Comparative Analysis of T-Score Discordance between a Registry-Based Korean Population and Atypical Femoral Fracture Patients of a Single Institution

Yun Seong Choi, Tae Woo Kim, Jin Hwa Jeong, Seung Beom Han, Moon Jong Chang, Chong Bum Chang, Seung Baik Kang

Research output: Contribution to journalArticlepeer-review

Abstract

Background: The purpose of this study was to analyze the epidemiology of T-score discordance between the spine and femur in the South Korean population and compare the prevalence of T-score discordance between the Korean osteoporosis population and atypical femoral fracture (AFF) patients. Methods: A total of 12,422 subjects from the Korea National Health and Nutrition Examination Survey were reviewed retrospectively. T-score discordance was defined as a difference of ≥ 1 standard deviation between the lumbar spine (LS) and femoral neck (FN) bone mineral density (BMD). The prevalence of T-score discordance (low LS [LS BMD < FN BMD], low FN [LS BMD > FN BMD], and total [low LS + low FN]) was investigated in the osteoporosis and non-osteoporosis groups and stratified by sex and age. Tscore discordance of 63 patients with AFFs diagnosed at a single institution was compared with that of the Korean osteoporosis population using propensity score matching. Results: T-score discordance was prevalent in the Korean osteoporosis population (44.8%), and low LS discordance (37.5%) was more frequently seen than low FN discordance (7.2%) (p < 0.001). The prevalence of total and low LS discordance was significantly higher in AFF patients than in the Korean osteoporosis population (total discordance: 69.8% and 42.5%, respectively; low LS discordance: 63.5% and 31.7%, respectively; p < 0.001). Conclusions: T-score discordance was highly prevalent in the Korean osteoporosis population, and low LS discordance was more common than low FN discordance. Nevertheless, the prevalence of low LS discordance was significantly higher in AFF patients than in the Korean osteoporosis population.

Original languageEnglish
Pages (from-to)352-360
Number of pages9
JournalCiOS Clinics in Orthopedic Surgery
Volume14
Issue number3
DOIs
StatePublished - Sep 2022
Externally publishedYes

Keywords

  • Atypical femoral fracture
  • Korean osteoporosis population
  • Osteoporosis
  • T-score discordance

Fingerprint

Dive into the research topics of 'Comparative Analysis of T-Score Discordance between a Registry-Based Korean Population and Atypical Femoral Fracture Patients of a Single Institution'. Together they form a unique fingerprint.

Cite this