Which of the following statements best describes the sequence of steps in the three-point gait pattern for crutch walking?

Appeared in: BTSC Staff Nurse 31 July-2025

Explanation

The three-point gait is necessary when a patient cannot bear weight on one leg.
The correct and safest sequence begins by establishing a stable base with the crutches.
The sequence is: 1) Both crutches move forward, 2) The affected (injured) leg moves forward, and 3) The unaffected (strong) leg moves forward.
This ensures the body's weight is supported by the arms and the crutches when the legs are in motion, preventing falls and protecting the injured limb.

Option B: Moving the affected leg before placing the crutches is incorrect and highly unstable. It places weight on the injured limb without any support, increasing the risk of pain, further injury, and falls.
Option C: Moving the unaffected (strong) leg before the affected (weak) leg is incorrect for this gait pattern. The purpose is to advance the weak side with support first.
Option D: Starting the movement with a leg instead of the crutches is incorrect for the three-point gait. The crutches must be advanced first to provide a stable base of support for the subsequent movements.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Crutch Walking: Three-Point Gait as background academic context rather than a clinical decision trigger.
Patient safety is the primary concern. Teaching the correct gait sequence is crucial to prevent falls and further injury.
Nurses must ensure crutches are properly fitted (2-3 finger widths between axilla and crutch pad, 15-30 degree elbow flexion) to prevent nerve damage (brachial plexus injury) and improve stability.
What if the patient is non-weight-bearing (NWB)? The sequence is similar, but the affected leg does not touch the ground. It is advanced forward with the crutches, and then the unaffected leg swings through.

How to Approach the Question

First, identify the core concept: the sequence of the 'three-point gait' for crutch walking.
Recall the purpose of this gait: to support a weak or non-weight-bearing leg.
Think about safety and stability. The assistive device (crutches) must be positioned to provide support before the body's center of gravity shifts.
Therefore, the crutches must move first to create a stable base.
Next, the affected leg moves into this supported base.
Finally, the strong leg moves to complete the step.

Concept Tested & Keywords

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E6 Nursing Fundamentals Potter Perry 12e Part 4 pp. 107-109, 106-108

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