TY - CHAP M1 - Book, Section TI - Pressure Injury/Ulcers A1 - Hamm, Rose A1 - Carey, Joseph N. PY - 2021 T2 - Essential Elements of Wound Diagnosis AB - Pressure injury/ulcers (PI/PUs) are a result of prolonged direct pressure, shear, or friction forces that injure soft tissue between the skin and underlying bony prominences. The sacrum/coccyx, heels, and greater trochanters are the anatomical areas most vulnerable to tissue injury; however, PUs can also occur on the occiput, ear, spine, scapula, acromion process, elbow, medial and lateral femoral condyles, patella, malleoli, and metatarsals—anywhere that there is little or no soft tissue over the bony prominence to dissipate the external and internal mechanical forces. The area most at risk depends upon the individual’s body build. Therefore, any treatment plan for prevention and/or treatment has to be very patient-specific. The global strategies for prevention are repositioning, mobilization, frequent skin assessments, skin protection, moisture management, adequate nutrition, and avoidance of shear and friction during functional activities. And of paramount importance is finding the source of the mechanical pressure, which is not always what it appears to be initially. For example, a PU on the lateral hip may appear to be from lying on one side too long; however, it could also occur from sitting in a wheelchair that is too narrow.1 The root-cause analysis of a PU, especially a deeper one, is determined by what the patient was doing, the surface upon which the patient was sitting/lying, and other risk factors, 48 hours prior to admission to a facility.2 SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/04/25 UR - accessphysiotherapy.mhmedical.com/content.aspx?aid=1179616042 ER -