| Increased varus-valgus tilting of screw-fixated knee prostheses. Stereoradiographic study of uncemented versus cemented tibial components. | |
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MedLine Citation:
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PMID: 8245999 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Twenty-six women and three men (34 knees) with osteoarthrosis were operated with the Miller-Galante I (Zimmer, Warsaw, IN) knee prosthesis. The patients were randomized to either cemented or uncemented fixation of the tibial component. All patients received a TiVaAl alloy tibial plate with four pegs and titanium fiber-mesh undersurface. In the uncemented knees four screws were added. The fixation of the tibial component was determined by roentgen stereophotogrammetric analysis during the first 2 postoperative years. Rotations of the entire tibial component were recorded, as well as proximal or distal translation of various parts of the prosthetic edge corresponding to subsidence and lift-off. The uncemented components displayed almost all rotation and translation during the first 6 weeks, whereas the cemented ones displayed a more gradually increasing migration during the 2 years. Tibial component rotation about the sagittal axis was significantly increased in the uncemented knees throughout the investigation period. This corresponded to increased subsidence medially or laterally in the uncemented knees, whereas lift-off was equal in the two groups. Thin (8.5 mm) uncemented tibial components displayed more subsidence than the thicker ones at the medial or lateral edge 3 months after surgery. |
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Authors:
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K G Nilsson; J Kärrholm |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of arthroplasty Volume: 8 ISSN: 0883-5403 ISO Abbreviation: J Arthroplasty Publication Date: 1993 Oct |
Date Detail:
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Created Date: 1993-12-27 Completed Date: 1993-12-27 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8703515 Medline TA: J Arthroplasty Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 529-40 Citation Subset: IM |
Affiliation:
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Department of Orthopedics, University Hospital, Umeå, Sweden. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aged Bone Cements* Bone Screws* Female Follow-Up Studies Humans Knee Prosthesis* Male Osteoarthritis / epidemiology, radiography, surgery* Photogrammetry Prosthesis Design Prosthesis Failure |
| Chemical | |
Reg. No./Substance:
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0/Bone Cements |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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