A Retrospective Cohort Study of 15 Cases of Pelvic Fractures Complicated by Morel-Lavallee Lesion

Some related factors of pelvic fracture and Morel-Lavallee injury (MLL) are preliminarily discussed, which provides some preliminary references for early clinical detection and research of such injuries.

Inclusion criteria: (1) The clinical symptoms are consistent with the diagnosis of pelvic fracture, and the diagnosis is confirmed by imaging, including emergency or sub-emergency CT data within 72 hours after injury. (2) The symptoms of the diagnosis of MLL were pain and swelling at the site of occurrence, a sense of soft tissue fluctuation found on physical examination, and a complete process of puncture drainage + negative pressure suction therapy. (3) The patients and their families have given informed consent to this study and signed the informed consent form, which meets the ethical requirements. Exclusion criteria: (1) Incomplete imaging data, especially the lack of emergency or sub-emergency CT data within 72 hours after injury. (2) Cases of other severe lower limb fractures such as femur and trochanter, and lower limb fractures combined with MLL injury have been reported in the literature.