A nurse is providing teaching about the use of crutches using a three-point gait to a client who has a tibia fracture.

Which of the following actions by the client indicates an understanding of the teaching?

The correct answer is choice B. Applying an orthotic to the client’s foot.

An orthotic is a device that supports or corrects the function of a body part.

In this case, an orthotic can help prevent foot drop, which is a common contracture deformity in immobile patients.

Foot drop occurs when the muscles that lift the foot become weak or paralyzed, causing the foot to hang down at the ankle. An orthotic can keep the foot in a neutral position and prevent shortening of the calf muscles and Achilles tendon.

Choice A is wrong because a trochanter wedge is used to prevent external rotation of the hip, not contracture. A trochanter wedge is a triangular-shaped pillow that is placed between the legs to keep them parallel and aligned.

Choice C is wrong because a towel roll under the neck is used to maintain proper cervical alignment, not contracture. A towel roll can prevent hyperextension of the neck and support the natural curve of the spine.

Choice D is wrong because a pillow under the knees can actually cause contracture of the knee joint by keeping it in a flexed position. A pillow under the knees can also reduce blood flow to the lower extremities and increase the risk of deep vein thrombosis.

Contracture is a permanent tightening of the muscles, tendons, skin, and surrounding tissues that causes the joints to shorten and stiffen.

Contracture can limit the range of motion and function of the affected body part. Contracture can be caused by inactivity, scarring, or diseases that affect the muscles or nerves. Prevention of contractures requires early diagnosis and initiation of physical medicine approaches such as passive range of motion exercises and splinting before contractures are present or while contractures are mild.

The correct answer is Choice d. Positioning both hands on the grips with his elbows slightly flexed.

Choice A rationale:

• Moving both crutches with the stronger leg forward first is incorrect for a three-point gait.This describes a two-point gait,which is used when a client can bear weight on both legs.In a three-point gait,the client bears weight on the unaffected leg and the crutches,not the stronger leg.
• This action would put excessive weight on the affected leg and could potentially compromise healing or cause further injury.

Choice B rationale:

• Supporting his body weight while leaning on the axillary crutch pads is also incorrect.This can lead to nerve damage in the armpits and should be avoided.
• The weight should be distributed through the hands and wrists,not the armpits.

Choice C rationale:

• Stepping with his affected leg first when going up stairs is incorrect and potentially dangerous.The client should lead with the stronger leg when going up stairs to maintain balance and control.

Choice D rationale:

• Positioning both hands on the grips with his elbows slightly flexed is the correct action for using crutches with a three-point gait.This allows for proper weight distribution,balance,and control of the crutches.
• It also helps to prevent fatigue and strain in the arms and shoulders.

Key points to remember about the three-point gait:

• Weight is borne on the unaffected leg and the crutches,not the affected leg.
• The crutches and the unaffected leg move forward together,followed by the affected leg.
• The client should look ahead,not down at their feet.
• The client should take small,even steps.
• The client should rest as needed.