Comparison of knee geometry between Chinese Han people and American Caucasians

doi:10.3969/j.issn.2095-4344.2897

Abstract

Abstract:

BACKGROUND: Some studies have shown that the anterior and posterior diameters and transverse diameters of the proximal tibia of the Chinese knee are smaller than those of the Caucasian in the United States, so there are some differences in the morphology of the knee, so the phenomenon of low matching

degree often occurs when the imported prosthesis system is applied to the Chinese.

OBJECTIVE: To measure the geometric parameters of the distal femur and the proximal tibia of Chinese and American, compare the differences.

METHODS: The 50 Chinese Han patients planned to undergo anterior cruciate ligament reconstruction in the Department of Orthopedics, Beijing Tsinghua Changgung Hospital and 40 Caucasian patients planned for anterior cruciate ligament reconstruction at the University of Pittsburgh Sports Medicine Center were selected. The knee joints of 90 subjects were scanned by Computed Tomography. Three-dimensional reconstruction was performed by AW Volume Share 5 software. The Geomagic software was used to measure the parameters of the distal femur and proximal tibia.

RESULTS AND CONCLUSION: (1) In the measurement parameters of the proximal femur, the inner and outer diameters of the lateral tibial plateau in Chinese were smaller than those of the American (P=0.027), and the posterior inclination of the lateral tibial plateau was greater in Chinese than that of the American (P < 0.05). There was no significant difference in the inner and outer diameters of the tibial plateau, the outer diameter of the medial tibial plateau, the anteroposterior diameter of the medial tibial plateau, the anteroposterior diameter of the lateral tibial plateau, and the posterior inclination angle of the medial tibial plateau between the two groups (P > 0.05). (2) In the measurement parameters of the distal femur, the transverse diameter of the distal femur, the medial and lateral diameters of the lateral condyle, the anteroposterior diameter of the medial condyle, the anteroposterior diameter of the lateral condyle, and the height of the intercondylar fossa were all less in Chinese than those of the American (P < 0.05); the valgus angle of the Chinese femur was greater than that of the American (P < 0.05). There was no significant difference in the inner and outer diameters of the medial condyle, the width of the intercondylar notch and the width of the trochlear groove between the two groups (P > 0.05). (3) There are some differences in many parameters of knee morphology between Chinese and American. It is necessary to design more individualized knee joint prosthesis for Chinese.

Key words: bone, knee, joint, prosthesis, implant, total knee replacement, distal femur, proximal tibia, morphology, measurement

CLC Number:

Gong Heng, Huang Bin, Fu Ligong, Liu Huawei, Chen Lianxu. Comparison of knee geometry between Chinese Han people and American Caucasians[J]. Chinese Journal of Tissue Engineering Research, 2020, 24(33): 5366-5370.

Figures/Tables 4

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