Postoperative stability following a triple pelvic osteotomy is affected by implant configuration: a finite element analysis
Abstract Background The triple pelvic osteotomy is an established surgical method with multiple modifications regarding surgical technique and choice of implant. The stability of the osteotomy is affected by numerous factors, and among these, the three-dimensional implant configuration is a scientif...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2022-05-01
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| Series: | Journal of Orthopaedic Surgery and Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13018-022-03169-3 |
| _version_ | 1798005383410745344 |
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| author | Henrik Hedelin Erik Brynskog Per Larnert Johan Iraeus Tero Laine Kerstin Lagerstrand |
| author_facet | Henrik Hedelin Erik Brynskog Per Larnert Johan Iraeus Tero Laine Kerstin Lagerstrand |
| author_sort | Henrik Hedelin |
| collection | DOAJ |
| description | Abstract Background The triple pelvic osteotomy is an established surgical method with multiple modifications regarding surgical technique and choice of implant. The stability of the osteotomy is affected by numerous factors, and among these, the three-dimensional implant configuration is a scientifically less explored aspect. Methods We used a finite element model of a hemi-pelvis with a standardized triple osteotomy to calculate relative flexibility for loads in all translational degrees of freedom for five different implant configurations. Two of the configurations used entry points only feasible when implant removal was not necessary. Results The stability of the osteotomy improved with an increased distance between the implants in the plane of the osteotomy as well as for a more perpendicular angle relative to the osteotomy plane. The implant configurations with more entry points available made this easier to adhere to. Conclusion The use of bioabsorbable implants may provide better opportunities for optimal implant constructs which can, to a certain degree, compensate for the lesser mechanical stiffness of bioabsorbable polymers as compared to metal implants. |
| first_indexed | 2024-04-11T12:38:20Z |
| format | Article |
| id | doaj.art-f3295158e37240d1bd5e537b5456c7e6 |
| institution | Directory Open Access Journal |
| issn | 1749-799X |
| language | English |
| last_indexed | 2024-04-11T12:38:20Z |
| publishDate | 2022-05-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj.art-f3295158e37240d1bd5e537b5456c7e62022-12-22T04:23:34ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2022-05-011711910.1186/s13018-022-03169-3Postoperative stability following a triple pelvic osteotomy is affected by implant configuration: a finite element analysisHenrik Hedelin0Erik Brynskog1Per Larnert2Johan Iraeus3Tero Laine4Kerstin Lagerstrand5Department of Orthopaedics, Sahlgrenska University HospitalDepartment of Mechanics and Maritime Sciences, Chalmers University of TechnologyDepartment of Orthopaedics, Sahlgrenska University HospitalDepartment of Mechanics and Maritime Sciences, Chalmers University of TechnologyDepartment of Orthopaedics, Sahlgrenska University HospitalInstitute of Clinical Sciences, Sahlgrenska Academy, University of GothenburgAbstract Background The triple pelvic osteotomy is an established surgical method with multiple modifications regarding surgical technique and choice of implant. The stability of the osteotomy is affected by numerous factors, and among these, the three-dimensional implant configuration is a scientifically less explored aspect. Methods We used a finite element model of a hemi-pelvis with a standardized triple osteotomy to calculate relative flexibility for loads in all translational degrees of freedom for five different implant configurations. Two of the configurations used entry points only feasible when implant removal was not necessary. Results The stability of the osteotomy improved with an increased distance between the implants in the plane of the osteotomy as well as for a more perpendicular angle relative to the osteotomy plane. The implant configurations with more entry points available made this easier to adhere to. Conclusion The use of bioabsorbable implants may provide better opportunities for optimal implant constructs which can, to a certain degree, compensate for the lesser mechanical stiffness of bioabsorbable polymers as compared to metal implants.https://doi.org/10.1186/s13018-022-03169-3OsteotomyAcetabulumFixationBioabsorbable screwFinite element analysis |
| spellingShingle | Henrik Hedelin Erik Brynskog Per Larnert Johan Iraeus Tero Laine Kerstin Lagerstrand Postoperative stability following a triple pelvic osteotomy is affected by implant configuration: a finite element analysis Journal of Orthopaedic Surgery and Research Osteotomy Acetabulum Fixation Bioabsorbable screw Finite element analysis |
| title | Postoperative stability following a triple pelvic osteotomy is affected by implant configuration: a finite element analysis |
| title_full | Postoperative stability following a triple pelvic osteotomy is affected by implant configuration: a finite element analysis |
| title_fullStr | Postoperative stability following a triple pelvic osteotomy is affected by implant configuration: a finite element analysis |
| title_full_unstemmed | Postoperative stability following a triple pelvic osteotomy is affected by implant configuration: a finite element analysis |
| title_short | Postoperative stability following a triple pelvic osteotomy is affected by implant configuration: a finite element analysis |
| title_sort | postoperative stability following a triple pelvic osteotomy is affected by implant configuration a finite element analysis |
| topic | Osteotomy Acetabulum Fixation Bioabsorbable screw Finite element analysis |
| url | https://doi.org/10.1186/s13018-022-03169-3 |
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