Assistive Devices for Mobility: Canes, Walkers, Crutches, and Gait Belts

Assistive devices help patients with mobility deficits ambulate safely and independently. Correct device selection, fitting, and patient education are critical to preventing falls and injury — and these details are high-yield on nursing exams.

Overview of Assistive Devices

Canes

• Used for patients with mild weakness or balance deficits who can bear weight but need light stability.
• Do not use a cane for non-weight-bearing patients.
• Fit: The top of the cane should reach the patient's wrist crease when standing, with the elbow bent 20–30°.
• Hold on the stronger side.
• Gait pattern: Cane and weaker leg advance together → stronger leg advances past them.
• Standard cane has a single tip. Quad cane has a four-point base — the flat side faces the patient.

Walkers

• Used for moderate weakness or balance deficits, providing increased stability with partial weight support.
• The patient must stand inside the walker frame, not behind it.
• Fit: Handgrips align with the wrist crease; elbows bent 20–30°.
• Standard walker: Patient lifts the walker forward (do not slide) → steps forward with the weaker leg first, then the stronger leg.
• Rolling walker: Two wheels (front only).
• Rollator: Four wheels with hand brakes; often includes a seat.
• Do not use on stairs unless specifically trained.

Crutches

• Used for patients who are non-weight-bearing or partial weight-bearing.
• Maintain a 2–3 finger gap between the axillary pad and the armpit.
• Never rest armpits on the pads — this causes crutch palsy (brachial plexus injury).
• Handgrips align with the wrist crease; weight is borne through the hands and arms.

Gait Patterns

• Four-point gait: Left crutch → right foot → right crutch → left foot. Used for partial weight-bearing on both legs.
• Three-point gait: Both crutches and the weaker leg advance together → stronger leg follows. Used for non-weight-bearing on one leg.
• Two-point gait: Left crutch and right foot together → right crutch and left foot together. Used for partial weight-bearing on both legs.
• Swing-to gait: Both crutches advance → legs swing to the level of the crutches.
• Swing-through gait: Both crutches advance → legs swing past the crutches. Fastest, but requires strong upper-body strength.

Stair Navigation

• Going up: Lead with the stronger leg first — "up with the good."
• Going down: Lead with the crutches and weaker leg first — "down with the bad."

Gait Belt

• Used for patients who can bear weight but are unsteady during ambulation or transfer.
• Provides a secure handhold for the caregiver — it is not a weight-bearing support device.
• Do not use for non-weight-bearing patients; use a mechanical lift instead.
• Application: Place around the waist over clothing. You should be able to slip your fingers between the belt and the patient.
• Stand on the patient's weaker side. Grasp the belt from the back and side with the palm facing up.
• If the patient begins to fall, lower them to the floor using the belt — do not try to catch them.
• Use caution with patients who have abdominal surgery, fresh ostomy, or a pacemaker.

Key takeaways

• Canes: Hold on the stronger side; top at the wrist crease; quad cane's flat side faces the patient.
• Walkers: Patient stands inside the frame; standard walkers must be lifted, not slid; step with the weaker leg first.
• Crutches: Maintain a 2–3 finger gap at the armpit; never bear weight in the axilla (risk of crutch palsy).
• Stairs: "Up with the good, down with the bad."
• Gait belt: Stand on the weaker side, grasp from behind palm-up; never use for non-weight-bearing patients.
• Match the device to the patient's weight-bearing status — wrong device = fall risk.