Diffuse idiopathic skeletal hyperostosis: musculoskeletal manifestations

Diffuse idiopathic skeletal hyperostosis remains poorly understood despite its prevalence. While spinal stiffness and back pain are commonly reported, the underlying causes remain unclear. Radiographic identification is key, with flowing ossification patterns on the thoracic spine being a hallmark. However, the condition is often overlooked due to overlapping symptoms with other spinal disorders. Patients may experience mild discomfort if ankylosis develops, but this is not always diagnostic. Radiographic findings tend to appear on the right thoracic side, even when symptoms arise from the lumbar or cervical regions. This discrepancy complicates diagnosis and management. Understanding the full range of musculoskeletal and extraspinal manifestations is essential for accurate clinical evaluation.

This analysis aims to clarify the musculoskeletal and extraspinal features of diffuse idiopathic skeletal hyperostosis. The goal is to improve diagnostic accuracy by highlighting radiographic and clinical indicators. The study also addresses the challenges of delayed diagnosis due to baseline spinal pain. It examines the risk of complications such as spinal stenosis and neurologic injury. The review considers the increased likelihood of heterotopic ossification in patients undergoing hip surgery. The focus is on identifying diagnostic patterns and managing potential complications. The intent is to guide clinical decision-making and improve patient outcomes. The study emphasizes the importance of thoracic spine imaging in diagnosis.

The review synthesizes published literature on diffuse idiopathic skeletal hyperostosis. It analyzes radiographic findings and clinical presentations reported in prior studies. The authors compare diagnostic criteria with patient symptoms and imaging results. They examine the relationship between ossification patterns and spinal complications. The study also considers the role of imaging in confirming diagnosis. No new data collection is performed; instead, the focus is on literature synthesis. The authors assess the frequency of thoracic spine involvement in patients with cervical or lumbar complaints. The review highlights the diagnostic challenges posed by overlapping symptoms and baseline pain.

Radiographic findings consistently show flowing ossification along the thoracic spine in DISH patients. This pattern is observed even when symptoms arise from the lumbar or cervical regions. The absence of spondyloarthropathy or degenerative changes is a key diagnostic feature. Patients may experience mild pain if ankylosis is present, but this is not always diagnostic. The condition is associated with complications such as lumbar stenosis and cervical myelopathy. Spinal fractures may go undiagnosed due to baseline pain and minor trauma. Delayed neurologic injury is a common consequence of unrecognized spinal instability. Extraspinal complications include an increased risk of heterotopic ossification after hip surgery.

The authors emphasize the importance of thoracic spine imaging in diagnosing diffuse idiopathic skeletal hyperostosis. They note that radiographic findings may not align with clinical symptoms, complicating diagnosis. The review highlights the risk of delayed spinal fracture diagnosis due to baseline pain. Spinal complications such as stenosis and myelopathy are significant concerns. The potential for neurologic injury from minor trauma is a key implication. The authors suggest that prophylactic measures may be necessary for patients undergoing hip surgery. The review underscores the need for careful clinical evaluation and imaging. The findings support a multidisciplinary approach to managing DISH-related complications.