Spontaneous psoas hematoma following posterior lumbar fusion surgery: a mini literature review.

Background: Spontaneous psoas hematoma is a very rare clinical entity, and the pathogenesis and pathologic mechanisms of spontaneous psoas hematoma remain unclear, thus, it is of great value to explore.

Case Presentation: We encountered a patient who developed femoral nerve paralysis due to psoas muscle hematoma following posterior lumbar fusion surgery. A 69-year-old female with lumbar spinal canal stenosis underwent posterior lumbar fusion at the L3-4 and L4-5 levels.

Association Between 25-hydroxyvitamin D Status and New Vertebral Fractures Post Percutaneous Vertebral Augmentation in Patients During Postmenopause: A Retrospective Case-control Study.

Background: Serum 25-hydroxyvitamin D (25[OH]D) deficiency causes osteoporosis and increases muscle weakness, which worsens the risk of falls and osteoporotic vertebral fractures. However, the effect of a lower serum 25(OH)D level on new vertebral fractures, including osteoporotic vertebral refractures and cascade vertebral fractures post percutaneous vertebral augmentation in patients during postmenopause has not been reported.

Objectives: This study aimed to investigate the relationship between serum 25(OH)D and the risk of osteoporotic vertebral refractures and cascade vertebral fractures.

Inhibition of Mettl3 ameliorates osteoblastic senescence by mitigating m6A modifications on Slc1a5 via Igf2bp2-dependent mechanisms.

Age-related osteoporosis is characterized by a marked decrease in the number of osteoblasts, which has been partly attributed to the senescence of cells of the osteoblastic lineage. Epigenetic studies have provided new insights into the mechanisms of current osteoporosis treatments and bone repair pathophysiology. N6-methyladenosine (m6A) is a novel transcript modification that plays a major role in cellular senescence and is essential for skeletal development and internal environmental stability.

The efficacy of nutritional screening indexes in predicting the incidence of osteosarcopenia and major osteoporotic fracture in the elderly.

Introduction: The effect of nutritional status on osteosarcopenia (OS) and major osteoporotic fracture (MOF) among the elderly is still unclear. So we aimed to compare the efficacy of the Mini-Nutrition Assessment-Short Form (MNA-sf), the Geriatric Nutritional Risk Index (GNRI) and Controlling Nutritional Status (CONUT) for predicting OS and MOF among the elderly.

Materials And Methods: A total of 409 participants were enrolled in this prospective study.

The Effects of Abdominal Obesity and Sagittal Imbalance on Sacroiliac Joint Pain After Lumbar Fusion.

Background: Postoperative sacroiliac joint pain (SIJP) is a common manifestation of failed back surgery syndrome after a posterior lumbar interbody fusion (PLIF). However, there is currently no consensus on the risk factors for SIJP after PLIF.

Objectives: We explored the effects of abdominal obesity and sagittal imbalance on SIJP after PLIF.

Vitamin D delays intervertebral disc degeneration and improves bone quality in ovariectomized rats.

Known to be involved in bone-cartilage metabolism, Vitamin D (VD) may play a role in human's disc pathophysiology. Given that postmenopausal women are prone to suffer VD deficiency and intervertebral disc degeneration (IDD), this study is intended to investigate whether VD can delay IDD in ovariectomized rats by improving bone microstructure and antioxidant stress. Female Sprague-Dawley rats were randomly allocated into four groups: sham, oophorectomy (OVX)+VD deficiency (VDD), OVX, and OVX+VD supplementation (VDS).

Anterior cervical discectomy and fusion with a zero-profile VA spacer device: a clinical and radiological study with two-year follow-up.

Study Design: A retrospective study.

Objective: The aim of this study was to compare clinical and radiological outcomes of the anterior cervical discectomy and fusion (ACDF) with a novel zero-profile variable-angle (Zero-P VA) spacer and a traditional poly-ether-ether-ketone (PEEK) cage and plate system in cases pertaining to cervical radiculopathy/myelopathy. There are two conventional types of ACDF procedures aimed at treating symptomatic cervical spondylosis.

