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Osteoarthritis (OA) is the most prevalent chronic joint disorder and is a major cause of disability among the elderly population. The degeneration and damage of articular cartilage associated with OA can result in a diminished range of motion in joints, subsequently impacting fundamental activities such as ambulation, standing, and grasping objects. In severe cases, it may culminate in disability. Traditional pharmacological treatments are often accompanied by various side effects, while invasive surgical procedures increase the risk of infection and thrombosis. Consequently, identifying alternative new methods for OA treatment remains a formidable challenge. With advancements in responsive hydrogel drug delivery platforms, an increasing number of strategies have emerged to enhance OA treatment protocols. Injectable response hydrogel drug delivery platforms show many advantages in treating OA, including improved biocompatibility, prolonged drug release duration, elevated drug loading capacity and enhanced sensitivity. This article reviews the recent progress of injectable responsive hydrogel drug delivery platform for OA treatment over the past few years. These innovative methodologies present new strategies and directions for future OA treatment while summarizing a series of challenges faced during the clinical transformation of injectable response hydrogel drug delivery platforms. Overall, injectable responsive hydrogel drug delivery platforms show great potential in treating OA, especially regarding improving drug retention time and stimulus-responsive release at the lesion sites. These innovative methods provide new hope for future OA treatment and point the way for clinical applications. [ABSTRACT FROM AUTHOR]

Arthroscopic capsular release is a most well-known technique with favorable outcomes for frozen shoulder. However, considering the surgical trauma and the improvement of multisite injection, we design a study to compare the pain relief and safety of multisite injection (MI) versus arthroscopic capsular release (ACR) for frozen shoulder. A total of 80 patients with unilater al frozen shoulder were enrolled in this study. Group RBT (n = 40) received multisite injection (0.5% lidocaine and triamcinolone acetonide, once a week, no more than 2 injections), while Group ACR received arthroscopic capsular release. The following parameters were employed to compare: visual analog scale (VAS), range of motion (ROM), the Disability of Arm, Hand, and Shoulder (DASH) score and Oxford shoulder score (OSS). Side effects were also recorded. The VAS, ROM, DASH and OSS all improved significantly (P < 0.001). Internal rotation and external rotation at 1 month after operation were better in ACR group (40.35 ± 4.79 Vs 36.58 ± 7.49, 40.55 ± 4.37 Vs 38.63 ± 4.01, P = 0.009,0.043). However, no significance in terms of functional results and ROM was found at 6 months after operation. The OSS, DASH and VAS in patients with diabetes were 44.25 ± 3.05, 2.29 ± 1.12 and 0.50 ± 0.72, compared with 43.89 ± 3.09, 2.34 ± 1.49 and 0.29 ± 0.56 in patients without diabetes (P = 0.636, 0.889, 0.157). Multisite injection and arthroscopic capsular release are both effective treatments in the treatment of frozen shoulder. However, multisite injection is a simple, cost effective and superior alternative. [ABSTRACT FROM AUTHOR]

BACKGROUND: Previous studies on the clinical efficacy of total knee arthroplasty in the treatment of rheumatoid arthritis have been reported, but the effects of total knee arthroplasty on joint function and related biochemical parameters in patients with rheumatoid arthritis are little reported. Thereafter, more clinical evidence is needed. OBJECTIVE: To analyze the effect of total knee arthroplasty on joint function and related biochemical indicators in patients with rheumatoid arthritis. METHODS: Clinical data of 64 patients with 64 knees who underwent total knee arthroplasty were retrospectively analyzed. Comparative analysis of Hospital for Special Surgery, range of motion of the knee joint and quality of life scores before and 1 year after surgery was conducted. Changes of biochemical indicators such as C-reactive protein, rheumatoid factor and erythrocyte sedimentation rate were detected. The incidence of complications at 1 month after surgery was recorded. The study was approved by the Ethical Committee of Changzhou Traditional Chinese Medicine Hospital, and all patients signed the informed consents. RESULTS AND CONCLUSION: (1) Compared with the baseline levels, the Hospital for Special Surgery score, range of motion of the knee joint and quality of life scores at 1 year after surgery was significantly increased (P < 0.01 ), and the levels of C-reactive protein, rheumatoid factor and erythrocyte sedimentation rate were significantly decreased (P < 0.01 ). (2) One patient developed infection and two patients developed deep vein thrombosis of the lower extremity, which was relieved after symptomatic treatment. These results imply that total knee arthroplasty has a good dinical effect on rheumatoid arthritis, which can improve knee function and reduce the levels of C-reactive protein, rheumatoid factor and erythrocyte sedimentation rate, and has good safety. [ABSTRACT FROM AUTHOR]