A Coronal Landmark for Tibial Component Positioning With Anatomical Alignment in Total Knee Arthroplasty: A Radiological and Clinical Study

Overview

Journal Front Surg

Specialty General Surgery

Date 2022 Apr 15

PMID 35425805

Authors

Tianlun Gong

Ruoyu Wang

Song Gong

Lizhi Han

Yihu Yi

Yuxiang Wang

Weihua Xu

Affiliations

Soon will be listed here.

Abstract

Objective: The purpose of this study was to investigate the value of the lateral point of articular surface of distal tibia (LADT) for anatomical alignment in total knee arthroplasty.

Methods: We reconstructed 148 three-dimensional pre-arthritic tibias and measured the tibial component inclination angle corresponding to the distal landmark of LADT. A retrospective study included 81 TKA recipients divided into the AA group and MA group. Clinical assessments including ROM, HSS, WOMAC, satisfaction for surgery, and radiological assessment were evaluated at one-year follow-up.

Results: The tibial component varus angle corresponding to the distal landmark of LADT in the male and female groups were 3.4 ± 0.3° (2.6~4.2°) and 3.2 ± 0.3° (2.3~4.0°), respectively ( <0.05). Using LADT as the distal landmark for extramedullary tibial cutting guidance, the medial proximal tibia angle (MPTA) of the AA group was 87.0±1.2° (85.0~90.0°), and the AA and MA technique showed no difference in improvement in postoperative knee functional recovery at final follow-up.

Conclusions: This study preliminarily indicated that LADT can be a reliable and economical landmark for coronal plane alignment of the tibial component.

Citing Articles

The distal tibiofibular syndesmosis is a reliable landmark for 3° varus tibial resection in total knee arthroplasty: a radiological evaluation on 1296 cases.

Perelli S, Costa G, Russo A, Hinarejos P, Torres-Claramunt R, Sanchez-Soler J Arch Orthop Trauma Surg. 2023; 144(2):879-885.

PMID: 37864591 DOI: 10.1007/s00402-023-05099-z.

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