Muscle,Tendon, Ligament Tear and Propioception

Mechanoreceptors in healthy muscles, ligaments and tendons procure the sensation of the joint movement, joint position and stability. Loss of mechanoreceptors not only causes mechanical instability, but also leads to a disturbance in the neuromuscular control due to the loss of mechanoreceptors. The purpose of this review is to explore the anatomy of mechanoreceptors in soft musculoskeletal tissues and to analyze their function both in normal and pathological conditions

Surgical treatment of muscle injury. A review of current literature and indications

n/

Single platelet-rich plasma injection for early stage of Osteoarthritis of the knee

Purpose \u2003The purpose of this study was to determine the safety efficacy and outcomes of platelet-rich plasma (PRP) intra-articular injections for early stages of knee osteoarthritis (OA). Methods \u2003Twenty-five patients affected by grade I and II knee primary OA according to the Kellgren-Lawrence scale received a single intra-articular PRP injection. Patients were prospectively evaluated for 6 months. Visual analog scale (VAS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and Knee injury and Osteoarthritis Outcome Score (KOOS) scoring scales were used to evaluate clinical outcomes. Wilcoxon signed rank test was used to evaluate significance of improvement of WOMAC, KOOS, and VAS scores. Results \u2003Twenty-one patients completed 6-months follow-up. The median WOMAC score improved from 29.1 points (range: 17.4-60.4; standard deviation [SD]\u2009=\u200913.0) at baseline to 42.41 (range: 24.3-71.2; SD\u2009=\u200912.5) at final follow-up. Improvements in median KOOS and VAS score have been also found, from 37.49 points and 64.2 mm before injection to 59.71 points and 42.8 mm, respectively. All these improvements were statistically significant ( p \u2009<\u20090.05). No adverse reactions have been observed. Conclusion \u2003Treating knee OA with PRP injection is safe. A single dose of PRP seems to be effective in managing pain and improving quality of life in patients with low-grade knee OA. Level of Evidence \u2003Level IV, therapeutic case series

Effect of a Collagen-Based Compound on Morpho-Functional Properties of Cultured Human Tenocytes

Background: Greater Trochanter Pain Syndrome (GTPS) is the main reason for recalcitrant lateral hip pain. Gluteus medius and minimus tendinopathy plays a key role in this setting. An injectable medical compound containing collagen type I (MD-Tissue, Guna) has been produced with the aim to counteract the physiological and pathological degeneration of tendons. In this study we aimed at characterizing the effect of this medical compound on cultured human gluteal tenocytes, focusing on the collagen turnover pathways, in order to understand how this medical compound could influence tendon biology and healing. Methods: Tenocytes were obtained from gluteal tendon fragments collected in eight patients without any gluteal tendon pathology undergoing total hip replacement through an anterior approach. Cell proliferation and migration were investigated by growth curves and wound healing assay, respectively. The expression of genes and proteins involved in collagen turnover were analysed by real-time PCR, Slot blot and SDS-zymography. Results: Our data show that tenocytes cultured on MD-Tissue, compared to controls, have increased proliferation rate and migration potential. MD-Tissue induced collagen type I (COL-I) secretion and mRNA levels of tissue inhibitor of matrix metalloproteinases (MMP)-1 (TIMP-1). Meanwhile, lysyl hydroxylase 2b and matrix metalloproteinases (MMP)-1 and -2, involved, respectively, in collagen maturation and degradation, were not affected. Conclusions: Considered as a whole, our results suggest that MD-Tissue could induce in tenocytes an anabolic phenotype by stimulating tenocyte proliferation and migration and COL-I synthesis, maturation, and secretion, thus favouring tendon repair. In particular, based on its effect on gluteal tenocytes, MD-Tissue could be effective in the discouraging treatment of GTPS. From now a rigorous clinical investigation is desirable to understand the real clinical potentials of this compound

Hyperglycemia induces osteogenic differentiation of tendon derived mesenchymal stem cells

n/

Simple Parameters from Complete Blood Count Predict In-Hospital Mortality in COVID-19

The clinical course of Coronavirus Disease 2019 (COVID-19) is highly heterogenous, ranging from asymptomatic to fatal forms. The identification of clinical and laboratory predictors of poor prognosis may assist clinicians in monitoring strategies and therapeutic decisions

Professional liability in orthopaedics and traumatology in Italy

Interest in medical errors has increased during the last few years owing to the number of medical malpractice claims. Reasons for the increasing number of claims may by related to patients' higher expectations, iatrogenic injury, and the growth of the legal services industry. Claims analysis provides helpful information in specialties in which a higher number of errors occur, highlighting areas where orthopaedic care might be improved

Physiopathology of intratendinous calcific deposition

In calcific tendinopathy (CT), calcium deposits in the substance of the tendon, with chronic activity-related pain, tenderness, localized edema and various degrees of decreased range of motion. CT is particularly common in the rotator cuff, and supraspinatus, Achilles and patellar tendons. The presence of calcific deposits may worsen the clinical manifestations of tendinopathy with an increase in rupture rate, slower recovery times and a higher frequency of post-operative complications. The aetiopathogenesis of CT is still controversial, but seems to be the result of an active cell-mediated process and a localized attempt of the tendon to compensate the original decreased stiffness. Tendon healing includes many sequential processes, and disturbances at different stages of healing may lead to different combinations of histopathological changes, diverting the normal healing processes to an abnormal pathway. In this review, we discuss the theories of pathogenesis behind CT. Better understanding of the pathogenesis is essential for development of effective treatment modalities and for improvement of clinical outcomes