Growth factors (GFs) are endogenous signaling proteins, that regulate cell migration, proliferation and differentiation in tissue regeneration. GFs’ concentrations in chronic wounds are pathologically reduced. This leads to a disruption of the healing process and makes chronic wounds treatment more complicated. There are drugs currently used in clinical practice, that contain GFs in a free form. However, their efficiency for chronic wounds treatment is limited, as GFs are quickly degraded in a proteolytic environment of chronic wounds. In order to overcome this limitation biocompatible molecular systems for targeted delivery and controlled release are proposed, such as: micro- and nanoparticles, hydrogels, scaffolds. GFs roles in the healing process, chronic wounds pathophysiology and molecular systems for GFs targeted delivery and controlled release are reviewed.

Diabetic foot syndrome (DFS) is a serious public health problem in developing countries, where medical resources are limited, and the vast majority of patients turn to medical facilities too late with severe forms of the disease and often in advanced stages.

Objective: to evaluate the effectiveness of negative pressure wound therapy (NPWT) in treating patients with a neuropathic form of DFS compared with traditional methods to reduce the number of high amputations and overall mortality in Ghana.

Materials and research methods. A prospective, non-randomized, comparative clinical study of the results of examination and treatment of 59 patients with type 2 diabetes mellitus (DM) was performed at the Seventh-day Adventist City Hospital (Ghana, West Africa), Kumasi University Hospital and the Effiduase District Hospital (Ghana, West Africa) in the period from January 1, 2011 to December 31, 2013, there were 37 female patients (63.3 %), 22 male patients (36.7 %). The volume of foot tissue damage varied from II to IV degree according to Wagner classification (II degree was diagnosed in 55.6 % of cases). The average age of patients was 31.5 ± 7.3 (20–72) years. The average duration of DM was 7.3 ± 4.2 years. Bacteriological examination of wounds showed that Staphylococcus aureus was most often an isolated pathogen. All microorganisms identified from patients’ wounds had high resistance to commonly used antibiotics. Patients were randomly assigned to groups. NPWT is the only topical treatment in the main group; traditional dressings with antiseptic solutions (iodophors) were used in the comparison group.

Study results. Comprehensive treatment of patients in both groups included surgical debridement of purulent foci, local treatment (NPWT or dressings with antiseptic solutions) and skin grafting or healing by secondary intention after the transition of the wound process to the reparative stage. None of the patients in both groups had a high amputation. Not a single fatal outcome has been recorded. In patients of the main group, the transition of the wound process to the reparative stage was carried out in a shorter time compared with those treated without NPWT.

Conclusion. Treatment of the neuropathic form of DFS with the NPWT (for example, patients in Ghana) reduces the hospital stay and the number of high amputations of the lower extremities, and improves the quality of life of patients.

The article presents a clinical case of a successful multi-stage surgical treatment of a patient with shin both bones open fracture and an extensive defect of skin and soft tissues in the fracture zone, complicated by the development of purulent infection.

The article presents the experience of successful complex surgical treatment of a patient with extensive purulent-necrotic lesion of the upper limb, caused by necrotizing fasciocellulitis. Comprehensive treatment included: surgical debridement, open postoperative wound management under dressings and skin grafting of the extensive granulating wound surfaces at the final stage.