Knee orthosis medi M.4s PCL dynamic - Functional PCL orthosis - 4-point hard frame orthosis for treating injuries to the posterior cruciate ligament

The M.4s PCL dynamic is a functional knee orthosis. The orthosis enables conservative or postoperative care of patients with a (partial) rupture of the posterior cruciate ligament.

• Secure hold of the tibia thanks to the support pad
• Individual adjustability of the pad using the integrated rotary wheel
• Secure fit thanks to the patented physioglide joint

Product advantages

The active force applied via the support pad keeps the tibia in the desired position
Secure collateral stabilization through a solid frame
Extension and flexion limitation protects against harmful joint movements and relieves strain on injured structures
Limitation options:
Extension: 0°, 10°, 20°, 30°, 45°,
Flexion: 0°, 10°, 20°, 30°, 45°, 60°, 75°, 90°,
Immobilization: 0°, 10°, 20°, 30°, 45°
Optimum imitation of the rolling-sliding movement of the knee through patented physioglide joint technology

Mode of action

Changes to the extension and flexion limits can only be made as directed by your treating physician. To avoid hyperextension, extension wedges or 0° wedges must always be used.
The wedges give the orthosis the exact range of motion.
In difficult soft tissue conditions, due to soft tissue compression, it may be necessary to use a larger wedge to limit knee movement to the desired radius.
Also pay attention to the correct position of the orthotic joints: The middle of the joints should be at the level of the top edge of the kneecap.
The joint must be positioned behind the lateral midline of the leg.

Dressing instructions

Open all straps and close the Velcro back onto the webbing to keep it out of the way.
Pull out the knob on the calf cup. One click confirms the correct position. Pull the shell out to the back as far as it will go. Bend the leg to ~70° and pull the orthosis onto the injured leg.
Position the joints so that the center of the joint (the height of the extension wedges) is at the level of the upper edge of the kneecap. Make sure that the orthosis sits straight and not twisted on the leg.
First, fasten strap no. 1 and then fasten belt no. 2.
Keep your leg in a bent position and make sure the orthosis fits correctly.
The orthosis fits correctly when the centers of the joints are at the level of the top edge of the kneecap and are positioned slightly behind the lateral midline of the leg.
Now fasten the front thigh strap no. 3 and tighten it. Be careful not to position the orthosis too far forward.
Push the knob back in to activate the rotating mechanism. A click again confirms the correct position.
Now turn the wheel until the tibial tuberosity (protruding bone at the upper end of the shin) is at the same level as on the healthy leg. If necessary and for purely stabilizing purposes, please close the tibia strap. This may only ever be the last belt to be fastened.
Now move your knee slightly a few times and check again that the orthosis fits correctly. Possibly. correct the fit of the orthosis again.
The side indicators on the guide rails can be used as a reference for the position of the calf cup.

Carrying/application instructions

Changes to the extension and flexion limits can only be made as directed by your treating physician. To avoid hyperextension, extension wedges or 0° wedges must always be used. The wedges give the orthosis the exact range of motion. In difficult soft tissue conditions, due to soft tissue compression, it may be necessary to use a larger wedge to limit knee movement to the desired radius. Also pay attention to the correct position of the orthotic joints: The middle of the joints should be at the level of the top edge of the kneecap. The joint must be positioned behind the lateral midline of the leg.

Indications

• Conservative treatment after posterior cruciate ligament injury
• Postoperative treatment after posterior cruciate ligament reconstruction