Endoscopic Resection of Chronic Morel-Lavallée Lesion of the Knee

The Morel-Lavallée lesion is a closed internal soft-tissue degloving injury. About 15.7% of Morel-Lavallée lesions occur in the knee region. Morel-Lavallée lesions are considered chronic when the lesion contains a capsule. The capsule prevents resorption of the fluid content, and the lesion will recur when using conservative treatment alone. Surgical debridement with resection of the capsule is a more definitive treatment option, but it may induce wound complications. In this Technical Note, the technical details of endoscopic resection of chronic Morel-Lavallée lesion of the knee are discussed. This minimally invasive technique has the advantage of better cosmetic results and fewer wound complications.