In-hospital mortality among patients with proximal femur fractures infected with COVID-19.

The COVID-19 pandemic has significantly reduced the number of orthopedic surgeries world- wide. The main reason for this was an introduction of numerous restrictions in the field of mobility, which resulted in reduction of circumstances predisposing to injuries. This had a positive impact on the overall readiness of the health system to fight the pandemic, thanks to saving human and material resources that could be successfully allocated in order to fight a new, previously unknown threat.

Pro-health measures as a creator of new behavior norms and attitudes.

The monograph analyzes health behaviors and main factors on the basis of which it is possible to transform a lifestyle generally focused on the well-being of an individual and society. According to WHO, health is a state of complete physical, mental and social well-being, and not only the absence of a disease. The definition clearly explains its multidimensional and multithreaded character dependent subjectively on every individual and on social and cultural conditions.

Total ankle arthroplasty with the use of Zimmer prosthesis and a review of the results of previous research conducted in this field.

The aim of this article is to describe surgical technique and early results of Total Ankle Replacement (TAR) from lateral approach using Zimmer TM prosthesis. The study uses theoretical knowledge which is the result of research conducted by other authors, and practical knowledge due to the fact that our center performs that type of operation. Arthrodesis as the current standard in the treatment of advanced degenerative ankle disease, apart from its advantages, also has many disadvantages.

Tenosynovial giant cell tumor.

Tenosynovial Giant Cell Tumor (TGCT) is a group of typically benign lesions arising from the synovium of joints, bursae and tendon sheaths. Depending on their growth pattern and clinical course, they are divided into localized and diffuse types. It is predominantly caused by a mutation in the stromal cells of the synovial membrane leading to overexpression of the colony stimulating factor 1 that recruits CSF1R-expressing cells of the mononuclear phagocyte lineage into the tumor mass.

The importance of the quality of information and the methods of its distribution in the process of promoting a healthy lifestyle.

Each piece of information is distributed in the form of a message. Its character takes various forms, it can be expressed by words or in images. It is the visual form which is the most effective tool of influence.