functional instability

functional instability

Orthopedics A joint instability that exists when neuromuscular deficits lead to repeated episodes of instability, which may occur with/without mechanical instability; FI is associated with impairments in postural control, joint position sense, joint conduction velocity, strength. See Instability. Cf Mechanical instability.
References in periodicals archive ?
3) Surgical intervention is considered standard management of ACL rupture in the young, athletic patient with functional instability.
Researchers investigated what contributes to this functional instability of the ankle even after the tissue was already healed completely.
The Etiology and Prevention of Functional Instability of the Foot.
A (Answer) I suspect the dog is really not having a seizure episode but is just reacting to the pain and functional instability of his rear end when trying to rise up.
However, the present study would not be generalized conclusively to the individuals with general joint laxity who potentially have mechanical instability of the ankle joint, as a conclusion has not been reached as to the possible association between mechanical instability and functional instability (Richie, 2001).
1995) The contributions of proprioceptive deficits, muscle function, and anatomic laxity to functional instability of the ankle.
The contribution of proprioceptive deficits, muscle function, and anatomic laxity to functional instability of the ankle.
This narrative literature review examined the evidence base concerning the relationship of impaired proprioception to the etiology and pathogenesis of functional instability of the ankle joint.
Estimates by De Carlo and Talbot (1986), Gross (1987), Karlsson et al (1996) and Lentell et al (1990) suggest that approximately 25-40 per cent of cases who have sustained ligamentous ankle injuries will subsequently develop a residual disability, termed functional instability, a classical term introduced by Freeman et al.
2) Eighty percent of acute ankle sprains make a full recovery with conservative management, while 20% of acute ankle sprains develop mechanical or functional instability resulting in chronic ankle instability.
However, previous studies differentiated participants based on ankle sprain history, with little or no consideration of current functional instability status (Jerosch and Bischof 1996, Refshauge et al 2003).
The chief complaint is usually that of functional instability and not pain.

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