What Are Crutches and When Are They Needed
Crutches are mobility aids designed to transfer weight from the legs to the upper body when walking is painful or unsafe. They are commonly recommended after lower‑leg injuries, surgeries such as knee or hip procedures, or for people with conditions that affect balance or weight‑bearing. Used correctly, crutches help maintain independence while protecting the injured limb and promoting safer movement patterns.
How Crutches Work and Why Proper Fit Matters
Crutches rely on your hands and arms to support part of your body weight, making correct sizing and technique essential. Poor fit or technique can lead to shoulder, wrist, or neck pain and increase fall risk. Understanding how crutches interact with your posture, balance, and everyday environment is the foundation of safe, effective use.
Common Types of Crutches
Underarm (Axillary) Crutches
The most familiar type, underarm crutches feature handgrips at about elbow height and supports that rest beneath the armpits. They offer stability and are suitable for both short‑term and longer‑term use when fitted correctly.
Forearm (Lofstrand) Crutches
These include a cuff that wraps around the forearm and a handgrip ahead of the body. By transferring some weight through the forearms, they can be more comfortable for prolonged use and may suit people needing steadier support over time.
Platform and Alternative Designs
Platform crutches have a larger surface area for the hand and sometimes a forearm strap, which can benefit people with limited wrist strength. Other specialized designs, like tripods or rolling crutches, serve specific needs based on balance, coordination, and injury type.
| Crutch Type | Best For | Typical Use Duration | Weight‑Bearing Notes |
|---|---|---|---|
| Underarm (axillary) | Short‑term injury, stable walking goals | Few weeks to several months | Partial weight‑bearing, as directed by a clinician |
| Forearm (Lofstrand) | \nLonger‑term needs, better weight distribution | Weeks to months or longer if needed | Can support more consistent weight transfer |
| Platform | Weak grip or wrist instability | Variable based on condition | Adjustable support tailored to ability |
How to Fit Crutches Correctly
Proper fit reduces strain and improves balance. While a clinician or mobility aid specialist can tailor adjustments, key checkpoints include:
- Handle height: Align with the wrist crease when arms hang loosely at the sides.
- Armpit clearance: Ensure a finger‑width or two of space under the armpit to avoid nerve pressure.
- Arm support: The elbow should bend slightly when gripping the handle.
- Tip safety: Use large, rubber tips that grip surfaces well and replace worn tips promptly.
Safe Techniques for Using Crutches
Learning the correct gait and posture helps prevent falls and overuse injuries. Move slowly, plan your path, and use rails or stable furniture for extra support when needed. Keep your weight supported by your hands rather than your armpits, and maintain an upright torso to avoid strain. Practice in a safe, clear area before navigating crowded or uneven spaces.
Basic Walking Patterns
Common patterns include three‑point and four‑point gaits. In a three‑point gait, both crutches and the injured leg move together, followed by the stronger leg. A four‑point gait involves moving each crutch and each leg in sequence, offering more stability. Your healthcare provider or physical therapist can demonstrate the pattern that best matches your balance and strength.
Safety, Comfort, and Common Risks
Repetitive stress on the wrists, shoulders, and neck can develop with improper use or prolonged reliance. Numbness or tingling in the hands may signal excessive pressure under the armpits. Using well‑fitted crutches, maintaining correct posture, and alternating seated rest with movement can reduce these risks. If you experience persistent pain or new balance issues, seek guidance from a clinician or therapist.
Practical Tips for Daily Use
- Plan routes in advance to avoid stairs or uneven terrain when possible.
- Use bags with crossbody straps to keep one hand free for support.
- Check tip condition and cleanliness regularly.
- Install temporary handrails or use sturdy furniture for support at home.
- Ask a clinician about safe ways to manage bathroom and showering needs.
When to Seek Professional Guidance
Ongoing discomfort, new numbness, or difficulty navigating everyday spaces are reasons to consult a physical therapist or occupational therapist. Clinicians can fine‑tune crutch height, recommend alternative aids, and design a safe mobility plan. Regular follow‑ups help ensure your crutches continue to meet your needs as your condition or recovery progresses.
Frequently Asked Questions
- How do I know if my crutches are the correct height? Stand upright with crutches at your side; the handgrips should align with your wrist crease when your arms are relaxed.
- Can I climb stairs with crutches? Many clinicians advise against climbing stairs with crutches unless you have specific training and a safe environment. Use stair rails or seek assistance whenever possible.
- How often should I replace my crutches? Inspect regularly for wear or damage. Replace them if the structure feels loose, tips are worn, or you experience new pain or instability.
- Are forearm crutches better for long-term use? Some users find forearm crutches more comfortable over time because they distribute weight differently, but suitability depends on injury, strength, and clinician recommendation.