring your weaker leg up. To descend stairs, step down first with the weaker leg, then with the cane and the stronger leg.

(The foregoing tips are not meant to replace the advice and instruction of a trained physical or occupational therapist)