How to Minimize Rotational Conflict between Femoral & Tibial Component in Total Knee Arthroplasty: The Use of Femoro-Tibial Axial Synchronizer (Linker).
10.3349/ymj.2015.56.2.454
- Author:
Jai Gon SEO
1
;
Young Wan MOON
;
Sang Min KIM
;
Sang Hoon PARK
Author Information
1. Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
- Publication Type:Original Article ; Comparative Study
- Keywords:
Rotational axis;
femoro-tibial synchronizer;
extramedullary reference;
total knee arthroplasty
- MeSH:
Aged;
Aged, 80 and over;
Arthroplasty, Replacement, Knee/*methods;
Female;
Femur/*radiography/surgery;
Humans;
Knee;
Knee Joint/*radiography/surgery;
Knee Prosthesis;
Male;
Middle Aged;
Reference Values;
Rotation;
Tibia/*radiography/surgery;
Tomography, X-Ray Computed/*methods
- From:Yonsei Medical Journal
2015;56(2):454-459
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: The purpose of this study was to investigate the correlation between rotational axes of femur and tibia with the use of Linker. MATERIALS AND METHODS: This study was carried out from August 2009 to February 2010 on 54 patients (106 knees), who were diagnosed with simultaneous bilateral total knee arthroplasty. With the use of postoperative computed tomography scans, it was investigated how much the rotational angle of femoral and tibial components matched. RESULTS: The tibial component was internally rotated for the femoral component at an angle of 0.8degrees. The femoral component was externally rotated for the surgical transepicondylar axis (TEA) at an angle of 1.6 (range: from 4.8degrees of internal rotation to 7.9degrees of external rotation, SD=2.2degrees), and the tibial component was externally rotated for the surgical TEA at an average angle of 0.9 (range: from 5.1degrees of internal rotation to 8.3degrees of external rotation, SD=3.1degrees). CONCLUSION: The femoro-tibial synchronizer helped to improve the orientation and positioning of both femoral component and tibial component, and also increase the correlation of the rotational axes of the two components.