FAM210A is essential for cold-induced mitochondrial remodeling in brown adipocytes.

Cold stimulation dynamically remodels mitochondria in brown adipose tissue (BAT) to facilitate non-shivering thermogenesis in mammals, but what regulates mitochondrial plasticity is poorly understood. Comparing mitochondrial proteomes in response to cold revealed FAM210A as a cold-inducible mitochondrial inner membrane protein. An adipocyte-specific constitutive knockout of Fam210a (Fam210a) disrupts mitochondrial cristae structure and diminishes the thermogenic activity of BAT, rendering the Fam210a mice vulnerable to lethal hypothermia under acute cold exposure.

Role of ferroptosis and immune infiltration in intervertebral disc degeneration: novel insights from bioinformatics analyses.

Intervertebral disc degeneration (IVDD), which contributes to stenosis of the spinal segment, commonly causes lower back pain. The process of IVDD degradation entails gradual structural adjustments accompanied by extreme transformations in metabolic homeostasis. However, the molecular and cellular mechanisms associated with IVDD are poorly understood.

α-Ketoglutaric acid ameliorates intervertebral disk degeneration by blocking the IL-6/JAK2/STAT3 pathway.

Intervertebral disk degeneration (IVDD) is the major cause of low back pain. Alpha-ketoglutaric acid (α-KG), an important intermediate in energy metabolism, has various functions, including epigenetic regulation, maintenance of redox homeostasis, and antiaging, but whether it can ameliorate IVDD has not been reported. Here, we examined the impacts of long-term administration of α-KG on aging-associated IVDD in adult rats.

Association Between Poor Nutritional Status and Increased Risk for Subsequent Vertebral Fracture in Elderly People with Percutaneous Vertebroplasty.

Background: The relationship between a poor nutritional state and the risk of fractures has not been investigated. This study aimed to investigate the ability of the Controlling Nutritional Status (CONUT) and Geriatric Nutritional Risk Index (GNRI) to predict the incidence of subsequent vertebral fracture (SVF) after percutaneous vertebroplasty (PVP).

Methods: A total of 307 women and 138 men over 50 years old who underwent PVP for osteoporotic vertebral compression fracture (OVCF) were included.

Computed tomography-based paravertebral muscle density predicts subsequent vertebral fracture risks independently of bone mineral density in postmenopausal women following percutaneous vertebral augmentation.

Background: The risk of subsequent vertebral fractures (SVF) after the primary vertebral fracture cannot be explained by lower bone mineral density (BMD) alone. Computed tomography (CT) measurements of paravertebral muscle density (PMD) are recognized radiographic markers used to predict physical function, fragile fractures.

Aims: This study aims to investigate the relationship between PMD and the risk of SVF in cohorts of postmenopausal women, and to determine if combining both PMD and BMD measures derived from CT can improve the accuracy of predicting SVF.

Ascorbic acid promotes nucleus pulposus cell regeneration by regulating proliferation during intervertebral disc degeneration.

Intervertebral disc degeneration (IVDD) affects human health. Ascorbic acid (AA) deficiency is a major factor that contributes to the development of degenerative disc disease in the elderly. Here, as a novel treatment with promising applications, we demonstrate that AA treatment inhibited senescence and maintained the proliferation of nucleus pulposus (NP) cells during long-term culture.

Association Between Abdominal Obesity and Subsequent Vertebral Fracture Risk.

Background: Obesity had been previously considered to be a protective factor against osteoporosis or fractures; however, recent research indicates that obesity, especially abdominal obesity, may increase the risk of some types of fractures.

Objective: We explored the effects of abdominal obesity on subsequent vertebral fracture (SVF) after percutaneous vertebral augmentation (PVA).

Study Design: A prospective observational cohort study.

Changes in intervertebral distraction: A possible factor for predicting dysphagia after anterior cervical spinal surgery.

