Activity Level
This device is ideally suited to Activity Level 2 users who can benefit from the MKL in situations
where more security is required (eight limits apply, see Technical Data).
Additionally some Activity Level 1 and 3 users might also benefit from the MKL in similar
situations. But any such decision should be made with sound and thorough justification.
Activity Level 1
Has the ability or potential to use a prosthesis for transfers or ambulation on level surfaces at fixed
cadence. Typical of the limited and unlimited household ambulator.
Activity Level 2
Has the ability or potential for ambulation with the ability to traverse low-level environmental barriers
such as curbs, stairs, or uneven surfaces. Typical of the limited community ambulator.
Activity Level 3
Has the ability or potential for ambulation with variable cadence. Typical of the community ambulator
who has the ability to traverse most environmental barriers and may have vocational, therapeutic, or
exercise activity that demands prosthetic utilization beyond simple locomotion.
This device is not suitable for use in competitive sports events. These types of users might be
better served by a specially designed prosthesis that is optimized for their needs.
Clinical Benefits
• Weight-activated stance control and adjustable swing control provide a smooth, safe gait
with a free knee.
• Manually-operated lock allows patient to lock the knee for additional security when needed
Contraindications
This device is not suitable for:
• Users with extreme muscular weakness, contractures that cannot be correctly
accommodated, or proprioceptive dysfunction including poor balance.
• Users with contralateral joint instabilities or pathology.
• Users with complicated conditions involving multiple disabilities.
• Users, including bilateral transfemoral amputees, who require a yielding function from the
knee to descend stairs or to sit. This can result in damage of the brake mechanism that can
adversely affect stability and durability.
• Users with poor hand function may find difficult to operate the manual knee lock.
Users must be given gait training before using this device.
Make sure that the user has understood all instructions for use, drawing particular
attention to all maintenance and safety information sections.
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