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Early tibial subchondral bone texture changes after arthroscopic partial meniscectomy in knees without radiographic OA: A prospective cohort study
Wolski, Marcin Thorlund, Jonas B. Stachowiak, Gwidon W. Holsgaard-Larsen, Anders Creaby, Mark W. Jørgensen, Gitte M. Englund, Martin Podsiadlo, Pawel
Wolski, Marcin
Thorlund, Jonas B.
Stachowiak, Gwidon W.
Holsgaard-Larsen, Anders
Creaby, Mark W.
Jørgensen, Gitte M.
Englund, Martin
Podsiadlo, Pawel
Abstract
Arthroscopic partial meniscectomy (APM) may lead to changes in underlying trabecular bone (TB) structure potentially promoting the development of knee joint osteoarthritis. Our aim was to investigate if there are early changes occurring in tibial subchondral TB texture in the leg undergoing medial APM compared with the unoperated non‐injured contra‐lateral leg. The bone texture was measured as the medial‐to‐lateral ratio of fractal dimensions (FD) calculated for regions selected on weight‐bearing anteroposterior tibiofemoral x‐rays. Twenty‐one subjects before and 12 months after APM were included from 374 patients scheduled for unilateral medial APM. The medial‐to‐lateral ratio was calculated for horizontal, vertical, and roughest FDs respectively. Higher FD means higher bone roughness. Each FD was calculated over a range of scales using a variance orientation transform method. Mean values of medial‐to‐lateral horizontal FD calculated for APM knees at follow‐up were higher than those at baseline. For unoperated knees the values were lower. The difference in the horizontal FD change from baseline to follow‐up between APM and contra‐lateral legs was 0.028 (95% CI, 0.004‐0.052). The bone roughness changes may reflect the increase in peak knee adduction moment (KAM) and KAM impulse during walking reported for the same cohort in a previous study. They may also reflect early signs of osteoarthritis development and thus, we speculate that individuals with increased bone texture roughness ratio after APM might be at higher risk of knee osteoarthritis development.
Keywords
fractal analysis, meniscectomy, osteoarthritis, tibiofemoral
Date
2020
Type
Journal article
Journal
Journal of Orthopaedic Research
Book
Volume
38
Issue
8
Page Range
1819-1825
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
License
File Access
Controlled