mechanical instability


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mechanical instability

A measurable alteration of joint opening due to disruption of one or more of the joint’s mechanical stabilisers (e.g., the capsule, tendons, muscles or bones).

mechanical instability

Orthopedics Instability where injury to a joint results in pathological laxity. See Instability. Cf Functional instability.
References in periodicals archive ?
Early degradation of the screws leads to mechanical instability resulting in nonunion and osteolysis of the three carpal bones.
This qualifies it for avoiding three major drawbacks of calcium hydroxide, Material resorption, Mechanical instability and failure of preventing microleakage.
The prevalence of mechanical instability in the subjects in this study was slightly higher (33%) than that reported in the literature for ankle injuries in sport in general (10-30%), and higher than the reported prevalence for ankle injuries in rugby players (9-15%).
Indications for lateral ligamentous reconstruction include persistent symptomatic mechanical instability and failed functional rehabilitation.
5 um can be explained by temperature oscillation and large negative trend by mechanical instability.
Mechanical instability can cause pain in the bones, joints, muscles, or ligaments.
This is a convincing demonstration of a most unusual application of mechanical instability in plants," adds Charles R.
Garn and Newton (1988) suggested an impairment in postural sway may also occur consequent to any mechanical instability of the joint caused by joint malalignment, or neuromuscular factors other than proprioception as suggested by findings of Friden et al (1989).
The instrument he used had crystal spectrometers of unnecessarily high wavelength resolution and inherent mechanical instability.
Ongoing mechanical instability may be a cause of pain in spinal cord injury.
19) Most common symptom of chronic dislocation of DRUJ would be pain in the wrist often associated with symptoms of mechanical instability, including weakness and a joint clunk.