Radiofrequency Echographic Multispectrometry in Diagnosing Osteoporosis in Patients with Spondylarthritis

Osteoporosis, a condition characterized by reduced bone strength and increased fracture risk, frequently coexists with spondylarthritis (SpA), an inflammatory rheumatic disease. Dual-energy X-ray absorptiometry (DXA), the gold standard for diagnosing osteoporosis, faces limitations in SpA patients due to spinal deformities and calcifications. Radiofrequency Echographic Multispectrometry (REMS), a novel ultrasound-based diagnostic technology, overcomes many of these challenges by assessing bone quality and microarchitecture without interference from structural changes. This article explores the underlying mechanisms linking SpA and osteoporosis, reviews the utility of REMS in this context, evaluates the existing evidence supporting its clinical application, and provides additional findings promoting the use of REMS in individuals with SpA.