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Cartilage - Springer Nature

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Last Updated: 10 September 2022

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Investigating acute changes in osteoarthritic cartilage by integrating biomechanics and statistical shape models of bone: data from the osteoarthritis initiative

Sixteen women with symptomatic knee osteoarthritis were recruited, according to the Methods. Bone shape was quantified using a statistical shape model created from 13 local participants and 100 MRI scans from the Osteoarthritis Initiative. Statistical parametric modeling demonstrated cartilage change and correlations between cartilage change with JRFs and statistical shape model features. After walking, the greater tibiofemoral JRF was linked to more cartilage deformation on the lateral femoral trochlea. In vivo, these findings reveal that cartilage deformation is largely dependent on bone shape and JRFs.

Source link: https://doi.org/10.1007/s10334-022-01004-8


Costal cartilage fractures in blunt polytrauma patients — a prospective clinical and radiological follow-up study

Purpose With follow-up imaging and clinical investigation, it was possible to assess costal cartilage fractures in patients with blunt polytrauma. Methods The study team consisted of twenty-one patients with severe CCFX in trauma CT. All of the patients underwent MRI, ultrasound, ultra-low-dose CT examinations, and clinical status monitoring. The images regarding fracture union, displacement, calcifications, and persistent edema at the fracture site were reviewed by two radiologists. Trauma registry records were used to determine injury severity and outcome. Conclusions After the initial injury, patients were seen at an average of 34. 1 months after the initial injury. In all patients, Cartilage calcifications were seen on healed fracture sites. In 5 patients, the fracture dislocation had increased, and 1 patient had signs of a non-stable union, with one patient showing signs of a non-stable union. Four patients had persistent CCFX signs, according to Four patients. Between patients with radiologically healed and non-healed CCFX, there was no significant difference in QoL. Other non-thoracic injuries accounted for the bulk of the post-traumatic injury.

Source link: https://doi.org/10.1007/s10140-022-02066-w


Conventional MRI-derived subchondral trabecular biomarkers and their association with knee cartilage volume loss as early as 1 year: a longitudinal analysis from Osteoarthritis Initiative

Mission: Using the FNIH osteoarthritis biomarkers consortium, the aim was to investigate the relationships between MRI-derived subchondral biomarkers obtained from conventional MRI sequences and knee cartilage loss over 12 to 24 months. Using Relative Change Index, cartilage volume loss over 12 and 24 months of follow-up was determined using the OAI database, including baseline, 12-month, and 24-month knee MRIs. Results At baseline, higher medial cTbTh and cBV/TV were both correlated with an increased risk of medial tibial cartilage volume loss of over 12 months and 24 months. During the first and second follow-up years, there was no significant correlation between medial subchondral biomarkers and lateral tibial or femoral cartilage volume loss. Conclusions - Conventional MRI-derived subchondral biomarkers can be attributed to increased medial tibial cartilage volume loss as early as 1 year.

Source link: https://doi.org/10.1007/s00256-022-04042-4


The Role of Selenium-Mediated Notch/Hes1 Signaling Pathway in Kashin–Beck Disease Patients and Cartilage Injury Models

The Se levels in the flour of KBD areas were lower than those of the non-KBD areas, and KBD patient serum Se levels were lower than those of the controls, according to the study. In the whole blood of KBD patients, the expressions of BCL1 and Hes1 were higher than those of the controls, and Notch1, Jagged1, and Hes1 were higher than those of the controls, and Notch1 was negatively linked to the presence of BCL2 in the control group, while Notch1 was positively correlated with BAX. In injury, chondrocytes induced by low Se and tBHP, the expression of Notch1, Jagged1, and Hes1 increased, apoptosis, and necrosis rates in Se deficiency and tBHP groups increased, though Se supplementation reversed it. Poor diet Session In KBD patients, decreased plasma Serum Decreased plasma Serum may be due to reduced dietary Se. A new potential target for KBD development may be the importance of Notch/Hes1 signaling pathway in KBD development.

