Prevalence of and factors associated with stenotic thoracic ligamentum flavum hypertrophy
Study context
- Population
- Pain clinic patients with leg and/or low back pain who had whole-spine MRI, 2010–2019
- Participants
- 1,896 patients
- Outcome
- Prevalence of stenotic thoracic ligamentum flavum hypertrophy
Methodological detailsMRI review, multivariable logistic regression
- MRI review
- Multivariable logistic regression
Main finding
As reported in the abstract
Overall prevalence of stenotic thoracic ligamentum flavum hypertrophy
Overall prevalence (185/1896)
9.8%
Observational data: associations, not effects.
Further findings
Prevalence by age group (highest, ≥80 years)
- Prevalence in ≥80-year-old age group (14/88), highest of all age groups
- 15.9%
Prevalence by thoracic level (highest, T10/11)
- Prevalence at T10/11 level (57/1896), highest of all levels
- 3.0%
Factors associated with stenotic thoracic ligamentum flavum hypertrophy (multivariable logistic regression)
- All age groups vs <50-year-old age group significantly associated
- P < 0.01
- Grade 5 lumbar disc degeneration significantly associated
- P = 0.03
Original publication
Prevalence of and factors associated with stenotic thoracic ligamentum flavum hypertrophy. Reg Anesth Pain Med. Published 28 July 2023. doi:10.
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