Comparison of an Accelerometer-Based Portable Navigation System, Patient-Specific Instrumentation, and Conventional Instrumentation for Femoral Alignment in Total Knee Arthroplasty
The Journal of Korean Knee Society
;
: 269-275, 2017.
Article
in English
| WPRIM
| ID: wpr-759296
ABSTRACT
PURPOSE:
The KneeAlign2 (KA2, OrthoAlign Inc.) accelerometer-based portable navigation system and patient-specific instrumentation (PSI; Signature, ZimmerBiomet) are widely used for ideal femoral component alignment in total knee arthroplasty (TKA). However, there has been no comparative study of the KA2 system, PSI, and conventional intramedullary instrumentation (CON). The purpose of this study was to compare the accuracy in achieving proper femoral component alignment and clinical features by using the KA2 navigation system, PSI, and CON. MATERIALS ANDMETHODS:
We retrospectively compared the accuracy of femoral component alignment of 34 TKAs performed with the KA2 system for implantation of the femoral component, 32 TKAs with PSI, and 33 TKAs with CON.RESULTS:
In the coronal plane, use of the KA2 system was more likely to result in optimal femoral component alignment than the CON and PSI (p < 0.01). In the sagittal plane, use of the KA2 system was more likely to result in optimal component alignment than PSI, but the difference between the KA2 and CON was insignificant.CONCLUSIONS:
The portable accelerometer-based KA2 navigation system enabled ideal femoral implantation in the coronal and sagittal planes, as compared to the PSI or CON.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Arthroplasty
/
Retrospective Studies
/
Arthroplasty, Replacement, Knee
/
Knee
Type of study:
Observational study
Language:
English
Journal:
The Journal of Korean Knee Society
Year:
2017
Type:
Article
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