European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
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The effect of skeletal muscle mass of the trunk and extremities on sagittal imbalance of the spine before and after surgery for adult spinal deformity (ASD) has not been elucidated. The purpose of this study was to examine the correlation between reduced skeletal muscle mass of the trunk and extremities, as well as spinopelvic parameters, preoperatively, postoperatively and at least 2 years after surgery for ASD. ⋯ This study revealed that lower extremity muscle mass was implicated in the loss of corrected SVA 2 years after surgery. This study is clinically meaningful as it suggests that strength training for the lower extremities, performed preoperatively and/or postoperatively, can improve sagittal imbalances of the spine in patients with severe ASD or maintain SVA after corrective surgery.
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To explore the relationship between paraspinal muscle degeneration and cervical spondylosis through cervical spine MRI and lateral X-ray. ⋯ In cervical spondylosis patients, the FI ratio of the deep cervical muscle is linked to both worsening disc degeneration and changes in cervical spine alignment. Among the different subtypes, cervical myelopathy shows the highest FI ratio of the deep cervical muscle and disc degeneration, indicating its significant impact on spinal structure and muscular integrity.
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This study aimed to compare the use of the endoscopic drill (ED) with the extra-endoscopic trephine (EET) in treating lumbar disc herniations with regard to efficiency, safety, and clinical outcomes. ⋯ The application of EET and ED were both effective for full-endoscopic foraminoplasty, and have achieved good clinical outcomes. Although the efficiency of EET is higher than that of ED, it faces some problems during use, such as a high risk of neural irritation, intense intraoperative pain, and the trephine displacement. The ED technique is safe and controllable, which can be used as an ideal method for supplementary foraminoplasty.
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Fibrosis of muscle spindles (sensory organs) in back muscles induced by intervertebral disc (IVD) degeneration could limit transmission of muscle stretch to the sensory receptor and explain the proprioceptive deficits common in back pain. Exercise reduces back muscles fibrosis. This study investigated whether targeted muscle activation via neurostimulation reverses or resolves muscle spindle fibrosis in a model of IVD injury. ⋯ Targeted multifidus activation reverses or prevents accumulation of connective tissue of the multifidus muscle spindle capsule caused by IVD injury. Reduced fibrosis should maintain sensory function of this important muscle mechanoreceptor and might provide an effective solution to resolve the commonly identified proprioceptive deficits in back pain and maintain healthy spine function.
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This study aimed to elucidate the correlation between the degree of fat infiltration (FI) in thoracic paraspinal muscles and thoracic vertebral degeneration (TVD). ⋯ Higher FI is associated with more severe TVD. Studies on TVD are currently limited; therefore, this study enriches the related research on TVD, and our findings would facilitate the early prediction and diagnosis of TVD in clinical practice. Furthermore, our findings indicate that thoracic spine pain (TSP) caused by TVD can be prevented, potentially improving the prognosis of patients with TSP.