Abstract: Morel-Lavallée lesion is a serious closed soft tissue degloving injury. It is mainly caused by high energy shear force, which can occur in different parts of body, often accompanied by pelvic, acetabular and other types of fractures. Although the incidence of this injury is not high, this kind of injury is very special. It is difficult to be identified in the early stage, and has a high rate of misdiagnosis and missed diagnosis. Clinical surgeons do not pay enough attention to this kind of injury, and often not timely or improperly handled, resulting in necrosis of skin and soft tissue, infection and many other complications. There is no standard classification system for Morel-Lavallée injury, which mainly relies on MRI radiological characteristics, but it has no practical significance for guiding clinical treatment and prognosis. Treatment options are varied, including pressure dressing, percutaneous aspiration, sclerosis, conservative treatment and open debridement. In this paper, the research status of Morel-Lavallée injury is reviewed.

Key words: degloving injuries, diagnosis, treatment, Morel-Lavallée lesion