How to Climb Stairs Safely: Cane, Bad Knee, or Surgery

Why stairs deserve a technique

One in four adults 65 and older falls each year, and falls are the leading cause of injury and injury death in that age group.⁴ A fall on a flat floor is bad. A fall on stairs adds height and hard edges, which is why physical therapists teach stair technique as a skill rather than leaving it to habit.

The technique is short, it works for a bad knee, a healing hip, a cane, or plain unsteadiness, and it fits on an index card. The rest of this guide covers the stairs themselves, the person helping, and the honest moment when the stairs stop being the right plan.

The rule: up with the good, down with the bad

The American Academy of Orthopaedic Surgeons (AAOS) spells out the sequence for anyone with an injured or weak leg.¹

Going up: “Step up on your good leg first, then step up on the injured leg.”¹ The strong leg lifts you; the weak leg follows to the same step.

Going down: place the cane on the step below first, then the injured leg, then the good leg, “which carries your weight.”¹ The strong leg stays on the higher step and lowers you under control.

Both feet land on each tread before you move to the next one. Nobody is grading you on speed. The whole point is that the weak leg never has to hold your full weight alone on a single step, going either direction.

Cane, crutches, walker: what changes

With a cane

Hold the cane “in the hand opposite your injured leg,” the AAOS says, and “use your free hand to grasp the handrail.”¹ Going up, the good leg steps first, then the injured leg and cane together. Going down, cane first to the lower step, then the injured leg, then the good leg.¹

If the only handrail is on the same side as your strong hand, use the rail and carry the cane in the other hand. The rail is the better support. This is one of the two reasons a second handrail matters, covered below.

With crutches

Where there is a handrail, “hold the handrail with one hand and tuck both crutches under your armpit on the other side.” Going up, “lead with your good foot, keeping your injured foot raised behind you.” Going down, “hold your injured foot up in front, and hop down each step on your good foot.”¹ With no rail, both crutches go under the arms and you hop. And if you feel unsteady at all, the AAOS gives the honest alternative: sit on each step and scoot up or down with the injured leg out in front.¹

With a walker

After a knee or hip replacement

Stairs come sooner than most people expect. The AAOS says that before you leave the hospital you should be able to walk with an assistive device on a level surface and “climb up and down two or three stairs.”² That is the test; it is not a full flight twice a day.

The same guidance suggests limiting the stairs early and, if your home has them, that “you may need to temporarily change rooms,” setting up a bedroom on the main floor during recovery.² When you do climb, it is exactly the rule above: good leg up first, operated leg down first, one step at a time, hand on the rail. Your therapist clears you for normal stair use; do not clear yourself. Our guide to preparing your home for joint replacement recovery covers the main-floor setup.

The stairs themselves

Technique only works on a staircase that is set up for it. The CDC’s home fall-prevention checklist asks four questions about stairs.³

• Are there papers, shoes, books, or other objects on the stairs? “Always keep objects off the stairs.”³ The stairs are not a shelf for things going up later.
• Are some steps broken or uneven? “Fix loose or uneven steps.”³ One riser a half-inch taller than the rest is a classic trip.
• Is there a light and a light switch at the top and bottom? If not, add them, and a motion night light on the stairs is cheap insurance.³
• Are the handrails loose, broken, or on only one side? Fix loose rails, and make sure rails are on both sides and as long as the stairs.³

What a proper handrail is

The residential building code, adopted in most of the country, sets the standard, and a city building department’s handout puts the numbers plainly: a handrail is required on at least one side of any flight with four or more risers, mounted “not less than 34 inches” and “not more than 38 inches” above the step edges, continuous for the full length of the flight, with ends that return to the wall or end at a post.⁵ It also has to be graspable: a round rail of about 1-1/4 to 2 inches, or a shaped rail you can close your hand around.⁵

The code says one rail. For an older person, install two. With a rail on each side you can use your stronger arm whichever direction you are going, you have something to grab if you start to go sideways, and a cane user gets a rail no matter which hand is free. A second rail is a half-day job for a handyman and the cheapest meaningful stair upgrade in the house. Our indoor stair railing guide covers mounting, and the general room-by-room check is in stair safety for seniors.

Two more cheap fixes: a strip of contrasting tape on the edge of the top and bottom steps so your eye finds them, and shoes with a back and a sole on the stairs, not slippers. Our guide to lighting for aging eyes explains why the top step vanishes in low light.

If you are the one helping

Helping someone on the stairs is where caregivers get hurt. A forum caregiver described the moment exactly: “someone has to act instantaneously to prevent a fall, and that person can easily be injured and go down as well.”⁶

The position rule is simple: stay on the downhill side. Going up, you are one step below them. Going down, you are one step below them, facing them. If they lose balance, they fall toward you and the rail, and you steady them rather than catching their whole weight from above. Put a gait belt around their waist and hold it; never grab an arm, which can dislocate a shoulder, or a sleeve, which tears. They hold the rail, you hold the belt and the other rail or the wall, and you move on a count, one step at a time.

When the stairs are no longer the plan

Fear of the stairs almost always follows a near-miss, and the fear is its own risk: a person who creeps, grips, and hesitates on a stair is less steady than one who moves with a practiced rhythm. The caregiver forum is full of the same arc: an injury makes the stairs “pretty scary,” and the family realizes it is “another wake-up call to think about a more elder friendly house.”⁶

Three signals, any one of which means it is time to change the plan rather than the technique:

• A near-miss or a fall on the stairs, even without injury.
• Needing a helper to take weight, or the person sitting and scooting as a daily routine rather than a short-term bridge.
• Avoidance: a floor of the house that is no longer used because getting there is frightening.

The first move is a physical therapy evaluation for strength and balance, which is what fixes the technique and the fear together. The second is the house: a second rail, better light, a main-floor bedroom. The third is a stair lift, which our stair lift cost guide prices and our Medicare and Medicaid stair lift guide explains how to pay for. The order matters. Technique and rails are cheap and come first; the lift is the answer when they are not enough.

Key takeaways

• Up with the good, down with the bad, both feet on each step, hand on the rail. Cane in the hand opposite the weak leg.
• Never a walker on stairs. Crutches: rail in one hand, both crutches under the other arm; sit and scoot if unsteady.
• After surgery, two or three stairs is the discharge test; a main-floor bedroom gets you through the early weeks.
• Fix the stairs: nothing stored on them, even steps, a switch top and bottom, and a graspable rail on both sides at 34 to 38 inches.
• Helpers stay downhill with a gait belt, and if you must take their weight, the stairs are done.

What’s next

• Install the second rail: indoor stair railings for seniors.
• Choose the right aid for the landing-to-landing walk: cane, walker, or rollator.
• Recovering from surgery: preparing your home for joint replacement recovery.
• If the stairs are done: best stair lifts and the stair lift cost guide.

---

Reviewed by John Smith, CAPS, Certified Aging-in-Place Specialist. This guide is general safety information, not medical advice. After surgery or a fall, follow your own surgeon’s and physical therapist’s instructions, which take priority over anything here. A physical therapist can watch you on your own stairs and correct the technique in one visit.