Abstract
Cervical spondylotic myelopathy is the main cause of non-traumatic spinal cord injury, with chronic static and/or dynamic compressive spinal cord injury as the unique pathogenesis. In the progression of this condition, the microvascular network is compressed and destroyed, resulting in ischemia and hypoxia. The main pathological changes are inflammation, damage to the blood spinal cord barriers, and cell apoptosis at the site of compression. Studies have confirmed that vascular regeneration and remodeling contribute to neural repair by promoting blood flow and the reconstruction of effective circulation to meet the nutrient and oxygen requirements for nerve repair. Surgical decompression is the most effective clinical treatment for this condition; however, in some patients, residual neurological dysfunction remains after decompression. Facilitating revascularization during compression and after decompression is therefore complementary to surgical treatment. In this review, we summarize the progress in research on chronic compressive spinal cord injury, covering both physiological and pathological changes after compression and decompression, and the regulatory mechanisms of vascular injury and repair.
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