J Korean Orthop Assoc.  2020 Aug;55(4):318-323. 10.4055/jkoa.2020.55.4.318.

Correlation Analysis between the Factors Associated withOsteoporosis and the Fat Infiltration Rate of the Multifidus andErector Spinae Muscles in Osteoporotic Vertebral CompressionFracture Patients

Affiliations
  • 1Department of Orthopedic Surgery, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea

Abstract

Purpose
To examine the relationship between total fat infiltration (TFI) rate, which quantifies the reduction of muscles around the spineand is an important factor for sarcopenia, and the factors affecting osteoporotic vertebral compression fracture.
Materials and Methods
Patients treated for osteoporotic compression fractures of the lumber spine from January 2012 to December2016 were analyzed retrospectively. Among them, this study included ninety-eight patients who were 1) diagnosed with osteoporosis witha bone mineral density (BMD) T score of less than 2.5 g/cm2, 2) received vertebroplasty or kyphoplasty for lumbar fractures, 3) involved onesegment of the lumbar spine, and 4) were followed-up for more than one year. The TFI rate confirmed by analyzing magnetic resonanceimagings with the Image J program was studied. Based on this, the relationship between the TFI of the multifidus and erector spinaemuscles and the factors of osteoporosis were analyzed.
Results
The mean TFI of the multifidus and erector spinae was 14.66±10.16. The spine BMD showed a positive correlation with the hipBMD, but a negative correlation with the TFI. A positive correlation was observed between the hip BMD and body mass index. In addition,vitamin D was positively correlated with both the hip and spine BMD but negatively correlated with the TFI rate.
Conclusion
Muscle growth helps treat osteoporosis, and can prevent fractures that occur frequently in osteoporosis patients. Increasingthe vitamin intake can also slow the progression of muscle atrophy.

Keyword

osteoporotic vertebral compression fracture; sarcopenia; total fat infiltration; osteoporosis; vitamin D
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