MRI Measurement of the Distal Femur for Determining the Rotational Alignment in TKA
Journal of the Korean Knee Society
; : 244-250, 2009.
Article
in Ko
| WPRIM
| ID: wpr-730731
Responsible library:
WPRO
ABSTRACT
PURPOSE: The purpose of the current study was to investigate the relationship between the angles made by the reference axes on the axial magnetic resonance (MR) images and to provide information for determining the rotational alignment of the femoral component in total knee arthroplasty. MATERIALS AND METHODS: We analyzed 194 magnetic resonance (MR) images to measure the posterior condylar angle, the condylar twist angle and the difference between the posterior condylar angle and the condylar twist angle. We then evaluated the relationship between these angular measurements. RESULTS: The condylar twist angle averaged 6.09degrees, the posterior condylar angle averaged 2.95degrees and the difference between the posterior condylar angle and the condylar twist angle was 3.14degrees. There were no differences in these angles based on gender and age. CONCLUSION: In the cases that the center of the medial epicondyle is difficult to clearly identify during TKA, the femoral rotational resection angle can be determined by subtracting 3degrees from the condylar twist angle.
Key words
Full text:
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Index:
WPRIM
Main subject:
Arthroplasty
/
Magnetic Resonance Spectroscopy
/
Femur
/
Knee
Language:
Ko
Journal:
Journal of the Korean Knee Society
Year:
2009
Type:
Article