Effective restoration of human intervertebral disc degeneration is challenged by numerous limitations of the currently available spinal fusion and arthroplasty treatment strategies. Consequently, use of artificial biomaterial implant is gaining attention as a potential therapeutic strategy. Our study is aimed at investigating and characterizing a novel knitted titanium (Ti6Al4V) implant for the replacement of nucleus pulposus to treat early stages of chronic intervertebral disc degeneration. Specific knitted geometry of the scaffold with a porosity of 67.67 ± 0.824% was used to overcome tissue integration failures. Furthermore, to improve the wear resistance without impairing original mechanical strength, electro-polishing step was employed. Electro-polishing treatment changed a surface roughness from 15.22 ± 3.28 to 4.35 ± 0.87 µm without affecting its wettability which remained at 81.03 ± 8.5°. Subsequently, cellular responses of human mesenchymal stem cells (SCP1 cell line) and human primary chondrocytes were investigated which showed positive responses in terms of adherence and viability. Surface wettability was further enhanced to super hydrophilic nature by oxygen plasma treatment, which eventually caused substantial increase in the proliferation of SCP1 cells and primary chondrocytes. Our study implies that owing to scaffolds physicochemical and biocompatible properties, it could improve the clinical performance of nucleus pulposus replacement.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5709513 | PMC |
| http://dx.doi.org/10.1038/s41598-017-16863-8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Clinical characteristics associated with cervical hydrated nucleus pulposus extrusion in dogs.
J Vet Intern Med
January 2025
Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA.
Background: Clinical characteristics of cervical hydrated nucleus pulposus extrusion (HNPE) in dogs compared to other causes of cervical myelopathy are not well described.
Hypothesis/objectives: To evaluate for clinical characteristics and mechanical ventilation likelihood associated with HNPE compared to other causes of cervical myelopathy.
Animals: Three hundred seventy-seven client-owned dogs from 2010 to 2022.
Evaluation of Cartilage-Like Matrix Formation in a Nucleus Pulposus-Derived Cartilage Analog Scaffold.
J Biomed Mater Res B Appl Biomater
January 2025
The Laboratory of Orthopaedic Tissue Regeneration & Orthobiologics, Department of Bioengineering, Clemson University, Clemson, South Carolina, USA.
The formation of fibrocartilage in microfracture (MFX) severely limits its long-term outlook. There is consensus in the scientific community that the placement of an appropriate scaffold in the MFX defect site can promote hyaline cartilage formation and improve therapeutic benefit. Accordingly, in this work, a novel natural biomaterial-the cartilage analog (CA)-which met criteria favorable for chondrogenesis, was evaluated in vitro to determine its candidacy as a potential MFX scaffold.
View Article and Find Full Text PDFDevelopment and validation of a predictive model and tool for functional recovery in patients after postero-lateral interbody fusion.
J Orthop Surg Res
January 2025
Hebei Orthopaedic Research Institute, Hebei Medical University Third Hospital, No.139 Ziqiang Road, Shijiazhuang, 050051, P.R. China.
Objective: The postoperative recovery of patients with lumbar disc herniation (LDH) requires further study. This study aimed to establish and validate a predictive model for functional recovery in patients with LDH and explore associated risk factors.
Method: Patients with LDH undergoing PLIF admitted from January 1, 2018 to December 31, 2022 were included, and patient data were prospectively collected through follow-up.
Patient-specific spine digital twins: a computational characterization of the idiopathic scoliosis.
J Orthop Surg Res
January 2025
Biomedical Engineering Department, Universidad de los Andes, Bogotá, Colombia.
Article Synopsis
- Scoliosis is identified through Cobb's angle, and this study aims to create a digital twin of the spine to analyze biomechanical stresses and disc degeneration related to idiopathic scoliosis using patient-specific data.
- A 3D computational model was developed that modifies intervertebral disc properties based on radiological measurements, validated by comparing with patient images; finite element analysis clarified the impact of deformity on spinal biomechanics.
- The results showed that the model accurately represented thoracic scoliosis and revealed that disc strain increases near the apex, with "type-C" curves at higher risk for herniation compared to "type-S," thereby enhancing understanding of scoliosis and aiding in treatment planning.
Validation and the role of PDK4 relevant to ferroptosis in degenerative lumbar disc disease.
J Orthop Surg Res
January 2025
Department of Orthopaedics, Qilu Hospital of Shandong University, No.107, Wenhuaxi Road, Lixia District, Jinan, Shandong Province, 250012, China.
Background: Ferroptosis was involved in the pathogenesis of intervertebral disc degeneration (IVDD). However, the exact mechanism of IVDD associated with ferroptosis still required deeper studies.
Method: The differentially expressed genes (DEGs) in rat lumbar disc tissue between the control and IVDD group treated with IL-1β were detected by RNA sequencing (RNA-seq).
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!