Effects of measurement methods for tibial rotation axis on the morphometry in Korean populations by gender

Abstract Background There have been arguments for methodology in tibial rotation axis measurement, which accordingly determines the morphometry of the proximal tibia in total knee arthroplasty. The morphometry of the proximal tibia for the Korean population is determined by gender, based on the anat...

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Bibliographic Details
Published in:The knee 2017-01, Vol.24 (1), p.23-30
Main Authors: Kang, Kyoung-Tak, Son, Juhyun, Kwon, Oh-Ryong, Baek, Changhyun, Heo, Dong Beom, Park, Kyoung-Mi, Kim, Ho-Joong, Koh, Yong-Gon
Format: Article
Language:English
Subjects:
3D magnetic resonance imaging
Aged
Aged, 80 and over
Arthroplasty, Replacement, Knee
Asian Continental Ancestry Group
Cohort Studies
Ethnicity
Female
Females
Gender differences
Geometry
Humans
Imaging, Three-Dimensional
Joint surgery
Knee
Knee Prosthesis
Magnetic Resonance Imaging
Male
Males
Methods
Middle Aged
Morphology
Morphometry
NMR
Nuclear magnetic resonance
Orthopedics
Osteoarthritis, Knee - diagnostic imaging
Osteoarthritis, Knee - ethnology
Osteoarthritis, Knee - surgery
Prostheses
Prosthesis Design
Range of Motion, Articular
Republic of Korea
Sex Factors
Software
Surgeons
Tibia - diagnostic imaging
Tibia - surgery
Tibial component design
Total knee arthroplasty
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Summary:Abstract Background There have been arguments for methodology in tibial rotation axis measurement, which accordingly determines the morphometry of the proximal tibia in total knee arthroplasty. The morphometry of the proximal tibia for the Korean population is determined by gender, based on the anatomical tibial axis and reliable rotational orientation in knee replacements, to evaluate the size suitability of the currently available prostheses in Korea. Methods This study reconstructed the MRI images in three-dimensions for identification and measurement of the mediolateral (ML) and anteroposterior (AP) lengths of the proximal tibia and the tibial aspect ratio (ML/AP) using proximal tibial anthropometric data for 700 osteoarthritic knees (587 females and 113 males). The ML and AP lengths were measured using tibial rotation axis techniques based on the medial one-third tibial tubercle and Cobb's method. Results Significant differences ( P < 0.05) in ML, medial anteroposterior (MAP), lateral anteroposterior (LAP) lengths, and aspect ratio (ML/LAP) were observed for males and females with respect to different measurement techniques for the tibial rotation axis. However, the measured aspect ratio (ML/MAP) of tibiae for the Korean population did not show significance. The measured aspect ratio (ML/AP) ratio of tibiae for the Korean population was higher than that of currently available tibial components. Conclusions Results from this study can guide development of gender-specific tibial prosthesis designs with different ML and AP aspect ratios based on the tibial anatomical rotation axis for the Korean population.
ISSN:0968-0160
1873-5800
DOI:10.1016/j.knee.2016.09.012