Ulnar variance according to gender and side during aging: An analysis of 600 wrists

Sayıt, Emrah; Sayit, Aslı Tanrıvermiş; Bağır, Melih; Terzi, Yüksel

doi:10.1016/j.rcot.2018.03.002

Cited by 1 publication

(1 citation statement)

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“…This phenomenon can be explained by the frequently demonstrated negative correlation between UV and TFC thickness; the more positive the UV, the thinner the articular disc in order to maintain similar force distribution (Fortems et al., 1994; Harley et al., 2015; Iordache et al., 2012; Palmer et al., 1984; Sugimoto et al., 1994; Yoshioka et al., 2007). In adults, UV generally appears slightly positive (Sayit et al., 2018). In paediatric wrists however, UV is generally more negative than in adults and tends to become less negative during maturation (DiFiori et al., 2006; Sallam et al., 2020; Sanderson et al., 1997).…”

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confidence: 99%

Ulnar variance and triangular fibrocartilage thickness in adolescents: a cross-sectional MRI study of healthy participants

Post

Jens

Jacobs

et al. 2022

J Hand Surg Eur Vol

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Skeletally immature wrists are considered at risk of injury due to increased axial loading through a relatively shorter ulna. The aim of this study was to determine whether triangular fibrocartilage thickness relates to ulnar variance and age in adolescents. The radiographs and MRIs of 24 healthy adolescents were retrospectively assessed. Four observers assessed bone age and ulnar variance on radiographs and measured triangular fibrocartilage thickness on MRIs. Median calendar and bone age was 13 years and ulnar variance was −0.7 mm. Median triangular fibrocartilage thickness was 1.4 mm, with excellent inter-observer agreement (r = 0.86). It was moderately correlated with ulnar variance (ρ = −0.46) as well as with bone age (ρ = −0.49). Both variables were statistically significant predictors in a multivariate analysis. This suggests that triangular fibrocartilage thickness changes during skeletal maturation, which might influence axial load distribution in skeletally immature wrists.

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