Publication
Title
The position of the lateral tibial spine and the implications for high tibial osteotomy planning
Author
Abstract
The lateral tibial spine (LTS) is frequently proposed as a correction target in high tibial osteotomy (HTO), although little is known about its exact radiographic position. This study primarily aims to define the position and variance of the LTS. Secondly, this study wants to investigate the relevance of the LTS position on the mechanical tibiofemoral angle (mTFA degrees) while planning and postoperatively landing the weight-bearing line (WBL) on this landmark. The LTS position was studied on preoperative full-leg standing radiographs (FLSR) and computed tomography (CT) scans in 70 cases. 3D models of the tibia were created in Mimics 23.0 and measurements were conducted in 3-matic 15.0 (Materialise, Leuven (R)). Next, 100 HTO cases were retrospectively planned with the WBL through the LTS according to Dugdale's method on FLSR. Finally, 55 postoperative FLSR which had the WBL on the LTS (+/- 2%) were assessed for mTFA degrees outcome. Statistics were conducted in GraphPad 8.0. The LTS was located at 58.3%+/- 1.9 [55-63%] in 2D and 57.3%+/- 2.2 [53-63%] in 3D showing a high correlation (r=0.77 [0.65 to 0.85]). The planned mTFA on the LTS was 181.8 degrees +/- 0.3 (181.3 degrees-182.5 degrees). On postoperative FLSR, the mTFA was 182.2 degrees +/- 0.6 (180.9 degrees-183.1 degrees). The lateral tibial spine is located at 57-58% on the tibial plateau with a 10% maximal variation range. Good agreement was found between 2D and 3D imaging modalities while evaluating its position in the coronal plane. When aiming the WBL through the LTS during valgus-producing HTO, a consistent realignment of 181-183 degrees mTFA can be expected when performing accurate surgery.
Language
English
Source (journal)
Acta orthopaedica Belgica. - Bruxelles, 1946 - 2002
Publication
Bruxelles : 2023
ISSN
0001-6462
DOI
10.52628/89.2.11409
Volume/pages
89 :2 (2023) , p. 326-332
ISI
001124240400007
Pubmed ID
37924550
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 01.02.2024
Last edited 06.02.2024
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