retropulsion


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retropulsion

 [ret″ro-pul´shun]
1. a driving back, as of the fetal head in labor.
2. tendency to walk backward, as in some cases of tabes dorsalis.
3. an abnormal gait in which the body is bent backward.

ret·ro·pul·sion

(ret'rō-pŭl'shŭn),
1. An involuntary backward walking or running, occurring in patients with the parkinsonian syndrome.
2. A pushing back of any part.
[retro- + L. pulsio, a pushing, fr. pello, pp. pulsus, beat, drive]

retropulsion

/ret·ro·pul·sion/ (-pul´shun)
1. a driving back, as of the fetal head in labor.
2. tendency to walk backward, as in some cases of tabes dorsalis.
3. an abnormal gait in which the body is bent backward.

ret·ro·pul·sion

(ret'rō-pŭl'shŭn)
1. An involuntary backward walking or running, occurring in patients with parkinsonian syndrome.
2. A pushing back of any part.
[retro- + L. pulsio, a pushing, fr. pello, pp. pulsus, beat, drive]

retropulsion

involuntary backward walking/tottering; characteristic of Parkinson's disease; the patient is unable to prevent him- or herself from tottering backwards in response to a gentle frontal push (see festinant gait; propulsion)

retropulsion

a driving back, as of the fetal head during correction of a dystocia; performed manually or with a crutch during pauses between contractions and straining efforts.
References in periodicals archive ?
Sin embargo, al considerar las puntuaciones obtenidas por items se encontro una correlacion inversa estadisticamente significativa entre las puntuaciones obtenidas en los items para la evaluacion de luria (r=-0,281; p<0,01); bradicinesia (r=-0,233; p<0,05) y retropulsion (r=-0,255, p<0,05) y la longitud de dicho alelo.
Key imaging features and aetiologies of pathological Key imaging features: * Loss of vertebral height on AP and lateral views involving both anterior and posterior vertebral body wall * Interpediculate widening * Possible retropulsion of vertebral body into spinal canal Aetiologies: metastatic carcinoma, multiple myeloma, Langerhan histiocytosis
12,18] A variety of devices have also been designed to minimize stone retropulsion and increase ureteroscopic efficiency.
2) Two of the following 9 characteristics must be present for gait dysfunction to be attributed to NPH: decreased step height, decreased step length, decreased gait velocity, increased trunk sway, wide base of support, toes turned outward on walking, retropulsion (spontaneous or provoked), en bloc turning (> 3 steps for 180[degrees]), and impaired walking balance defined as > 2 corrections out of 8 steps on tandem gait.
This straighter posture, may be related to hand support on the handlebar, which leads to scapular retropulsion and thoracic intervertebral extension.
Physical examination revealed that the man's left eye was grossly proptotic with resistance to retropulsion.
There are tabs on the anterior surface which prevent retropulsion and have holes which may be used for placing screws in revision or special circumstances.
Use of the Stone Cone for prevention of calculus retropulsion during holmium: YAG laser lithotripsy: case series and review of the literature.
Exclusions for both trials included a suspicion of neoplasm in the vertebral body, substantial retropulsion of bony fragments, medical conditions that would preclude surgery, and an inability to obtain consent or conduct follow-up.
Retropulsion of the cage is a possible complication, but is more common in PIF.
The pull test, in which the patient is informed about what to expect and then briskly pulled backward or forward at the shoulders, is used to assess the degree of retropulsion or propulstion.
Al ingreso al servicio de urgencias, entre los hallazgos positivos al examen fisico, se encontraron: limitacion para la mirada vertical hacia abajo, inestabilidad postural con aumento en el poligono de sustentacion, tendencia a la retropulsion y disartria.