Background: The present study aimed to investigate the healing of articular cartilage with boric acid (BA) injection in an experimental cartilage defect model of rabbit knee.
Methods: Nine skeletally mature female New Zealand White rabbits were used. The right knees of the rabbits were assigned as the study group and injected with the BA solution and the left knees of the rabbits as the control group. Under anesthesia, a cylindrical full-thickness osteochondral defect (4 mm in diameter and 3 mm in depth) was formed using a drill on the anterior side of the articular surface of the medial femur condyle. The BA solution was administered to the right knees of rabbits in the form of an intra-articular injection (8 mg/kg) for 6 weeks, at the same day and hours each week. The animals were euthanized at the end of the 2nd month.
Results: In both macroscopic evaluation and microscopic evaluation, statistically significant differences were observed in the BA injection group compared with the control group (p<0.05). In the macroscopic examination of the defect area, statistically significant differences were observed between the groups in terms of degree of defect repair, integration to border zone, and macroscopic appearance (p<0.05). The averaged results of all evaluated parameters of the International Cartilage Repair Society visual histological assessment score were better for the BA group.
Conclusion: The healing process of the cartilage injury could be improved by BA injection administration. In future, BA may safely be used as an additional treatment modality in clinical practice to enhance the healing process of cartilage injuries, which are commonly observed orthopedic problem.
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http://dx.doi.org/10.14744/tjtes.2020.17748 | DOI Listing |
Mater Today Bio
February 2025
Department of Orthopedics, the Fourth Medical Center of PLA General Hospital, Beijing, 100048, PR China.
A meniscus injury is a common cartilage disease of the knee joint. Despite the availability of various methods for the treatment of meniscal injuries, the poor regenerative capacity of the meniscus often necessitates resection, leading to the accelerated progression of osteoarthritis. Advances in tissue engineering have introduced meniscal tissue engineering as a potential treatment option.
View Article and Find Full Text PDFAm J Sports Med
January 2025
Department of Orthopaedics, Warren Alpert Medical School of Brown University/Rhode Island Hospital, Providence, Rhode Island, USA.
Background: Meniscal injuries that fail to heal instigate catabolic changes in the knee's microenvironment, posing a high risk for developing posttraumatic osteoarthritis (PTOA). Previous research has suggested that human cartilage-derived progenitor cells (hCPCs) can stimulate meniscal repair in a manner that depends on stromal cell-derived factor 1 (SDF-1) pathway activity.
Hypothesis: Overexpressing the SDF-1 receptor CXCR4 in hCPCs will increase cell trafficking and further improve the repair efficacy of meniscal injuries.
J Craniofac Surg
December 2024
Department of Endocrinology and Metabolism, West China Hospital, Chengdu, China.
This study aimed to explore the construction of experimental animal models replicating cartilage defects across diverse load-bearing sites, compare self-repair conditions, and examine the role of mechanical stimulation in cartilage self-repair. Experimental animal models were established in rabbits to simulate full-thickness cartilage defects without penetrating the subchondral bone, at various load-bearing sites, including the posterior femoral condyle, anterior femoral condyle and femoral trochlear of knee joint, and the humerus of the shoulder joint. The successful exposure and construction of cartilage defects at the anterior femoral condyle, femoral trochlear, and posterior femoral condyle through the medial extension of surgical incision.
View Article and Find Full Text PDFBMC Musculoskelet Disord
December 2024
Université de Lyon, VetAgro Sup, UPSP ICE 2021.A104, Marcy-l'Etoile, 69280, France.
Objective: This study aimed to assess the effects of an antioxidant-conjugated Hyaluronic Acid (HA), specifically HA-4-aminoresorcinol (HA4AR), on articular cartilage and subchondral bone in osteoarthritis (OA). We conducted a comparative analysis between HA4AR and a commercially available high molecular weight HA formulation in a rabbit model of OA.
Materials And Methods: Eighteen rabbits underwent unilateral anterior cruciate ligament transection (ACLT) and were divided into three groups of six: Saline-group, HA-group, and HA4AR-group, based on the type of intra-articular injection received.
Int Immunopharmacol
January 2025
The First Hospital of Hunan University of Chinese Medicine, Changsha 410007, China. Electronic address:
Knee osteoarthritis (KOA) is a chronic disease characterized by joint wear and cartilage degeneration. Current clinical treatments are based on symptomatic relief and are not effective in regenerating cartilage, and inflammation-induced cartilage damage accelerates the progression of osteoarthritis, making the protection of articular cartilage important for controlling the development of knee osteoarthritis. In this study, a biodegradable hydrogel (HA-Ca-Alg@Ica) loaded with Icariin (Ica) was prepared by in situ cross-linking of hyaluronic acid-calcium complex (HA-Ca) and sodium alginate (Alg-Na) for local sustained delivery of Ica.
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