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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
202
|
| pubmed:dateCreated |
1986-4-28
|
| pubmed:abstractText |
Non-cemented press fit prostheses require a high degree of surgical precision for success. Since components vary in size by millimeters, the optimum preoperatively-determined size becomes a vital factor in selecting the correct size at the time of surgery. The preoperatively-determined component size is useful only if the information is obtained in a reliable and reproducible manner. The proper sequence combines X-rays of known magnification and templates of corresponding magnification. X-ray magnification is not a constant value even if the X-ray tube is maintained at a standardized height. Variables such as patient size and positioning make magnification measurements a necessity for every X-ray taken. A dense lead plate was designed for this purpose because commercially-available devices are over-penetrated by the X-ray exposures routinely used for hip roentgenograms. Manufacturers can provide templates in varying magnifications. This makes it possible to obtain a high correlation between the preoperative choice and the actual size chosen at surgery.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Jan
|
| pubmed:issn |
0009-921X
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
302-6
|
| pubmed:dateRevised |
2005-3-3
|
| pubmed:meshHeading | |
| pubmed:year |
1986
|
| pubmed:articleTitle |
A device to measure X-ray magnification in preoperative planning for cementless arthroplasty.
|
| pubmed:publicationType |
Journal Article
|