Accuracy of rotational positioning of the femoral component using the tibial-cut-first technique
| العنوان: | Accuracy of rotational positioning of the femoral component using the tibial-cut-first technique |
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| المؤلفون: | Alexander Wegner, M. von Knoch, Ralf-Dietrich Müller, Tim Classen |
| المصدر: | Zeitschrift für Orthopädie und Unfallchirurgie. 149:626-629 |
| بيانات النشر: | Georg Thieme Verlag KG, 2009. |
| سنة النشر: | 2009 |
| مصطلحات موضوعية: | musculoskeletal diseases, Orthodontics, business.industry, medicine.medical_treatment, Radiography, Medizin, Patellofemoral joint, Femoral rotation, musculoskeletal system, Rotation, Arthroplasty, Condyle, Resection, Medicine, Orthopedics and Sports Medicine, Surgery, Femoral component, business |
| الوصف: | Aim Problems with the patellofemoral joint are still one of the most common difficulties after total knee arthroplasty. One of the main reasons for these problems seems to be the rotatory malposition of the femoral component. We examined the rotation of the femoral component and the symmetry of the flexion gap of knee prostheses implanted using the tibial-cut-first technique. Method The radiographs of 58 consecutive patients who underwent primary LCS total knee arthroplasty in 2008 were examined retrospectively. The rotation of the femoral component was determined intraoperatively using the femoral positioner and depended on the amount of tibial resection and the tension of the collateral ligaments. The position was then checked by means of three anatomic landmarks: the epicondylar axis, the posterior condyles and the Whiteside line. We used Kanekasu's technique for the radiographs. With this technique it was possible to ascertain the rotation of the femoral component after total knee arthroplasty easily and with a low level of radiation. It was also possible to determine the opening of the flexion gap. Results The radiographs showed a slight external rotation of the femoral component of 1.31°. The opening of the flexion gap was increased laterally, but only by 1.5°. Conclusion In this study, determination of femoral rotation using the tibial-cut-first technique resulted in a slight external rotation of the femoral component. Furthermore, it is possible to create an almost symmetrical flexion gap with this method. |
| تدمد: | 1864-6743 1864-6697 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03ad15664ab4234534b80fa96b925dd9 https://doi.org/10.1055/s-0029-1240587 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....03ad15664ab4234534b80fa96b925dd9 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18646743 18646697 |
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