Reliability of Imageless Computer-Assisted Navigation for Femoral Rotational Alignment in Total Knee Arthroplasty
INTRODUCTION: The aim of this study was to evaluate the reliability of the femoral component rotation on intraoperative data recorded in a computer-assisted navigation system (CAN-FRA) compared with the post-operative femoral component rotation observed on computed tomography (CT-FRA). MATERIALS...
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doaj-88cdda4d70a348ff99a6fe0f4da389802021-05-03T05:06:39ZengMalaysian Orthopaedic AssociationMalaysian Orthopaedic Journal1985-25332232-111X2021-03-01151798410.5704/MOJ.2103.012Reliability of Imageless Computer-Assisted Navigation for Femoral Rotational Alignment in Total Knee ArthroplastyLeelasestaporn C0Thuwapitchayanant M1Sirithanapipat P2Sa-ngasoongsong P3Ruengsilsuwit P4MDMDMDMDMDINTRODUCTION: The aim of this study was to evaluate the reliability of the femoral component rotation on intraoperative data recorded in a computer-assisted navigation system (CAN-FRA) compared with the post-operative femoral component rotation observed on computed tomography (CT-FRA). MATERIALS AND METHODS: Computer-assisted total knee arthroplasty (TKA) or primary osteoarthritis of the knee was performed in 51 knees in 36 patients with a mean age of 69.51 years. All procedures were performed by a single surgeon using the same implant design. The intraclass correlation coefficient (ICC) was used to compare the intraoperative CAN-FRA with the post-operative CT-FRA. The angle between the anatomical epicondylar axis and the posterior condylar axis of the implant (CT-FRA) was measured at two separate timepoints by three observers who were blinded to the intra-operative CAN-FRA. Internal rotation was defined as rotation in the negative direction, while external rotation was defined as positive. RESULTS: The mean intra-operative CAN-FRA was 0.1° ± 2.8° (range -5.0° to 5.5°). The mean post-operative CT-FRA was -1.3° ± 2.1° (range -4.6° to 4.4°). The mean difference between the CAN-FRA and the CT-FRA was -1.3° ± 2.2° (range -7.9° to 2.4°). The respective ICC values for the three observers were 0.92, 0.94, and 0.93, while the respective intra-observer coefficients were 0.91, 0.85, and 0.90. The ICC for the intra-operative CAN-FRA versus the postoperative CT-FRA was 0.71. CONCLUSION: This study shows that using a computerassisted navigation system in TKA achieves reliable results and helps to achieve optimal positioning of the femoral component and rotation alignment correction.https://www.morthoj.org/2021/v15n1/total-knee-arthroplasty.pdfcas in tkafemoral component rotationnavigation in tka |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Leelasestaporn C Thuwapitchayanant M Sirithanapipat P Sa-ngasoongsong P Ruengsilsuwit P |
spellingShingle |
Leelasestaporn C Thuwapitchayanant M Sirithanapipat P Sa-ngasoongsong P Ruengsilsuwit P Reliability of Imageless Computer-Assisted Navigation for Femoral Rotational Alignment in Total Knee Arthroplasty Malaysian Orthopaedic Journal cas in tka femoral component rotation navigation in tka |
author_facet |
Leelasestaporn C Thuwapitchayanant M Sirithanapipat P Sa-ngasoongsong P Ruengsilsuwit P |
author_sort |
Leelasestaporn C |
title |
Reliability of Imageless Computer-Assisted Navigation for Femoral Rotational Alignment in Total Knee Arthroplasty |
title_short |
Reliability of Imageless Computer-Assisted Navigation for Femoral Rotational Alignment in Total Knee Arthroplasty |
title_full |
Reliability of Imageless Computer-Assisted Navigation for Femoral Rotational Alignment in Total Knee Arthroplasty |
title_fullStr |
Reliability of Imageless Computer-Assisted Navigation for Femoral Rotational Alignment in Total Knee Arthroplasty |
title_full_unstemmed |
Reliability of Imageless Computer-Assisted Navigation for Femoral Rotational Alignment in Total Knee Arthroplasty |
title_sort |
reliability of imageless computer-assisted navigation for femoral rotational alignment in total knee arthroplasty |
publisher |
Malaysian Orthopaedic Association |
series |
Malaysian Orthopaedic Journal |
issn |
1985-2533 2232-111X |
publishDate |
2021-03-01 |
description |
INTRODUCTION: The aim of this study was to evaluate the reliability of the femoral component rotation on intraoperative data recorded in a computer-assisted navigation system (CAN-FRA) compared with the post-operative femoral component rotation observed on computed
tomography (CT-FRA).
MATERIALS AND METHODS: Computer-assisted total knee arthroplasty (TKA) or primary osteoarthritis of the knee was performed in 51 knees in 36 patients with a mean age of 69.51 years. All procedures were performed by a single surgeon using the same implant design. The intraclass correlation coefficient (ICC) was used to compare the intraoperative CAN-FRA with the post-operative CT-FRA. The angle between the anatomical epicondylar axis and the posterior condylar axis of the implant (CT-FRA) was measured at two separate timepoints by three observers who were blinded to the intra-operative CAN-FRA. Internal rotation was defined as rotation in the negative direction,
while external rotation was defined as positive.
RESULTS: The mean intra-operative CAN-FRA was 0.1° ± 2.8° (range -5.0° to 5.5°). The mean post-operative CT-FRA was -1.3° ± 2.1° (range -4.6° to 4.4°). The mean difference between the CAN-FRA and the CT-FRA was -1.3° ± 2.2° (range -7.9° to 2.4°). The respective ICC values for the three observers were 0.92, 0.94, and 0.93, while the respective intra-observer coefficients were 0.91, 0.85, and 0.90. The ICC for the intra-operative CAN-FRA versus the postoperative CT-FRA was 0.71.
CONCLUSION: This study shows that using a computerassisted navigation system in TKA achieves reliable results and helps to achieve optimal positioning of the femoral component and rotation alignment correction. |
topic |
cas in tka femoral component rotation navigation in tka |
url |
https://www.morthoj.org/2021/v15n1/total-knee-arthroplasty.pdf |
work_keys_str_mv |
AT leelasestapornc reliabilityofimagelesscomputerassistednavigationforfemoralrotationalalignmentintotalkneearthroplasty AT thuwapitchayanantm reliabilityofimagelesscomputerassistednavigationforfemoralrotationalalignmentintotalkneearthroplasty AT sirithanapipatp reliabilityofimagelesscomputerassistednavigationforfemoralrotationalalignmentintotalkneearthroplasty AT sangasoongsongp reliabilityofimagelesscomputerassistednavigationforfemoralrotationalalignmentintotalkneearthroplasty AT ruengsilsuwitp reliabilityofimagelesscomputerassistednavigationforfemoralrotationalalignmentintotalkneearthroplasty |
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