Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Objectives: This study was carried out to investigate a new device for axial loading MRI (alMRI) in the diagnosis of lumbar spinal stenosis (LSS).
Methods: A total of 87 patients with suspected LSS sequentially underwent conventional MRI and alMRI using a new device with pneumatic shoulder-hip compression mode. Four quantitative parameters of dural sac cross-sectional area (DSCA), sagittal vertebral canal diameter (SVCD), disc height (DH), and ligamentum flavum thickness (LFT) at L3-4, L4-5, and L5-S1 in both examinations were measured and compared. Eight qualitative indicators were compared as valuable diagnostic information. Image quality, examinee comfort, test-retest repeatability, and observer reliability were also assessed.
Results: Using the new device, all 87 patients successfully completed alMRI with no statistically significant differences in image quality and examinee comfort from conventional MRI. Statistically significant changes were observed in DSCA, SVCD, DH, and LFT after loading (p < 0.01). SVCD, DH, LFT, and DSCA changes were all positively correlated (r = 0.80, 0.72, 0.37, p < 0.01). Eight qualitative indicators increased from 501 to 669 after axial loading, for a total increase of 168 (33.5%). Nineteen patients (21.8%, 19/87) developed absolute stenosis after axial loading and 10 of them (11.5%, 10/87) also had a significant reduction in DSCA (> 15 mm). The test-retest repeatability and observer reliability were good to excellent.
Conclusion: The new device is stable for performing alMRI and can exacerbate the severity of spinal stenosis, providing more valuable information for diagnosing LSS and reducing missed diagnoses.
Key Points: • The new axial loading MRI (alMRI) device could detect a higher frequency of patients with lumbar spinal stenosis (LSS). • The new device with pneumatic shoulder-hip compression mode was used to investigate its applicability in alMRI and diagnostic value for LSS. • The new device is stable for performing alMRI and can provide more valuable information for diagnosing LSS.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00330-023-09447-w | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ultrasonographic Analysis of Site-Specific Plantar Skin Thickness for Melanoma Staging and Excision.
Clin Anat
September 2025
Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea.
Plantar melanomas present unique diagnostic and surgical challenges owing to substantial regional variations in skin thickness. Although the Breslow thickness remains the primary criterion for staging and surgical excision, its application on plantar melanoma is complicated by the inherent thickness of the glabrous plantar epidermis, which may lead to tumor depth overestimation. Accurate assessment of plantar skin thickness is essential for optimizing staging accuracy and refining surgical margins.
View Article and Find Full Text PDFClinical efficacy comparison of internal fixation of locking compression plate and cannulated screw in treatment of elderly femoral neck fractures-a retrospective study.
Front Surg
August 2025
The First Affiliated Hospital of Hunan University of Chinese Medicine, Yuhua District, Changsha, Hunan, China.
Objective: To explore the clinical efficacy of internal fixation of locking compression plate and Cannulated Screw in treatment of elderly femoral neck fractures.
Methods: 175 patients with femoral neck fractures admitted to our hospital from January 2022 to December 2022 were enrolled in the study. 93 cases in the control group were treated with Cannulated Screw internal fixation, and 82 cases in the observation group were treated with locking plate internal fixation.
A biomechanical investigation of three fixation methods for unilateral denis type II sacral fractures using finite element analysis.
Front Bioeng Biotechnol
August 2025
Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China.
Objective: Due to its inherent high instability, the selection of fixation strategies for unilateral Denis type II sacral fractures remains a controversial challenge in the field of traumatic orthopedics. This study focuses on unilateral Denis type II sacral fractures. By applying three different fixation methods, it aims to explore their biomechanical properties and provide a theoretical basis for optimizing clinical fixation protocols.
View Article and Find Full Text PDFMicrosurgical reconstruction of the heel: evaluation and decision-making recommendations based on a case series.
Case Reports Plast Surg Hand Surg
September 2025
Plastic Surgery Unit, University Hospital Trust of Sassari, Sassari, Italy.
Reconstruction of the calcaneal region presents unique challenges due to its complex anatomy and critical weight-bearing function. This retrospective study aims to report our experience in cases of calcaneal defects repaired with various free flap types, and to evaluate the long-term outcomes of the reconstructions. We retrospectively reviewed 25 patients who underwent microsurgical free flap reconstruction for calcaneal defects between January 1997 and March 2022.
View Article and Find Full Text PDF[Irreductable lateral subatalar fracture-dislocation by entrapment of the posterior tibial neurovascular bundle: case report].
Acta Ortop Mex
September 2025
Servicio de Cirugía Ortopédica y Traumatología, Hospital Clínico Universitario-Malvarrosa. Valencia, España.
Introduction: subtalar dislocations, typical of high-energy trauma, are classified as medial, lateral, anterior or posterior depending on the deviation of the foot in relation to the talus. Lateral dislocation accounts for 17% of the total and has a worse prognosis. Immediate reduction is required to reduce the risk of sequelae, the incidence of which is around 90%.
View Article and Find Full Text PDF