This document discusses a new concept for knee replacements called a "damper knee". It proposes two approaches to adding shock absorption to knee implants by 1) manipulating soft tissues like ligaments and menisci or 2) utilizing synovial fluid as a damper between implant components. Maintaining the menisci and designing the implant to compress fluid through small pores could help absorb shock and improve range of motion, sports activities, and durability over solid synthetic replacements that lack this function. Properly engineering a damper into knee implants could help address the maintenance issues of current designs by more closely mimicking the native knee's balance of stability, mobility, strength and self-regulation.

1. MOJ Orthopedics & Rheumatology
Damper Knee
Volume 4 Issue 4 - 2016
Claude Bernard University Lyon, France
*Corresponding author: Khalifa Elmajri, Msc
Biomechanics Fellow center Albert Trillat, Hôpital de la
Croix-Rousse 103 Grande Rue de la Croix-Rousse, 69004
Lyon, France, Tel: +33641263324; Email:
Received: December 30, 2015 | Published: February 17,
2016
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yield effective margin of mobile security for each movement in
each gets. The solution passes by the Introduction and adoption
of damper or chock absorption concepts in the next generation
of knee replacement either by investment of the physiological
phenomena like a-Soft tissue manipulation, intervention
at the level of ligament and menisci. B- Physiological liquid
manipulation to undertake damper function, Using the Synovial
fluid interposition, or introduction of the synthetic material
damper conception, the component or an interposition between
the components, but for this the maintenance of the synthetic
material will be the issue of deal too. For the being while
hybrids solution could be tested, i.e. the use of the physiological
soft tissue or physiological fluid to add a damper effect to the
synthetic knee.
The menisci can be conserved in a way that allows the
implantation of the Tibial part deep to them on the Tibial
plateau. It’s a technical matter to distribute the loads between
the synthetic Tibial plateau component (PE in the center) and
the native menisci in the periphery. The synovial fluid can be also
invested to creat a damper effect, if the synthetic knee designed
to compress the fluid in a system that allows the absorption
of chock. It’s a technical matter to create a system utilize the
interposition liquid damper, during movement synovial fluid can
be managed to squeeze through a narrow pore in a box created
between the components of implant . These ideas would be of
interest for the range of painless motion, sport activities and
durability, also a larger margin of surgical manipulation will be
available to restore the normal function.
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The approach to replace the joint with solid synthetic
material without the conception of shock absorption will be
always a commitment of maintenance. The knee particularly
a damper dependent mechanical system because its normal
functions depends on very complex balance between, stability,
and mobility. It’s easy to create such system if it’s destined for
short use with minute to minute maintenance and adjustment.
Fortunately, the native knee assures these functions complexly
interrelated with strength, durability and without the need to
maintenance. Optimization of the superposition of the native
knee function on solid concept synthetic material is wasting of
time because native knee dynamically responds to the necessary
modification to accomplish its function, it’s the soft tissue which
Citation: Elmajri K (2016) Damper Knee. MOJ Orthop Rheumatol 4(4): 00142. DOI: 10.15406/
mojor.2016.04.00142