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DC Field | Value | Language |
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dc.contributor.author | Berahmani, Sanaz | - |
dc.contributor.author | Hendriks, Maartje | - |
dc.contributor.author | de Jong, Joost J. A. | - |
dc.contributor.author | VAN DEN BERGH, Joop | - |
dc.contributor.author | Maal, Thomas | - |
dc.contributor.author | Janssen, Dennis | - |
dc.contributor.author | Verdonschot, Nico | - |
dc.date.accessioned | 2018-11-12T15:27:06Z | - |
dc.date.available | 2018-11-12T15:27:06Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | CLINICAL BIOMECHANICS, 51, p. 1-9 | - |
dc.identifier.issn | 0268-0033 | - |
dc.identifier.uri | http://hdl.handle.net/1942/27332 | - |
dc.description.abstract | Background: During implantation of an uncemented femoral knee implant, press-fit interference fit provides the primary stability. It is assumed that during implantation a combination of elastic and plastic deformation and abrasion of the bone will occur, but little is known about what happens at the bone-implant interface and how much press-fit interference fit is eventually achieved. Methods: Five cadaveric femora were prepared and implantation was performed by an experienced surgeon. Micro-CT- and conventional CT-scans were obtained pre- and post-implantation for geometrical measurements and to measure bone mineral density. Additionally, the position of the implant with respect to the bone was determined by optical scanning of the reconstructions. By measuring the differences in surface geometry, assessments were made of the cutting error, the actual interference fit, the amount of bone damage, and the effective interference fit. Findings: Our analysis showed an average cutting error of 0.67 mm (SD 0.17 mm), which pointed mostly towards bone under-resections. We found an average actual AP interference fit of 1.48 mm (SD 0.27 mm), which was close to the nominal value of 1.5 mm. Interpretation: We observed combinations of bone damage and elastic deformation in all bone specimens, which showed a trend to be related with bone density. Higher bone density tended to lead to lower bone damage and higher elastic deformation. The results of the current study indicate different factors that interact while implanting an uncemented femoral knee component. This knowledge can be used to fine-tune design criteria of femoral components to achieve adequate primary stability for all patients. | - |
dc.description.sponsorship | This work was supported by a research grant from DePuy Synthes Joint Reconstruction (Leeds, UK). The authors would like to thank orthopaedic surgeon, Dr. S. van de Groes, for performing implantation and Mr. F. Baan for his help with the optical scanning. | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject.other | Uncemented total knee replacement; Bone damage; Micro-CT scan; Bone density; Press-fit interference fit | - |
dc.subject.other | Uncemented total knee replacement; Bone damage; Micro-CT scan; Bone density; Press-fit interference fit | - |
dc.title | Evaluation of interference fit and bone damage of an uncemented femoral knee implant | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 9 | - |
dc.identifier.spage | 1 | - |
dc.identifier.volume | 51 | - |
local.format.pages | 9 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | [Berahmani, Sanaz; Hendriks, Maartje; Janssen, Dennis; Verdonschot, Nico] Radboud Univ Nijmegen, Med Ctr, Radboud Inst Hlth Sci, Orthopaed Res Lab, POB 9101, NL-6500 HB Nijmegen, Netherlands. [de Jong, Joost J. A.; van den Bergh, Joop P. W.] Maastricht Univ, Med Ctr, NUTRIM Sch Nutr & Translat Res Metab, Maastricht, Netherlands. [de Jong, Joost J. A.; van den Bergh, Joop P. W.] Maastricht Univ, Med Ctr, Dept Rheumatol, Maastricht, Netherlands. [van den Bergh, Joop P. W.] VieCuri Med Ctr, Dept Internal Med, Venlo, Netherlands. [van den Bergh, Joop P. W.] Hasselt Univ, Fac Med & Life Sci, Hasselt, Belgium. [Maal, Thomas] Radboud Univ Nijmegen, Med Ctr, Dept Oral & Maxillofacial Surg, Nijmegen, Netherlands. [Verdonschot, Nico] Univ Twente, Lab Biomech Engn, Enschede, Netherlands. | - |
local.publisher.place | OXFORD | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1016/j.clinbiomech.2017.10.022 | - |
dc.identifier.isi | 000426235700001 | - |
item.fullcitation | Berahmani, Sanaz; Hendriks, Maartje; de Jong, Joost J. A.; VAN DEN BERGH, Joop; Maal, Thomas; Janssen, Dennis & Verdonschot, Nico (2018) Evaluation of interference fit and bone damage of an uncemented femoral knee implant. In: CLINICAL BIOMECHANICS, 51, p. 1-9. | - |
item.validation | ecoom 2019 | - |
item.accessRights | Restricted Access | - |
item.fulltext | With Fulltext | - |
item.contributor | Berahmani, Sanaz | - |
item.contributor | Hendriks, Maartje | - |
item.contributor | de Jong, Joost J. A. | - |
item.contributor | VAN DEN BERGH, Joop | - |
item.contributor | Maal, Thomas | - |
item.contributor | Janssen, Dennis | - |
item.contributor | Verdonschot, Nico | - |
crisitem.journal.issn | 0268-0033 | - |
crisitem.journal.eissn | 1879-1271 | - |
Appears in Collections: | Research publications |
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berahmani 1.pdf Restricted Access | Published version | 2.14 MB | Adobe PDF | View/Open Request a copy |
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