Source link: https://doi.org/10.1007/s12011-022-03387-0


Osteophytes mediate the associations between cartilage morphology and changes in knee symptoms in patients with knee osteoarthritis

Aims To determine whether the correlations between cartilage defects and cartilage volume changes in knee pains were mediated by osteophytes, osteophytes. Results The study included a total of 334 people with symptomatic knee osteoarthritis in the study. Following adjustment for age, sex, body mass index, and intervention, cartilage defects were highly related to total knee pain, change in fat-bearing pain, and change in non-weight bearing pain after injury change. Mitetal tibiofemoral and patellar osteophyte mediated the link between cartilage abnormalities with increase in total knee pain and increase in weight loss, as well as increases in weight bearing pain and dysfunction. There were no direct effects on knee pain change between cartilage defects and cartilage volume, but not necessarily, as knee swellings had no effect on reduction in knee pains. Conclusions The significant correlations between cartilage morphology and leg pain changes were indirect, and they were partially mediated by osteophytes.

Source link: https://doi.org/10.1186/s13075-022-02905-8


Articular cartilage delamination at eight years following cellular-based repair procedures: a case reports

This paper discusses two cases of late cartilage delamination in two young adults following two different autologous cell-based methods for cartilage restoration: 1. It's likely that, regardless of the technique or time after the surgery, a graft failure could occur at some level, resulting in the degeneration of a previously asymptomatic cartilage repair graft and a painful follow-up, which could lead to a graft failure.

Source link: https://doi.org/10.1186/s40634-022-00527-2


Complications Associated with Autologous Costal Cartilage Used in Rhinoplasty: An Updated Meta-Analysis

Objective To quantify the difficulties of using autologous costal cartilage as grafts in rhinoplasty objectively and systematically with newly published research. Results Twenty studies involving 1648 patients were included in meta-analysis for meta-analysis. The incidence of donor-site morbidities was 2. 08%, and pneumothorax was 0%. For the recipient site, complications did not include revision surgery, 9. 0 percent at the donor website and 15. 1 percent overall, with 9. 0 percent at the donor site. The recipient-site adverse event incidence rate was 12. 4 percent. Warping was the most common complication after rhinoplasty with autologous costal cartilage, according to the authors. In these years, the revision after rhinoplasty using autologous costal cartilage was upped. After rhinoplasty with autologous rib cartilage of 22 percent, complications on both directions increased the complication rate. Authorship: Evidence III This journal includes evidence that the authors provide each article with a certain degree of credibility.

Source link: https://doi.org/10.1007/s00266-022-03075-3


3D printing of alginate/thymoquinone/halloysite nanotube bio-scaffolds for cartilage repairs: experimental and numerical study

The printing process of bio-scaffolds is one of the new developments in 3D printing. Cell growth and proliferation are encouraged by the 3D printing of real materials for cartilage repairs. According to the findings, alginate and halloysite nanotube improved the printing quality and mechanical performance of biomaterials. Tensile strength in bio-ink increased to 372 kPa, 40 mg/ml of halloysite nanotube with 5% of thymoquinone, up to 372 kPa, while compressive strain hit 894 kPa, with a maximum stress of 39 kPa. The scaffold structure's tensile and compressive characteristics depend on the space between printed rows, according to Numerical results. Compared to pure alginate bioscaffolds, the biocom with 30 mg/ml of alginate, 40 mg/ml of halloysite nanotube with 5% of thymoquinone had a good mechanical and biological activity.

Source link: https://doi.org/10.1007/s11517-022-02654-5


Was wissen wir aus der Grundlagenforschung über Minced-cartilage-Techniken?

The minced cartilage implantation process is an emerging one-step procedure that is gaining in importance. Many studies have concentrated on the scientific foundations of articular cartilage repair. This paper provides an overview of the available underlying scientific literature and, with a focus on cell viability, cellular migration, outgrowth behavior, and extracellular matrix synthesis, raises the issue of whether basic science quantitatively knows about these topics in MCI contexts. In den letzten Jahrzehnten, a slew of materials und Methoden wurde fefcr die Gelenkknorpeldefekten Reparaturen einfu00fchrt.

Source link: https://doi.org/10.1007/s00142-022-00560-4

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions