4,240 results match your criteria: "Back Pain Mechanical"

Anaesthetic and corticosteroid response immediately following epidural injection in patients with MRI confirmed lumbar disc herniation.

Musculoskelet Sci Pract

December 2024

Department of Mathematics, Massey University, East Precinct Albany Expressway, SH17, Albany, Auckland, 0632, New Zealand.

Objectives: To describe a rapid, community-based assessment, referral and management system for acute symptomatic LDH. To identify and describe specific local anaesthetic and corticosteroid patterns of pain intensity change during the first week post-epidural injection.

Setting: Private practice, specialist physiotherapy clinic, community-based radiology facility.

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Objective: To present the clinical result of spinal fixation system made entirely of Carbon-Fiber-Reinforced (CFR)-Hybrid Polyaryl-Ether-Ether-Ketone (PEEK).

Summary Of Background Data: Fusion surgery has been used to treat chronic low back pain caused by degenerative disk disease (DDD). The traditional pedicle screw system made of titanium, though biocompatible, can lead to complications, such as stress shielding and implant failure.

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Old thoracolumbar fracture with kyphosis (OTLFK) often results in low back pain, with intervertebral disc degeneration being a significant contributor. We hypothesized that patients with OTLFK exhibit distinct patterns of disc degeneration compared to those with chronic low back pain without kyphotic deformity. This study aimed to investigate the characteristics of disc degeneration in OTLFK patients and explore its association with sagittal spinal parameters and endplate injury.

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Applied research using the NIOSH lifting equation to optimize the design of shopping trolley for the elderly.

Sci Rep

December 2024

School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu, 610059, Sichuan, People's Republic of China.

In the context of an aging society, products for the elderly typically need to meet the criteria of ease of use and reduction of physical fatigue. Focusing on elderly shopping scene, combined with the ergonomic principles and JACK simulation software analysis, a method of mapping NIOSH lifting equation to the product optimization design is proposed to optimize the dimensions and styling design of the elderly shopping trolley as a carrier, to optimize length, depth, and basket height from the ground. When the handle height of the elderly shopping cart is adjustable to three levels: 795 mm, 908 mm, and 1021 mm, it can effectively reduce the pressure on the lower limbs.

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Biomimetic Proteoglycans for Intervertebral Disc (IVD) Regeneration.

Biomimetics (Basel)

November 2024

Spine Service & Spine Labs, St George & Sutherland School of Clinical Medicine, Faculty of Health and Medicine, University of New South Wales, Kogarah, NSW 2217, Australia.

Intervertebral disc degeneration, which leads to low back pain, is the most prevalent musculoskeletal condition worldwide, significantly impairing quality of life and imposing substantial socioeconomic burdens on affected individuals. A major impediment to the development of any prospective cell-driven recovery of functional properties in degenerate IVDs is the diminishing IVD cell numbers and viability with ageing which cannot sustain such a recovery process. However, if IVD proteoglycan levels, a major functional component, can be replenished through an orthobiological process which does not rely on cellular or nutritional input, then this may be an effective strategy for the re-attainment of IVD mechanical properties.

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Article Synopsis
  • Low back pain is mainly caused by degeneration of the intervertebral disc, prompting research into microRNA (miRNA) therapies which can modulate discogenic factors and inhibit degeneration.
  • Nonviral cell penetrating peptides (CPPs) are favored for delivering these miRNAs due to their targeted delivery and low immune response.
  • Results showed that dual miRNA delivery significantly enhanced discogenic marker expression and created a regenerative environment, indicating potential benefits for improved treatments for IVD repair.
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Targeting IL-20 alleviates inflammatory mechanical allodynia and reduces epidural fibrosis in post-laminectomy syndrome rat model.

Int Immunopharmacol

December 2024

Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Clinical Medicine Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Antibody New Drug Research Center, National Cheng Kung University, Tainan, Taiwan. Electronic address:

Background: Post-laminectomy syndrome (PLS) manifests as recurrent chronic back pain, with or without radiating leg pain, affecting 10-40% of patients following laminectomy. While surgical interventions can alleviate recurrent disc herniation or joint instability, medical management of PLS remains challenging due to unsatisfactory outcomes. Epidural fibrosis is a frequent cause of PLS, leading to nerve root tethering and dural sac compression.

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Intervertebral disc degeneration (IDD)-induced lower back pain (LBP) brings heavy burden worldwide. In the degenerated intervertebral disc, there is an increase in the accumulation of reactive oxygen species (ROS) and the infiltration of M1 macrophages, which leads to abnormal local inflammatory microenvironment and exacerbates IDD. In this study, we developed a novel injectable polyethylene glycol (PEG)-capped cerium ion-manganese ion (Ce-Mn) bimetallic nanozyme (CeMn-PEG) with strong ROS scavenging and M2-type macrophage polarizing abilities to efficiently alleviate IDD.

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Nonspecific cervical spine pain/neck pain/in medical personnel of north-eastern Poland-A cross-sectional study.

Front Med (Lausanne)

December 2024

Department of Integrated Medical Care, Faculty of Health Sciences, Medical University of Bialystok, Bialystok, Podlaskie Voivodeship, Poland.

Unlabelled: Both mechanical and psychological overload are inherent to the work of nurses and paramedics, resulting spondylogenic pain.

Aim Of The Study: To identify potential risk factors influencing the prevalence of non-specific cervical spine pain in professionally active nurses and paramedics.

Material And Methods: 324 nurses (53.

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Background: The authors describe the case of a 35-year-old male who presented with back pain and painful masses on his upper extremities. He had a known sacral lesion identified 1 year prior at an outside facility, suspected to be coccidioidomycosis on biopsy, but the workup was not completed because the patient left against medical advice and was lost to follow-up. Computed tomography (CT) and magnetic resonance imaging revealed lytic destructive lesions involving the calvaria, thoracolumbar spine, and sacrum, concerning for an active and disseminated infection.

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Intervertebral disc degeneration is the most common disease in chronic musculoskeletal diseases and the main cause of low back pain, which seriously endangers social health level and increases people's economic burden. Disc degeneration is characterized by NP cell apoptosis, extracellular matrix degradation and disc structure changes. It progresses with age and under the influence of mechanical overload, oxidative stress and genetics.

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A 70-year-old female underwent open reduction and internal fixation (ORIF) of her right ankle following a mechanical trip and fell two weeks before hospital admission. Two weeks following surgery, the patient experienced sudden-onset bilateral anterior thigh paresthesias and burning mid-back pain. Over the ensuing two days, the patient developed bilateral lower extremity weakness, bilateral lower extremity numbness, and urinary retention with constipation, which led to hospital presentation.

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Chronic lower back pain is the leading cause of disability worldwide, generating a socioeconomic cost of over $100 billion annually in the United States. Among the prominent causes of low back pain (LBP) is degeneration of the intervertebral disk (IVD), a condition known as degenerative disk disease (DDD). Despite the prevalence of DDD and multiple studies demonstrating its relationship with LBP, the mechanisms by which it contributes to pain remain unknown.

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Background: Low back pain is a common complication in patients with old thoracolumbar fractures with kyphosis (OTLFK), and intervertebral disc degeneration (IDD) is a major contributor. Mechanical abnormalities are believed to play a key role in the development to IDD. This study aimed to investigate the characteristics of lumbar disc degeneration and underlying mechanical mechanisms in patients with OTLFK.

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The pathogenesis and targeted therapies of intervertebral disc degeneration induced by cartilage endplate inflammation.

Front Cell Dev Biol

December 2024

Department of Spine Surgery and Innovative Laboratory of Orthopedics, Shenzhen Nanshan People's Hospital, Shenzhen, Guangdong, China.

Intervertebral disc degeneration (IVDD) is the leading cause of low back pain, where degeneration and death of nucleus pulposus cells within the intervertebral disc (IVD) can be obviously revealed. This degeneration can result in an imbalance in the extracellular matrix due to the loss of proteoglycans and water content, which can further lead to catabolic and anabolic dysfunction of the IVD. Recently, the dysfunction of cartilage endplate (CEP) during aging has drawn large attention due to its essential functions in contributing nutrient exchange and maintaining IVD homeostasis.

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Time Efficiency and Ergonomic Assessment of a Robotic Wheelchair Transfer System.

Sensors (Basel)

November 2024

Human Engineering Research Laboratories, Department of VA Pittsburgh Healthcare System, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA 15206, USA.

: Caregivers experience high rates of occupational injuries, especially during wheelchair transfers, which often result in back pain and musculoskeletal disorders due to the physical demands of lifting and repositioning. While mechanical floor lifts, the current standard, reduce back strain, they are time-consuming and require handling techniques that subject caregivers to prolonged and repeated non-neutral trunk postures, increasing the risk of long-term back injuries. : The aim was to assess the time efficiency and ergonomics of the powered personal transfer system (PPTS), a robotic transfer device designed for bed-to/from-wheelchair transfers.

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In situ monitoring of small molecule diffusion at solid-solid interfaces is challenging, even with sophisticated equipment. Here, novel chromogenic photonic crystal detectors enabled by integrating bioinspired structural color with stimuli-responsive shape memory polymer (SMP) for detecting trace amounts of small molecule interfacial diffusion are reported. Colorless macroporous SMP membranes with deformed macropores can recover back to the "memorized" photonic crystal microstructures and the corresponding iridescent structural colors when triggered by diffused small molecules.

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Intervertebral disc degeneration (IVDD) is a leading cause of low back pain that incurs large socioeconomic burdens. Growing evidence reveals that macroautophagy/autophagy dysregulation contributes to IVDD, but the exact role of autophagy and its regulatory mechanisms remain largely unknown. Here, we found that mechanical overloading impaired the autophagic flux of nucleus pulposus (NP) cells and .

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Feasibility of a novel back support device to improve spine stability and muscular activity during trunk flexion: A prospective cross-sectional study with healthy controls and low back pain subjects - preliminary.

Clin Biomech (Bristol)

December 2024

Musculoskeletal Biomechanics Research Lab, Department of Mechanical Engineering, McGill University, 845 Sherbrooke St. W, Montréal, H3A 0G4, Québec, Canada; Orthopaedic Research Laboratory, Research Institute MUHC, Montreal General Hospital, McGill University, Montréal H3G 1A4, Québec, Canada. Electronic address:

Background: Low back pain is a prevalent global condition often challenging to address due to the absence of a definitive diagnosis in over 80 % of cases. Manual lifting, common in many work environments, contributes to low back pain due to lumbar spine stresses, and existing assistive technologies like abdominal belts and exoskeletons have limitations in managing low back pain effectively. This paper presents a novel back support device designed to generate abdominal compression during flexion activities, potentially enhancing lumbar stability through increased intra-abdominal pressure.

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Introduction: Adult spinal Langerhans cell histiocytosis (LCH) presents a treatment challenge due to ongoing controversies. Traditional approaches such as curettage with bone grafting and internal fixation are preferred for severe cases involving mechanical instability, neurological deficits, or deformity. This study aimed to explore the efficacy of a customized approach involving simple posterior instrumentation without curettage or bone grafting in treating adult spinal LCH.

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Effectiveness of mobilization with movement on conditioned pain modulation, mechanical hyperalgesia, and pain intensity in adults with chronic low back pain: A randomized controlled trial.

Musculoskelet Sci Pract

November 2024

Interdisciplinary Group on Musculoskeletal Disorders, Faculty of Sport Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Spain; Research Group in Nursing and Health Care, Puerta de Hierro Health Research Institute-Segovia de Arana (IDIPHISA), 28222, Majadahonda, Spain; Department of Rehabilitation, Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain; Physiotherapy and Orofacial Pain Working Group, Sociedad Española de Disfunción Craneomandibular y Dolor Orofacial (SEDCYDO), Madrid, Spain.

Background: Chronic low back pain is associated with dysfunctions in endogenous analgesia mechanisms, as evaluated through conditioned pain modulation paradigms. Although mobilization with movement has demonstrated enhancements in conditioned pain modulation among patients with conditions such as knee osteoarthritis, its efficacy in chronic low back pain patients has yet to be established.

Objectives: To investigate the effects of mobilization with movement compared to sham mobilization in conditioned pain modulation, mechanical hyperalgesia, and pain intensity in chronic low back pain patients.

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Objective: To investigate the impact of tension and laxity in the sacroiliac interosseous ligament on lumbar spine displacement and force response in vibration environments.

Methods: A finite element model of the lumbar-pelvis, previously crafted and rigorously validated, was used to simulate ligament tension and laxity by adjusting the elastic modulus of the SIL under a sinusoidal vertical load of ±40 N at 5 Hz. Comparisons of lumbar spine horizontal and axial displacements as well as annulus fibrous stress, nucleus pulposus pressure, and facet joint force were performed, respectively.

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Objective: Traditional management of patients with metastatic epidural spinal cord compression (MESCC) consists of radiotherapy (RT) with or without surgical decompression. With extensive literature and the introduction of clinical frameworks, such as the neurologic, oncologic, mechanical, and systemic criteria and the epidural spinal cord compression scale, progress has been made in refining the appropriate treatment regimen. In this review, we analyze the existing literature to identify the consensus frameworks and the remaining gaps in clinical knowledge.

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Article Synopsis
  • * The objective is to explore the relationship between patient-reported physical function scores and HRU in non-surgical CLBP patients within a university health system from 2015 to 2020.
  • * By categorizing patients into Low Physical Function (Low-PF) and High Physical Function (High-PF) groups based on their PROMIS-PF scores, the study uses regression analyses to evaluate differences in HRU between these cohorts.
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Article Synopsis
  • The study examines how chair design affects posture and comfort during prolonged sitting, particularly the transition between good posture (TUPLs) and poor posture (TFCLs).
  • Data was collected from 16 healthy males using two types of chairs (Stationary and Swivel), focusing on kinematics and ground reaction forces during posture shifts.
  • Results showed that while switching to poor posture (TFCLs) increased comfort by reducing muscle activation, it also significantly increased stress on the lower back, suggesting that caution is needed when using swivel chairs for those prone to poor posture habits.
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