scholarly journals Accuracy and a learning curve of an accelerometer-based computer navigation system in total knee arthroplasty

10.29007/dqdm ◽  
2019 ◽  
Author(s):  
Hirotake Yo ◽  
Tessyu Ikawa ◽  
Yoshito Minami
Keyword(s):  
Total Knee Arthroplasty ◽  
Learning Curve ◽  
Navigation System ◽  
Computer Navigation ◽  
Operation Time ◽  
Primary Tkas ◽  
Portable Navigation ◽  
Distal Femoral Resection ◽  
Total Knee ◽  
Femoral Resection

The aim of this study was to investigate the accuracy in performing a femoral resection and the existence of a learning curve in conducting TKA using the KneeAlign2 system. 86 primary TKAs were enrolled in this prospective study. These patients were divided in two groups.Group1: patients operated by surgeon of experience using the KneeAlign2 system more than 30 cases.Group2: patients operated by surgeons of experience using the KneeAlign2 system less than 30 cases. The radiographic results (alignment of the femoral component) and operation time were compared between the groups. There were no significant differences between the groups .The KneeAlign2 system provides usefulness in performing an accurate distal femoral resection at TKA. As the learning curve does not be observed, this portable navigation system is easy to handle even for less experienced surgeons.

Accelerometer-Based Computer Navigation for Performing the Distal Femoral Resection in Total Knee Arthroplasty

2012 ◽  
Vol 27 (9) ◽  
pp. 1717-1722 ◽  
Author(s):  
Denis Nam ◽  
Danyal H. Nawabi ◽  
Michael B. Cross ◽  
Thomas J. Heyse ◽  
David J. Mayman
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Computer Navigation ◽  
Distal Femoral Resection ◽  
Total Knee ◽  
Femoral Resection

Accelerometer-Based Portable Navigation System Is Useful for Tibial Bone Cutting in Modified Kinematically Aligned Total Knee Arthroplasty

2019 ◽  
Author(s):  
Masanori Tsubosaka ◽  
Tomoyuki Kamenaga ◽  
Yuichi Kuroda ◽  
Koji Takayama ◽  
Shingo Hashimoto ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Clinical Outcomes ◽  
Knee Arthroplasty ◽  
Navigation System ◽  
Slope Angle ◽  
Posterior Slope ◽  
Tibial Bone ◽  
Significant Difference ◽  
Portable Navigation ◽  
Total Knee

AbstractSeveral studies have reported better clinical outcomes following kinematically aligned total knee arthroplasty (KA-TKA) than mechanically aligned TKA. Consistent reproduction of a KA-TKA is aided by accurate tibial bone resections using computer navigation systems. This study compares an accelerometer-based portable navigation system with a conventional navigation system on tibial bone resection and clinical outcomes in KA-TKA. This study included 60 knees of patients who underwent primary KA-TKA between May 2015 and September 2017. They were randomly assigned to the OrthoPilot and iASSIST groups. A tibial bone cut was performed with 3 degree varus and 7 degree posterior slope in relation to the mechanical axis in all cases. The tibial component angle (TCA) and posterior slope angle (PSA) were evaluated by postoperative radiography, and those that deviated more than 2 degree were set as outliers. The clinical outcomes were the knee range of motion (ROM) and 2011 Knee Society Score (KSS) evaluated at 1 year postoperation. The groups were compared in terms of the TCA, PSA, number of outliers, ROM, and 2011 KSS (p < 0.05). No significant difference was observed between the groups in terms of the mean TCA, PSA, number of outliers, ROM, and categories of the 2011 KSS (objective knee indicators, symptoms, satisfaction, expectations, and functional activities). Although tibial bone cuts were performed with 3 degree varus and 7 degree posterior slope, no significant difference was observed between the OrthoPilot and iASSIST groups in terms of the accuracy of cuts or postoperative clinical result. The iASSIST was found to be a simple and useful navigation system for KA-TKA.

Segmental Total Knee Arthroplasty After Distal Femoral Resection for Tumor

1993 ◽  
Vol 292 ◽  
pp. 269-281 ◽  
Author(s):  
LIH-YUANN SHIH ◽  
FRANKLIN H. SIM ◽  
DOUGLAS J. PRITCHARD ◽  
MICHAEL G. ROCK ◽  
EDMUND Y. S. CHAO
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Distal Femoral Resection ◽  
Total Knee ◽  
Femoral Resection

Is a “sulcus cut” technique effective for determining the level of distal femoral resection in total knee arthroplasty?

2014 ◽  
Vol 22 (12) ◽  
pp. 3060-3066 ◽  
Author(s):  
Shinichi Kuriyama ◽  
Katsufumi Hyakuna ◽  
Satoshi Inoue ◽  
Yasuyuki Tanaka ◽  
Yasuyuki Tamaki ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Distal Femoral Resection ◽  
Total Knee ◽  
Femoral Resection
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