instability

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Related to patellofemoral instability: Jumper's knee

in·sta·bil·i·ty

 (ĭn′stə-bĭl′ĭ-tē)
n. pl. in·sta·bil·i·ties
The quality or condition of being unstable: economic instability; emotional instability.

instability

(ˌɪnstəˈbɪlɪtɪ)
n, pl -ties
1. lack of stability or steadiness
2. (Psychology) tendency to variable or unpredictable behaviour
3. (General Physics) physics a fast growing disturbance or wave in a plasma

in•sta•bil•i•ty

(ˌɪn stəˈbɪl ɪ ti)

n.
1. the quality or state of being unstable; lack of stability.
2. the tendency to behave in an unpredictable or erratic manner: emotional instability.
[1375–1425; late Middle English < Latin]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.instability - an unstable order
disorder - a disturbance of the peace or of public order
stability - a stable order (especially of society)
2.instability - unreliability attributable to being unstable
undependability, undependableness, unreliability, unreliableness - the trait of not being dependable or reliable
3.instability - a lack of balance or state of disequilibriuminstability - a lack of balance or state of disequilibrium; "a hormonal imbalance"
disequilibrium - loss of equilibrium attributable to an unstable situation in which some forces outweigh others
4.instability - the quality or attribute of being unstable and irresoluteinstability - the quality or attribute of being unstable and irresolute
unsteadiness - the quality of being unsteady--varying and unpredictable
shakiness - the quality of being unstable and insecure; "the shakiness of the present regime"
stability, stableness - the quality or attribute of being firm and steadfast

instability

instability

noun
1. The quality or condition of being physically unsteady:
2. The quality or condition of being erratic and undependable:
Translations
عَدَم إسْتِقْرارعَدَمُ الثَّبَاتُ
nestálost
uligevægtustabilitetustadighed
epävakaisuus
nestabilnost
óstöîugleiki
不安定
불안정
nestabilitāte
instabilitet
ความไม่แน่นอน
dengesizlikkararsızlık
tính không ổn định

instability

[ˌɪnstəˈbɪlɪtɪ] Ninestabilidad f

instability

[ˌɪnstəˈbɪlɪti] n
[place, situation] → instabilité f; [economy] → instabilité f
political instability → instabilité politique
economic instability → instabilité économique
[person] → instabilité f
mental instability → instabilité mentale

instability

nInstabilität f; (of character also)Labilität f

instability

[ˌɪnstəˈbɪlɪtɪ] ninstabilità

instability

(instəˈbiləti) noun
lack of stability or steadiness eg of personality.

instability

عَدَمُ الثَّبَاتُ nestálost ustabilitet Instabilität αστάθεια inestabilidad epävakaisuus instabilité nestabilnost instabilità 不安定 불안정 instabiliteit ustabilitet niestałość instabilidade нестабильность instabilitet ความไม่แน่นอน dengesizlik tính không ổn định 不稳定

in·sta·bil·i·ty

n. inestabilidad.

instability

n inestabilidad f
References in periodicals archive ?
Other pathologies that may affect the patella during TKA include patellofemoral instability and implant's failure [17].
Hermann et al.8 concluded that knees diagnosed with MCL tears should be evaluated for patellofemoral instability, as temporary patella dislocation could have been caused by the same injury.
In our patients; Superficial wound infection was observed in 1.12% of our patients, fatal pulmonary embolism in 0.18% of them, symptomatic pulmonary embolism in 1.25%, symptomatic deep vein thrombosis in the operated leg in 6.25%, wound site serohematoz discharge in the first five days in 0.62%, peroneal transient nerve paralysis in 2.18%, prosthesis infection in 0.62%, patellofemoral instability in 14.6%, periprostatic fracture in 1.25%, heterotopic ossification in 6.87%, limitation of movement in 10.3% (range of movement less than 90 degrees), patella fracture in 2.81%, patellar clunk syndrome in 3.75%, unexplained pain in 0.62% and loosening in 0.93% of them, peroperative posterior cruciate ligament rupture in 0.31%.
Patellofemoral instability (PFI) occurs when the patella disengages completely from the trochlear groove.