This encourages independence in the patient and supports adherence. If appropriate, MAC can be fitted independently by the patient if he/she is still sufficiently mobile however, the hook-tape system also makes fitting the bandages easier for therapists, relatives, or carers. They can include separate components for the foot, calf, and thigh, and for the hand and arm. When applied, these systems present high stiffness. They consist of mostly inelastic materials and are fixed with Velcro or equivalents such as hooks. Medical adaptive compression systems (MAC) are also called adjustable compression wrap devices. In any case, a PCB consisting of several components or layers is better for healing than one consisting of just one component or layer. The same is true of adhesive and cohesive bandages. In this way, a PCB consisting of several layers of individual elastic bandages can finally assume the properties of inelastic bandaging on the leg. The elastic properties of the final bandage system, and thus its stiffness, can be altered by wrapping bandages over one another in several layers and by the use of different materials. Individual bandages shall be distinguished from bandage systems. PCB generally include the foot and ankle and go up as high as either the head of the fibula or the proximal thigh. Permanent bandages on the other hand, e.g., with multiple-component systems, are left on for longer, generally several days, and not removed at night. A changeable bandage is replaced daily, and in the best case also left on overnight. PCB can be designed as changeable or permanent bandages. While PCB (with bandages and bandage systems) and MAC are usually applied in the decongestion phase, MCS and ulcer stocking systems are used in the long-term therapy and maintenance phases, and MCS in prevention. They increase venous and lymphatic drainage and improve the muscle pump function. MCS and PCB have elastic properties, exercising continuous defined pressure on the limb. Prepared bandaging systems (known as multiple-component systems), medical adaptive compression systems (MAC), and multi-layer stocking systems (known as ulcer stocking systems) are also available for leg ulcer therapy. MCS are stocking-shaped knitted elastic garments the effect of PCB is achieved by the application of elastic and/or inelastic bandages. Therapy with medical compression stockings (MCS) or phlebological compression bandages (PCB) is indispensable in the treatment of phlebological and lymphological diseases of the arms and legs.
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