Objective: Dysphagia following anterior cervical spine surgery (ACSS) is common. This study aimed to determine if change in intervertebral distraction following ACSS is associated with early dysphagia.

Methods: We retrospectively examined patients who underwent ACSS for myelopathy and/or radiculopathy in our institution.

Sarcopenic obesity defined by visceral adiposity was associated with osteoporotic vertebral fracture.

Background: Previous studies have reported that the fracture risk related to sarcopenic obesity (SO) may be influenced by the distribution of fat mass. Therefore, it is useful to explore a body component suitable for defining obesity when predicting fracture risk. This study was an attempt to explore the contribution of SO defined by visceral adiposity on the incidence of osteoporotic fracture.

Relationship between Vitamin D and Nonspecific Low Back Pain May Be Mediated by Inflammatory Markers.

Background: Vitamin D deficiency has been linked to nonspecific low back pain (Ns-LBP); however, the role of inflammation as a possible mediator between vitamin D levels and Ns-LBP is not well understood.

Objective: To explore the mediating effects of inflammatory markers on the relationship between vitamin D levels and pain outcomes.

Study Design: A retrospective study.

Evaluation of the Use of CT Attenuation for the Prediction of Subsequent Vertebral Fracture in Patients with Osteoporosis.

Background: Subsequent vertebral fracture (SVF) is one of the most common complications of percutaneous vertebral augmentation (PVA), which leads to lower back pain in patients. Low bone mineral density (BMD) is an independent risk factor for SVF. BMD measured using computed tomography (CT) trabecular attenuation correlates closely with BMD.

Association between handgrip strength and subsequent vertebral-fracture risk following percutaneous vertebral augmentation.

Introduction: The aim of this study was to investigate the association between handgrip strength (HGS) and the risk of subsequent vertebral fracture (SVF) after percutaneous vertebral augmentation (PVA).

Materials And Methods: A total of 340 patients aged over 50 years with osteoporotic vertebral fracture were enrolled in this 3-year follow-up investigation. HGS was measured with a hand-held dynamometer before PVA.

Estimation of the ideal correction of lumbar lordosis to prevent reoperation for symptomatic adjacent segment disease after lumbar fusion in older people.

Background: Symptomatic adjacent segment disease (ASDis) is a major complication following spinal fusion. Sagittal spinopelvic imbalance may contribute to the development of ASDis. However, the exact ideal correction of lumbar lordosis (LL) is unknown for different ages of people to prevent ASDis.

Sagittal imbalance, muscle atrophy, and osteoporosis: risk factors for revision posterior lumbar fusion surgery in patients with Parkinson's disease.

Objective: The aim of our study was to evaluate features and complications of patients with Parkinson's disease (PD) who underwent posterior lumbar fusion surgery for lumbar degenerative diseases (LDD), as well as the risk factors for revision.

Methods: Between January 2010 and December 2016, 132 patients were retrospectively identified for inclusion. Patients were divided into a 29 revision PD group and a 103 non-revision PD group.

Does the C3/4 disc play a role in cervical spondylosis with dizziness? A retrospective study.

Purpose: To investigate the effect of C3/4 disc degeneration on cervical spondylosis with dizziness (CSD) and to assess the curative effect of anterior cervical decompression and fusion (ACDF) in patients with CSD.

Method: Four hundred nineteen patients who underwent ACDF for treatment of myelopathy or radiculopathy were divided into dizziness and non-dizziness group. The visual analog scale (VAS) score and Japanese Orthopaedic Association (JOA) score were used to determine the intensity of dizziness and neurological symptoms, respectively.

Does vitamin D status influence lumbar disc degeneration and low back pain in postmenopausal women? A retrospective single-center study.

Objective: To investigate the relationship between serum vitamin D concentration and lumbar disc degeneration (LDD) in postmenopausal women and the epidemiologic factors affecting low back pain (LBP).

Methods: Between July 2017 and December 2018, 232 participants were retrospectively enrolled. Serum concentrations of bone turnover markers were measured using electrochemiluminescence assays.