15979082

Source:http://linkedlifedata.com/resource/pubmed/id/15979082

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0022742, umls-concept:C0029266, umls-concept:C0205296, umls-concept:C0205463, umls-concept:C0521116, umls-concept:C1184482, umls-concept:C1705241, umls-concept:C1705242, umls-concept:C1707689
pubmed:issue	9
pubmed:dateCreated	2006-6-9
pubmed:abstractText	The patella groove of total knee replacements has evolved from a groove with a neutral orientation to a groove with a lateral (also referred to as valgus) orientation. In this study the authors questioned whether femoral components with a lateral groove orientation more closely approximate the configuration in the natural knee. The groove orientations of an implanted CKS femoral component, available in different sizes and with different groove orientations, were determined and compared with formerly published measurements of the natural trochlear orientation. It was found that the prosthetic groove orientations differed considerably from human anatomy, up to a maximum deviation of 6.4 degrees. The orientations of the prosthetic grooves were all equal within the area of the natural trochlea. The area of the natural trochlea guides the patella between about 30 degrees and 120 degrees of knee flexion. The orientations of the prosthetic grooves were different in the area of the supracondylar pouch/proximal anterior flange. This area guides the patella between about 0 degrees and 30 degrees of knee flexion. As this study showed a considerable deviation between natural and prosthetic groove orientation, an optimal prosthetic groove orientation, matching the average orientation in the natural knee, was mathematically determined.
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/0157375
pubmed:citationSubset	IM
pubmed:status	MEDLINE
pubmed:issn	0021-9290
pubmed:author	pubmed-author:BarinaWW, pubmed-author:De Waal MalefijtMM, pubmed-author:Van de GroesSS, pubmed-author:VerdonschotNN
pubmed:issnType	Print
pubmed:volume	39
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	1708-15
pubmed:dateRevised	2009-11-11
pubmed:meshHeading	pubmed-meshheading:15979082-Arthroplasty, Replacement, Knee, pubmed-meshheading:15979082-Cadaver, pubmed-meshheading:15979082-Humans, pubmed-meshheading:15979082-Knee, pubmed-meshheading:15979082-Knee Joint
pubmed:year	2006
pubmed:articleTitle	The difference in trochlear orientation between the natural knee and current prosthetic knee designs; towards a truly physiological prosthetic groove orientation.
pubmed:affiliation	Orthopaedic Research Lab, Department of Orthopaedics, Radboud University Nijmegen Medical Centre, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands.
pubmed:publicationType	Journal Article