Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients
Abstract This study analyzed the migration of a calcar-guided short stem to determine the course of very early migration, as well as evaluated the effect of an additional calcium phosphate (CP) coating on a titanium plasma spray (TPS) coating, which has not been analyzed previously. Sixty patients w...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-50829-3 |
| _version_ | 1797274678730948608 |
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| author | Stefan Budde Alexander Derksen Christof Hurschler Peter Fennema Henning Windhagen Jochen Plagge Thilo Flörkemeier Gabriela von Lewinski Yvonne Noll Michael Schwarze |
| author_facet | Stefan Budde Alexander Derksen Christof Hurschler Peter Fennema Henning Windhagen Jochen Plagge Thilo Flörkemeier Gabriela von Lewinski Yvonne Noll Michael Schwarze |
| author_sort | Stefan Budde |
| collection | DOAJ |
| description | Abstract This study analyzed the migration of a calcar-guided short stem to determine the course of very early migration, as well as evaluated the effect of an additional calcium phosphate (CP) coating on a titanium plasma spray (TPS) coating, which has not been analyzed previously. Sixty patients were enrolled in this study and were treated with the A2 calcar-guided short stem. The implant coating was randomized with either the TPS or an additional CP coating, and radiostereometric analysis was performed with the baseline measurement before initial weight-bearing, along with follow-up examinations at 1 week, 6 weeks, 3 months, and 6 months. Implant migrations were 0.27 mm (standard deviation [SD], 0.13 mm) and 0.74 mm (SD, 1.11 mm) at 1 week and 6 months post-surgery, respectively, and 65% and 87% of the implants reached their final position 1 week and 6 weeks after surgery, respectively. After 6 weeks, 3 months, and 6 months, a significant increase was noted in the migration of the CP coating group vs. that of the TPS coating group. Upon the final observation at 6 months, the groups displayed on average a 0.74-mm migration. Most of the analyzed implants ceased migration within the first week post-surgery, but the CP coating demonstrated a higher and more prolonged migration compared to the TPS coating. |
| first_indexed | 2024-03-07T15:01:43Z |
| format | Article |
| id | doaj.art-bfae34fe2a6b4493bf2ad9ef74837a32 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-07T15:01:43Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-bfae34fe2a6b4493bf2ad9ef74837a322024-03-05T19:08:01ZengNature PortfolioScientific Reports2045-23222024-02-011411910.1038/s41598-023-50829-3Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patientsStefan Budde0Alexander Derksen1Christof Hurschler2Peter Fennema3Henning Windhagen4Jochen Plagge5Thilo Flörkemeier6Gabriela von Lewinski7Yvonne Noll8Michael Schwarze9Hannover Medical School, Department of Orthopaedic SurgeryHannover Medical School, Department of Orthopaedic SurgeryHannover Medical School, Department of Orthopaedic SurgeryAMR Advanced Medical ResearchHannover Medical School, Department of Orthopaedic SurgeryHannover Medical School, Department of Orthopaedic SurgeryHannover Medical School, Department of Orthopaedic SurgeryHannover Medical School, Department of Orthopaedic SurgeryHannover Medical School, Department of Orthopaedic SurgeryHannover Medical School, Department of Orthopaedic SurgeryAbstract This study analyzed the migration of a calcar-guided short stem to determine the course of very early migration, as well as evaluated the effect of an additional calcium phosphate (CP) coating on a titanium plasma spray (TPS) coating, which has not been analyzed previously. Sixty patients were enrolled in this study and were treated with the A2 calcar-guided short stem. The implant coating was randomized with either the TPS or an additional CP coating, and radiostereometric analysis was performed with the baseline measurement before initial weight-bearing, along with follow-up examinations at 1 week, 6 weeks, 3 months, and 6 months. Implant migrations were 0.27 mm (standard deviation [SD], 0.13 mm) and 0.74 mm (SD, 1.11 mm) at 1 week and 6 months post-surgery, respectively, and 65% and 87% of the implants reached their final position 1 week and 6 weeks after surgery, respectively. After 6 weeks, 3 months, and 6 months, a significant increase was noted in the migration of the CP coating group vs. that of the TPS coating group. Upon the final observation at 6 months, the groups displayed on average a 0.74-mm migration. Most of the analyzed implants ceased migration within the first week post-surgery, but the CP coating demonstrated a higher and more prolonged migration compared to the TPS coating.https://doi.org/10.1038/s41598-023-50829-3 |
| spellingShingle | Stefan Budde Alexander Derksen Christof Hurschler Peter Fennema Henning Windhagen Jochen Plagge Thilo Flörkemeier Gabriela von Lewinski Yvonne Noll Michael Schwarze Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients Scientific Reports |
| title | Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients |
| title_full | Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients |
| title_fullStr | Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients |
| title_full_unstemmed | Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients |
| title_short | Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients |
| title_sort | very early migration of a calcar guided short stem a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients |
| url | https://doi.org/10.1038/s41598-023-50829-3 |
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