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Finite element analysis of double-plate fixation using reversed locking compression-distal femoral plates for Vancouver B1 periprosthetic femoral fractures
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| Title: | Finite element analysis of double-plate fixation using reversed locking compression-distal femoral plates for Vancouver B1 periprosthetic femoral fractures |
| Authors: | Takahashi, Daisuke Browse this author | | Noyama, Yoshihiro Browse this author | | Asano, Tsuyoshi Browse this author | | Shimizu, Tomohiro Browse this author | | Irie, Tohru Browse this author | | Terkawi, Mohamad Alaa Browse this author | | Iwasaki, Norimasa Browse this author →KAKEN DB |
| Keywords: | Periprosthetic femoral fracture | | Double plate | | Vancouver B1 | | Finite element analysis | | Locking compression-distal femoral plate |
| Issue Date: | 13-Mar-2021 |
| Publisher: | BioMed Central |
| Journal Title: | BMC musculoskeletal disorders |
| Volume: | 22 |
| Start Page: | 276 |
| Publisher DOI: | 10.1186/s12891-021-04152-5 |
| Abstract: | BackgroundInternal fixation is recommended for treating Vancouver B1 periprosthetic femoral fractures. Although several fixation procedures have been developed with high fixation stability and union rates, long-term weight-bearing constructs are still lacking. Therefore, the aim of the present study was to evaluate the stability of a double-plate procedure using reversed contralateral locking compression-distal femoral plates for fixation of Vancouver B1 periprosthetic femoral fractures under full weight-bearing.MethodsSingle- and double-plate fixation procedures for locking compression-distal femoral plates were analysed under an axial load of 1,500 N by finite element analysis and biomechanical loading tests. A vertical loading test was performed to the prosthetic head, and the displacements and strains were calculated based on load-displacement and load-strain curves generated by the static compression tests.ResultsThe finite element analysis revealed that double-plate fixation significantly reduced stress concentration at the lateral plate place on the fracture site. Under full weight-bearing, the maximum von Mises stress in the lateral plate was 268 MPa. On the other hand, the maximum stress in the single-plating method occurred at the defect level of the femur with a maximum stress value of 1,303 MPa. The principal strains of single- and double-plate fixation were 0.63% and 0.058%, respectively. Consistently, in the axial loading test, the strain values at a 1,500 N loading of the single- and double-plate fixation methods were 1,274.60 11.53 and 317.33 +/- 8.03 (x 10(-6)), respectively.Conclusions The present study suggests that dual-plate fixation with reversed locking compression-distal femoral plates may be an excellent treatment procedure for patients with Vancouver B1 fractures, allowing for full weight-bearing in the early postoperative period. |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/81225 |
| Appears in Collections: | 北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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