English
M.4
s comfort
®
Intended Purpose
The M.4s comfort is a functional knee orthosis.
The product is exclusively to be used for the
orthotic fitting of the knee and only on intact
skin.
Indications
• Ruptures of the anterior or both cruciate
ligaments with accompanying injuries
• Isolated ruptures of the anterior cruciate
ligament
• Ruptures and/or instability of the collateral
ligaments
• After reconstruction of the anterior or both
cruciate ligaments
• For conservative treatment of knee joint
instability
Contraindications
None known at present.
Setting the flexion / extension limits
Extension limit wedge, silver:
0°, 10°, 20°, 30°, 45°
Flexion limit wedge, black:
0°, 10°, 20°, 30°, 45°, 60°, 75°, 90°
Can be immobilised at:
0°, 10°, 20°, 30°, 45°
For immobilising the orthosis first insert the
flexion wedge and then the corresponding
extension wedge. The medial (inside) and the
lateral (outside) wedge settings must always be
the same.
1 10° extension and 90° flexion wedges are
pre-installed in your knee brace
as standard (In the UK only 10° extension
wedges fitted, remainder included as spare
parts).
2 In order to change the wedges, press the joint
cover on the rear side (see profile) outwards.
3. You can change the wedges by removing the
tweezers from the joint cover and pulling the
wedges forwards (extension) or backwards
(flexion) out of the joint using the tweezers.
The wedges are accordingly labelled with
„FLEX" or „EXT" and the corresponding
degree. The wedges may also be
distinguished by the colour. Extension
wedges are silver, flexion wedges are black.
Push the new wedge from the front side
(extension) or from the back (flexion) into the
joint, so the markings „UP" on the joint and
the wedge are matched accordingly.
Upon proper locking you will hear a click
sound.
4. Move the joints of the orthosis to check the
position of the wedges. Put the tweezers back
into the mounting and attach the joint covers
by hooking the two noses of the joint cover
into the front side of the joint and then
pushing the cover onto the joint. The cover is
firmly attached if you hear a click sound.
Important notes
Only change the extension and flexion limits on
instruction from your doctor or orthotist. In
order to prevent hyperextension, always insert
extension wedges or 0° wedges. The wedges
define the exact excursion of the orthosis. In
difficult soft-tissue conditions, e.g. where the
soft-tissues are under compression, it may be
necessary to insert the larger wedge to limit the
joint movement to the desired excursion. In
addition, make sure that the orthosis joints are
correctly positioned: the middles of the joints
should be level with the upper border of the
patella. The joint must lie behind the midline of
the leg.
Shaping the orthosis
When shaping the orthosis, please ensure that
the joints stay parallel. This guarantees that the
orthosis will function well and run easily and
that there is no excessive wear.
Fastening the belt eyes
The belt eyes have been adequately fastened
and are, to some extent, deliberately mobile.
Please do not tighten the screws; they are tight
enough. If you apply too much force, you can
break off the screws.
Fitting instructions
• Open all the straps. Sit on the edge of a chair,