Posterior slope angle of the tibial plateau in 60 healthy Mongolia population measured by computed tomography

doi:10.3969/j.issn.2095-4344.2017.27.022

Abstract

Abstract:

BACKGROUND: There are more measurement data about knee joint at home and abroad, but few data about the northern China, especially Inner Mongolia region. Whether the posterior slope angle of tibial plateau in local area differs from that of Chinese or foreigners is rarely reported.

OBJECTIVE: To measure the posterior slope angle of the medial tibial plateau in healthy Mongolia population, and to compare the differences of different measurement methods, so as to understand the anatomical characters of tibial plateau in Inner Mongolia region.

METHODS: Sixty Mongolian volunteers were recruited, the 20 cm upper and under the knee joint were scanned bilaterally by GE64 row spiral CT, and the three-dimensional model of the knee was established on Mimics16.0 software, followed by processed through fairing, filling, separation and cutting. Afterwards, the angel between anterior cortical bone extension line of upper tibia (method A), tibia anatomical axis (method B), line perpendicular to the posterior cortical bone extension line of upper tibia (method C) and upper edge line of the tibial plateau was measured, respectively. The posterior slope angle of the medial tibial plateau (90°-measured angle) was obtained and compared.

RESULTS AND CONCLUSION: (1) The posterior slope angle of the medial tibial plateau measured by methods A, B and C was (11.16±3.39)°, (8.60±3.29)° and (5.30±4.40)°, respectively, and the former two were similar with those reported by Wang Ye-hua and Luo Ji-wei (P > 0.05). (2) There were significant differences in the posterior slope angle of the left and right medial tibial plateau among methods (P < 0.05), but there was no significant difference between left and right sides (P > 0.05). (3) There was no significant difference in the posterior slope angle of the left and right medial tibial plateau between genders (P > 0.05). (4) These results indicate that the Mongolian population show smaller posterior slope angle of the tibial plateau, but the angle exhibits great individual difference, thereafter, an individualize scheme should be developed before osteotomy.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Key words: Arthroplasty, Replacement, Knee, Tibia, Tissue Engineering

CLC Number:

R318

Lin Ye, Zhang Guo-liang, Li Qiang, Puri Busurong, Wang Yue-wen. Posterior slope angle of the tibial plateau in 60 healthy Mongolia population measured by computed tomography [J]. Chinese Journal of Tissue Engineering Research, 2017, 21(27): 4391-4396.

Figures/Tables 1

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