Lack of agreement between computer navigation and post-operative 2-dimensional computed tomography (CT) measurements for component and limb alignment in total knee arthroplasty (TKA)
| Autor: | Z. Dahabreh, Bruno Giuffre, David A. Parker, Corey Scholes, Myles Coolican |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Male
medicine.medical_specialty Knee Joint medicine.medical_treatment Total knee arthroplasty Computed tomography 03 medical and health sciences 0302 clinical medicine medicine Humans Orthopedics and Sports Medicine Computer navigation 030212 general & internal medicine Post operative Arthroplasty Replacement Knee Aged Retrospective Studies Aged 80 and over Computer-assisted surgery 030222 orthopedics medicine.diagnostic_test business.industry Reproducibility of Results Bone Malalignment Middle Aged Osteoarthritis Knee Femoral rotation Surgery Surgery Computer-Assisted Coronal plane Female Knee Prosthesis Tomography X-Ray Computed Nuclear medicine business Follow-Up Studies Ct measurements |
| Zdroj: | The Knee. 23:137-143 |
| ISSN: | 0968-0160 |
| DOI: | 10.1016/j.knee.2015.07.009 |
| Popis: | Background The purpose of this study was to assess the degree of mismatch between intraoperative navigation data using imageless computer navigation and post-operative CT scan measurements with respect to bone cuts, component and limb alignment during TKA. Methods Intraoperative navigation data including bone cut verification and overall limb alignment during TKA was compared to postoperative CT measurements of component and limb alignment according to the Perth protocol. The proportion of cases with mismatch between navigation and CT measurements at two and three degree thresholds was identified. Results In a total sample of 50 primary TKAs, 20% of cases showed a mismatch of more than two degrees between navigation and CT obtained measurements for coronal femoral alignment, 42% for femoral rotation, 16% for tibial component coronal alignment and 32% for overall limb alignment. Conclusion Mismatch between intraoperative navigation data and postoperative CT measurements suggests that postoperative CT scan alignment data should be interpreted with caution. A surgeon should consider a multitude of factors when analysing component and limb alignment postoperatively. |
| Databáze: | OpenAIRE |
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