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Knee Surgery, Sports Traumatology, Arthroscopy

Erschienen in:

01.12.2014 | Knee

Intraoperative anthropometric measurements of tibial morphology: comparisons with the dimensions of current tibial implants

verfasst von: Bo Yang, Chang-hui Song, Jia-kuo Yu, Yong-qiang Yang, Xi Gong, Lian-xu Chen, Yong-jian Wang, Jian Wang

Erschienen in: Knee Surgery, Sports Traumatology, Arthroscopy | Ausgabe 12/2014

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Abstract

Purposes

This study analyzed morphological differences in the resected proximal tibial surfaces of Chinese males and females undergoing total knee arthroplasty (TKA) and compared the measurements with the dimensions of five currently used tibial implants.

Methods

The mediolateral (ML), middle anteroposterior (AP), medial anteroposterior (MAP), and lateral anteroposterior (LAP) dimensions of the resected tibial surfaces of 976 Chinese TKA knees (177 male, 799 female) were measured. The ML/AP ratio of every knee was calculated. These morphological data were compared with the dimensions of five currently used tibial implants.

Results

The ML, AP, MAP, and LAP dimensions of the resected proximal tibias showed significant differences according to gender. Compared with currently used tibial implants, the smaller implants showed tibial ML undersizing and the larger implants showed tibial ML overhang. The ML/AP aspect ratio progressively decreased with increasing AP dimension in the resected proximal tibias, which contrasts with the relatively constant or increased (NexGen) aspect ratio in currently used tibial implants. Males showed a higher ML/AP aspect ratio than females for a given AP dimension. This indicates that for an implant with a given AP dimension, the tibial ML dimension tends to be undersized in males and to overhang in females.

Conclusion

The results of this study may provide fundamental data for designing suitable tibial implants for use in the Chinese population, especially for design of gender-specific prostheses.

Level of evidence

II.

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Titel: Intraoperative anthropometric measurements of tibial morphology: comparisons with the dimensions of current tibial implants
verfasst von: Bo Yang
Chang-hui Song
Jia-kuo Yu
Yong-qiang Yang
Xi Gong
Lian-xu Chen
Yong-jian Wang
Jian Wang
Publikationsdatum: 01.12.2014
Verlag: Springer Berlin Heidelberg
Erschienen in: Knee Surgery, Sports Traumatology, Arthroscopy / Ausgabe 12/2014
Print ISSN: 0942-2056
Elektronische ISSN: 1433-7347
DOI: https://doi.org/10.1007/s00167-014-3258-0

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Abstract

Purposes

Methods

Results

Conclusion

Level of evidence

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