medi M.4s OA Comfort Knee Brace — photo 1

medi M.4s OA Comfort Knee Brace

Left / XS / Varus
$1,380.00
$1,380.00
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medi M.4s OA Comfort Knee Brace — photo 1
  • medi M.4s OA Comfort Knee Brace — photo 1
  • medi M.4s OA Comfort Knee Brace — photo 2
  • medi M.4s OA Comfort Knee Brace — photo 3
  • medi M.4s OA Comfort Knee Brace — photo 4
  • medi M.4s OA Comfort Knee Brace — photo 5
medi M.4s OA Comfort Knee Brace

medi M.4s OA Comfort Knee Brace

$1,380.00
$1,380.00

The M.4s® OA comfort does two things in one rigid brace. It unloads the worn side of the knee on the 3-point principle, and it stabilises the joint on medi's 4-point principle with a rigid frame down each side.

It is for severe medial or lateral gonarthrosis of at least grade III combined with ligament instability, for unloading one compartment before a high tibial osteotomy as a brace test, for painful stress fractures such as at the tibial head, for post-operative relief after cartilage surgery, chondroplasty, meniscus refixation or a realignment osteotomy, for heavy overloading of one compartment, and for permanent relief where surgery is ruled out.

Taking weight off the painful side of the joint is what reduces the pain, and medi notes that some people improve gradually rather than straight away. The frame is ultra-flat, light and pre-shaped to the leg so it resists twisting; a movable thigh clamp brings it into proper contact; a double-layer padding cover over the bony bumps at the sides of the knee cuts down rubbing; and anti-slip pads hold the position. Wedges set extension, flexion and immobilisation in steps.

Is this the right one for you?

Choose this if the diagnosis is arthritis in the knee. Unloader braces shift weight off the worn side of the joint; warming compression supports ease the ache and stiffness.

Everyday ache or swelling? medi Genumedi E+motion Knee Support is a lighter compression support.

Torn ligament, or repaired one? medi M.4s PCL Dynamic Knee Brace is a rigid frame brace built to protect the ligament.

Side
Size
Correction

Size & Fit Guide

Pickup available at 7225 Woodbine Ave

Usually ready in 2-4 days

medi M.4s OA Comfort Knee Brace

Left / XS / Varus

7225 Woodbine Ave

Pickup available, usually ready in 2-4 days

7225 Woodbine Ave
Suite 104
Markham ON L3R 1A3
Canada

4168369978
  • 3-point pressure relief of the affected compartment (varus or valgus)
  • 4-point rigid-frame stabilization
  • Movable thigh clamp for perfect leg contact
  • Double-layer condylar padding for comfort
  • Ultra-flat, lightweight, torsion-resistant frame
  • Avional (an aluminium alloy, used for the frame and hinges)
  • Velour
  • Polyester
  • Polyurethane foam
  • Severe medial or lateral gonarthrosis (osteoarthritis in one half of the knee) of at least grade III, combined with ligament instability
  • Unicompartmental relief before a high tibial osteotomy (brace test)
  • Relief of painful stress fractures, for example at the tibial head
  • Cartilage surgery, chondroplasty, meniscus refixation or displacement osteotomy needing post-operative relief of the medial or lateral compartment
  • Strong overloading of the medial or lateral compartment
  • Permanent relief where surgery is contraindicated

Not suitable for: combined medial and lateral osteoarthritis, meaning wear on both sides of the joint.

This is a medical-grade orthopaedic brace that incorporates rigid structural support. Braces and orthoses built with rigid components are usually covered under Canadian extended health benefit plans (e.g. Sun Life, Manulife, Canada Life, Blue Cross, Green Shield Canada) when accompanied by a valid prescription from your physician or nurse practitioner. It may also qualify as an eligible medical expense under the CRA's Medical Expense Tax Credit. We're happy to prepare an itemized estimate for your insurer — use Get an Insurance Estimate for this item, or add several to your cart and request one for everything at once. No charge, and it's not an order. Coverage details, annual limits, and prescription requirements vary by plan, so please confirm your specific benefits with your provider and keep your prescription and itemized receipt for your claim.

  • Correction is the side of the knee the brace takes weight off: Varus for a bow-legged knee, where the inner side of the joint is worn; Valgus for a knock-kneed one, where the outer side is. Your prescriber says which.

Check the size chart below. If your measurements don't fit a size on it, contact us and we'll help.

How to measure for this brace
SizeXSSMLXLXXL
Thigh (cm)15 cm above the middle of the kneecap31 – 3737 – 4545 – 5151 – 5757 – 6565 – 74

Side is the leg the brace is worn on. Correction is the alignment it is made for: varus alignment is bow-leg, which loads the inner (medial) side of the knee, and valgus alignment is knock-knee, which loads the outer (lateral) side. If your prescription names the alignment or the affected compartment, follow it. If you're not sure which one you need, ask your prescribing clinician - your alignment is not something we can determine for you.

Option guide
  • Hand wash only, in lukewarm water (about 30°C/86°F) with a mild detergent
  • Close all hook-and-loop (velcro) fasteners, straps, and zippers before washing to protect the fabric
  • Do not use fabric softener, bleach, or harsh chemicals; do not dry clean
  • Remove and clean any removable pads or cushions separately with water or mild soap
  • Air dry fully -- do not tumble dry, use a hair dryer, or dry in direct sunlight
  • Apply skin creams or lotions after removing the support in the evening, not right before putting it on, since they can affect the material's properties

medi publishes these steps for putting the brace on. A rigid unloader is set up by a fitter first; ask to be shown once before doing it alone.

  • Open all the straps and pull the numbered ends out of the strap eyelets, closing each hook-and-loop fastener back on itself so the straps do not catch.
  • Sit on the edge of a chair, spread the brace around the affected leg and bend the knee slightly.
  • Position the brace so the wedges you can see from the front are level with the top edge of the kneecap, and check it is not on back to front.
  • Close the lowest strap at the front and the top strap at the back, pressing the hinges gently backwards.
  • Close the lower strap at the back of the thigh, checking that the side hinges sit slightly behind the side middle line of the knee.
  • Close the upper front lower-leg strap, then the back lower-leg strap, and last the front thigh strap.
  • Take a few steps or bend the knee a few times to check the fit, readjusting the straps in the same order if needed.

If wearing the brace causes excessive pain or discomfort, take it off and contact your doctor or fitter.

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