mechanical instability


Also found in: Medical.

mechanical instability

[mi′kan·ə·kəl ‚in·stə′bil·əd·ē]
(meteorology)
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The explanation is straightforward: The reason Threadripper has four dies under the hood with only two in use is because leaving them off would create mechanical instability when the heatsink is mounted.
However the osseointegration which is defined as structural and functional bonding between living bone and the surface of implants is still not sufficient to which may ultimately lead to mechanical instability and implant failure osseointegration.
Athletes with a complete rupture of the lateral ankle ligaments implying severe mechanical instability on ultrasound examination were also excluded from this study.
Stabilometry recordings in functional and mechanical instability of the ankle joint.
The physician must always rule out pain caused by ongoing mechanical instability (bony, ligamentous or both).
Our observations are supported by an animal study which also stated poor osseointegration when using magnesium-based screws resulting in mechanical instability [15].
The compound exhibits poor bonding to dentin, mechanical instability and continued resorption after placement.
The conditions for this mechanical instability depend on the strength to break the fibril and the intensity of the elastic strain energy that is the potential energy accumulated in the structure until the fibril is broken.
Inclusion criteria were: (1) experience of at least one unilateral acute ankle sprain without fracture which resulted in pain, swelling, and temporary use of crutches (but not in the past 3 months) [5,21]; (2) at least two episodes of the ankle "giving way" in the past 6 months [5,11]; (3) no participation in the rehabilitation program at the time of study [5,7,11,21]; and (4) no evidence of mechanical instability [25] as evaluated by an orthopaedist using anterior drawer test or talar tilt test [3].
Mechanical instability is the increase in accessory movement (arthrokinematic motion that cannot voluntarily be produced, e.
Functional rehabilitation has a high probability of success in functional ankle instability; however, the likelihood of success is decreased with mechanical instability, peroneal weakness, or proprioceptive deficits.
However, the utility of PLOT columns has been significantly limited by the mechanical instability of the particle layers.