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impaction

   Also found in: Dictionary/thesaurus, Medical, Legal, Idioms, Wikipedia 0.01 sec.
impaction [im′pak·shən]
(medicine)
The state of being lodged and retained in a body part.
Confinement of a tooth in the jaw so that its eruption is prevented.
A condition in which one fragment of bone is firmly driven into another fragment so that neither can move against the other.


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When this occurs, waste will not pass beyond the fecal impaction and pressure will begin to build on the abdomen and lower back.
Topics of the 34 chapters include unicompartmental knee arthroplasty, rotational alignment, the minimally invasive subvastus approach, cementless fixation, soft tissue balancing in revision arthroplasty, articulating spacers for infected knee replacements, impaction bone grafting, and metal augments.
1,2) Common sites of impaction are the lower tonsillar pole, base of the tongue, vallecula, and cervical esophagus.
 
 
 
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