Knee scooters
Ask your surgical team before buying a knee scooter — it's built for a foot or ankle injury, not a knee that's the surgical site itself. If they clear it, get the standard steerable model below; step up to the all-terrain version only if you'll actually be rolling over gravel, grass, or a driveway. Renting almost always beats buying for a typical 2–6 week recovery.
3 knee scooters we checked
Drive Medical Adjustable Steerable Knee Walker Scooter with Basket
$171.94 checked 2026-07-27
- Weight capacity: 350 lb.
- Handle height: 31-40"
- Wheels: 8-inch swivel-steer front casters
- HCPCS reference: E0118 (crutch substitute, lower leg platform, with or without wheels)
Best for: most people — the standard steerable knee scooter DME suppliers and rental companies actually stock.
The DMECS-classified Drive Medical steerable line is the standard 4-wheel knee-scooter shape most DME suppliers and rental companies stock -- steel frame, swivel casters up front for steering, removable basket, adjustable to fit a wide range of user heights.
View on Amazon
Medline All-Terrain Knee Walker, 10" Pneumatic Tires
$218.36 checked 2026-07-27
- Weight capacity: 350 lb.
- Wheels: 10-inch pneumatic (air-filled) tires
- HCPCS reference: E0118 (crutch substitute, lower leg platform, with or without wheels)
Best for: rolling over gravel, grass, or an uneven driveway rather than flat indoor floors.
Same 350 lb. weight rating as the standard pick, but air-filled 10" tires instead of hard casters -- the upgrade that's worth the extra cost only if you're rolling over gravel, grass, or an uneven driveway rather than flat indoor floors.
View on Amazon
Medline Economy Knee Walker, 8" Wheels
$126.99 checked 2026-07-27
- Weight capacity: 350 lb.
- Wheels: four 8-inch wheels
- HCPCS reference: E0118 (crutch substitute, lower leg platform, with or without wheels)
Best for: keeping cost down when you don’t need a basket or a premium finish.
Same manufacturer and 350 lb. weight rating as the all-terrain pick above, no basket or premium frame finish -- the cheapest full-size 4-wheel knee scooter that came back DMECS-classified under Medline's own listing in our search.
View on AmazonFitment: height, weight capacity, and steering
- Weight capacity: all three picks above are rated to 350 lb. — check that number against the actual person, since it's a structural spec on a rolling frame, not a suggestion.
- Height range: on the standard steerable pick, handle height adjusts 31-40" and the knee-pad platform adjusts 16.5-20.5" — between the two, that model alone spans most adult heights. (Every knee scooter adjusts in stages like this; check the specific range on whichever listing you're buying.)
- Steering: the front wheels pivot independently of the frame, so it turns tighter than a walker's rigid frame — the point in a bathroom or narrow hallway. Dual hand brakes are standard across all three picks.
Weight caps, height ranges, and wheel specs above are pulled directly from each product's own Amazon listing — Medicare's fee-schedule and utilization data don't include product specs, only the coverage facts below.
When a knee scooter is the wrong choice
Knee scooters are designed for a lower-leg, foot, or ankle injury: the injured leg's knee rests on the padded platform, and you push and steer with the other leg. After a knee replacement, at least one knee is the surgical site itself — resting weight on a rolling platform is a different demand than standing behind a walker, so confirm with your surgical team whether that's something they want during your specific recovery window.
There's also a balance and coordination demand a stationary walker or rollator doesn't have: you're steering and braking with your hands while your weight is on one leg and a platform that rolls. If balance, coordination, or grip strength is a real concern, a walker (already covered with a prescription — see the checklist) is the steadier default. That mismatch is why this site's own checklist flags a knee scooter as optional, not standard, for knee replacement specifically.
What Medicare actually pays
Knee scooters have no dedicated HCPCS code. The closest match, E0118 ("crutch substitute, lower leg platform, with or without wheels"), has zero entries in the Medicare DMEPOS fee schedule and zero national claims in DY2024.
CMS's own policy article describes the code as covering either a strap-on lower-leg platform or a wheeled platform device the beneficiary propels with the sound limb — so a knee scooter fits the code's description, it just isn't a benefit Medicare pays toward. In practice this is a cash purchase or a short-term rental, not something billed to Medicare with a prescription.
Recall history
FDA has recorded 2 distinct knee-walker safety events: a 2012 Invacare/Kenstone Metal knee walker (rod supporting the knee pad could break or bend under load, risking a collapse) and a 2024 Medical Depot "Nitro Glide" knee walker, still open (the tiller can separate from the base/caster assembly, risking a fall).
The 2024 event alone appears as 3 separate records — one general device-recall entry plus a matching enforcement-classification entry for each of its two color variants (blue and red) — so the underlying dataset lists 4 total records for these 2 real-world actions. The 2012 event is resolved (status: Terminated); the 2024 event is not (status: Open/Ongoing, FDA Class II). Neither recall record mentions a reported death. CPSC's consumer-recall database returned zero hits naming a knee walker under the same search terms — this looks like an FDA-medical-device-regulated recall history with no separate CPSC consumer-product action, not a gap in our search.
None of the three picks above (Drive Medical, Medline) match either recalled brand or model. We searched federal recall databases using general terms like walker, rollator, shower chair, and bed rail — there's no dedicated "knee scooter" search, so the 2 events above surfaced incidentally, not from an exhaustive knee-scooter-specific search. Before buying secondhand or accepting a hand-me-down, check the exact brand and model yourself at CPSC's public recall search and FDA's device recall database — especially the hand brake, tires, and steering lock, per the borrowing checklist.
Rent or buy?
These three picks run $126.99–$218.36 to buy outright, verified live against Amazon on 2026-07-27. For a typical 2–6 week recovery, renting usually beats buying — see rent vs. buy: knee scooter, ice machine, hospital bed for the full break-even math against real rental rates.
Go deeper
The full knee-replacement recovery checklist
Every item from before-surgery through weeks 2–6, with the same covered/buy/rent/borrow flags.
Rent vs. buy: knee scooter, ice machine, hospital bed
The break-even math on the three priciest optional items after knee replacement.
The borrowing checklist: check recalls first
What to check on a knee scooter (or anything else) before you accept it secondhand.
Sources
- CMS DMEPOS Fee Schedule, July 2026 release (DME26-C) — confirms no purchase-fee entry for E0118
- CMS HCPCS Level II quarterly file, July 2026 release — E0118 code description
- CMS DMEPOS utilization by Geography and Service, DY2024 — zero national claims confirmed live via data.cms.gov API
- Canes and Crutches – DME MAC Policy Article (A52459), LCD L33733 — source of the E0118 device description quoted above
- Palmetto GBA DMECS Product Classification List (Canes/Crutches) — PDAC-reviewed brand/model matches for E0118 — Drive Medical and Medline model families named in the pick cards above
- openFDA Device Recall database — search term 'walker'; 2 knee-walker-specific records
- openFDA Device Enforcement database — search term 'walker'; 2 knee-walker-specific records (color-variant classifications of the 2024 event)
- CPSC SaferProducts.gov Recall API — same search terms, zero knee-walker-specific hits
- Amazon Creators API — live product data (title, price, ASIN, specs, image) fetched 2026-07-27; prices change after that date