Reliable Alignment in Total Knee Arthroplasty by the Use of an iPod-Based Navigation System
Axial alignment is one of the main objectives in total knee arthroplasty (TKA). Computer-assisted surgery (CAS) is more accurate regarding limb alignment reconstruction compared to the conventional technique. The aim of this study was to analyse the precision of the innovative navigation system DASH...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Orthopedics |
| Online Access: | http://dx.doi.org/10.1155/2016/2606453 |
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| _version_ | 1832551497613705216 |
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| author | Paola Koenen Marco M. Schneider Matthias Fröhlich Arne Driessen Bertil Bouillon Holger Bäthis |
| author_facet | Paola Koenen Marco M. Schneider Matthias Fröhlich Arne Driessen Bertil Bouillon Holger Bäthis |
| author_sort | Paola Koenen |
| collection | DOAJ |
| description | Axial alignment is one of the main objectives in total knee arthroplasty (TKA). Computer-assisted surgery (CAS) is more accurate regarding limb alignment reconstruction compared to the conventional technique. The aim of this study was to analyse the precision of the innovative navigation system DASH® by Brainlab and to evaluate the reliability of intraoperatively acquired data. A retrospective analysis of 40 patients was performed, who underwent CAS TKA using the iPod-based navigation system DASH. Pre- and postoperative axial alignment were measured on standardized radiographs by two independent observers. These data were compared with the navigation data. Furthermore, interobserver reliability was measured. The duration of surgery was monitored. The mean difference between the preoperative mechanical axis by X-ray and the first intraoperatively measured limb axis by the navigation system was 2.4°. The postoperative X-rays showed a mean difference of 1.3° compared to the final navigation measurement. According to radiographic measurements, 88% of arthroplasties had a postoperative limb axis within ±3°. The mean additional time needed for navigation was 5 minutes. We could prove very good precision for the DASH system, which is comparable to established navigation devices with only negligible expenditure of time compared to conventional TKA. |
| format | Article |
| id | doaj-art-dad634e3fe344c84988374e4bbcc7726 |
| institution | Kabale University |
| issn | 2090-3464 2090-3472 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Orthopedics |
| spelling | doaj-art-dad634e3fe344c84988374e4bbcc77262025-02-03T06:01:26ZengWileyAdvances in Orthopedics2090-34642090-34722016-01-01201610.1155/2016/26064532606453Reliable Alignment in Total Knee Arthroplasty by the Use of an iPod-Based Navigation SystemPaola Koenen0Marco M. Schneider1Matthias Fröhlich2Arne Driessen3Bertil Bouillon4Holger Bäthis5Department of Orthopaedics, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdecke University, 51109 Cologne, GermanyDepartment of Orthopaedics, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdecke University, 51109 Cologne, GermanyDepartment of Orthopaedics, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdecke University, 51109 Cologne, GermanyDepartment of Orthopaedics, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdecke University, 51109 Cologne, GermanyDepartment of Orthopaedics, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdecke University, 51109 Cologne, GermanyDepartment of Orthopaedics, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdecke University, 51109 Cologne, GermanyAxial alignment is one of the main objectives in total knee arthroplasty (TKA). Computer-assisted surgery (CAS) is more accurate regarding limb alignment reconstruction compared to the conventional technique. The aim of this study was to analyse the precision of the innovative navigation system DASH® by Brainlab and to evaluate the reliability of intraoperatively acquired data. A retrospective analysis of 40 patients was performed, who underwent CAS TKA using the iPod-based navigation system DASH. Pre- and postoperative axial alignment were measured on standardized radiographs by two independent observers. These data were compared with the navigation data. Furthermore, interobserver reliability was measured. The duration of surgery was monitored. The mean difference between the preoperative mechanical axis by X-ray and the first intraoperatively measured limb axis by the navigation system was 2.4°. The postoperative X-rays showed a mean difference of 1.3° compared to the final navigation measurement. According to radiographic measurements, 88% of arthroplasties had a postoperative limb axis within ±3°. The mean additional time needed for navigation was 5 minutes. We could prove very good precision for the DASH system, which is comparable to established navigation devices with only negligible expenditure of time compared to conventional TKA.http://dx.doi.org/10.1155/2016/2606453 |
| spellingShingle | Paola Koenen Marco M. Schneider Matthias Fröhlich Arne Driessen Bertil Bouillon Holger Bäthis Reliable Alignment in Total Knee Arthroplasty by the Use of an iPod-Based Navigation System Advances in Orthopedics |
| title | Reliable Alignment in Total Knee Arthroplasty by the Use of an iPod-Based Navigation System |
| title_full | Reliable Alignment in Total Knee Arthroplasty by the Use of an iPod-Based Navigation System |
| title_fullStr | Reliable Alignment in Total Knee Arthroplasty by the Use of an iPod-Based Navigation System |
| title_full_unstemmed | Reliable Alignment in Total Knee Arthroplasty by the Use of an iPod-Based Navigation System |
| title_short | Reliable Alignment in Total Knee Arthroplasty by the Use of an iPod-Based Navigation System |
| title_sort | reliable alignment in total knee arthroplasty by the use of an ipod based navigation system |
| url | http://dx.doi.org/10.1155/2016/2606453 |
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