Degloving Injury / Morel-Lavallée Lesion Treatment | Infection, dressings and mobility

A Morel-Lavallée lesion is a closed degloving injury: shear forces separate skin and fat from fascia, creating a space where blood, lymph and necrotic fat collect. This collection can become encapsulated and prone to infection. In the reported spinal case, recurrent wound dehiscence, purulent drainage and hardware exposure accompanied infection, while negative wound and blood cultures were noted at discharge. In the thigh case, swelling with erysipelas and later exudate and pain occurred, with repeated tissue sampling and drains. MRI or ultrasound can detect the lesion, but distinguishing infection from sterile fluid relies on clinical signs and cultures, not imaging alone.

A Morel-Lavallée lesion is a closed degloving injury in which skin and tissue separate from deeper layers, leaving a space that can fill with lymph fluid, blood and fat. Treatment depends on type, severity and location, and MRI or ultrasound often helps diagnosis. Open degloving injuries are usually serious and require emergency care to reduce blood loss and prevent infection. In one described percutaneous drainage technique, fluid from the lesion is sent for culture and sensitivity, followed by debridement, lavage and closed suction drainage. In a delayed spinal case, tissue and fluid cultures grew Candida auris, with specialist multidisciplinary care for complex trauma, infection, possible wound breakdown and prolonged reconstruction in polytrauma patients.

NPWT is not a debridement method itself; it works after non-viable tissue has been removed. Sources describe it as a bridge to reconstruction: it removes excess exudate, lowers bacterial exposure, maintains a moist environment, manages wound fluid and may reduce dead space. It can increase granulation tissue, decrease swelling and improve local blood flow. It may allow reconstruction to be delayed while keeping the wound in an acute, cleaner state. It can prepare a wound for skin grafting or closure, but only after adequate hemostasis. It is avoided with exposed vessels, active infection, malignancy or untreated osteomyelitis, and it does not replace surgical or medical care.

General guidance says a clinician should first assess the reason for compression, blood flow, sensation, skin integrity, heart and lung health, fit and target pressure, with follow-up monitoring. Uneven or excessive pressure can injure skin, soft tissue or nerves, especially when blood flow or sensation is impaired. Small lesions may be managed with compression, but prolonged immobilization can risk pressure sores and reduced blood flow around the lesion. Compression garments may help prevent recurrence after aspiration or sclerotherapy in selected cases. Management depends on size, infection, associated injuries and patient stability; chronic lesions with a thick wall often recur after aspiration alone. Larger or complex lesions may need debridement, drainage or reconstruction.

Open degloving means skin and tissue rip away from deeper structures; closed injury leaves skin in place, and a Morel-Lavallée lesion can hide underneath and fill with fluid, blood and fat. Closed injuries are harder to diagnose, and an MRI can help identify them. Delayed recognition can allow accumulation and progression, and untreated closed injuries can lead to severe tissue death. During recovery, report red or discolored wound edges, swelling, oozing, fever or body aches. Early treatment is key to prevent infection, and open degloving needs emergency care to reduce blood loss and prevent infection. Prompt imaging and more frequent physical examinations are essential.

Degloving separates skin and subcutaneous tissue from deeper fascia, muscle or bone, while a Morel-Lavallée lesion is the fluid collection that can form in that space. Treatment ranges from compression, rest and physiotherapy for minor closed injuries to surgery, drainage or grafting for open or severe injuries. Associated pelvic, acetabular or femoral fractures can prolong restricted weight bearing. One knee case report described immobilizer use with gradual flexion and freedom from immobilizer at six weeks, but that is one case, not a universal rule. Readiness is judged by wound healing, swelling, pain, infection risk, imaging and any fracture fixation, not by a fixed day count. Surgeon will individualize timing based on healing.

A Morel-Lavallée lesion is a closed soft-tissue injury in which shearing forces separate subcutaneous fat from underlying fascia, disrupting capillaries and lymphatics and creating a space where blood, lymph and necrotic fat accumulate. These injuries often follow high-energy trauma and may be missed initially in polytrauma patients. When an adjacent fracture or spinal instrumentation is present, the risk of wound breakdown and infection rises, and delayed diagnosis may require surgery, negative pressure wound therapy or hardware revision. Early MRI or ultrasound is recommended before pseudocapsule formation. Multidisciplinary coordination among plastic surgery, infectious disease and rehabilitation services is essential to optimize outcomes. Even with aggressive management, chronicity and recurrent infection can prolong recovery.

A Morel-Lavallée lesion is a closed degloving injury: shear forces separate skin and subcutaneous tissue from deeper fascia, creating a cavity that can fill with blood, lymph and fat. Drains help remove fluid and reduce dead space. One percutaneous drainage description kept the drain on suction until output was below 30 mL in 24 hours, which may take about 8 days. General breast-reconstruction guidance records drain output twice daily and removes drains after output falls below 20 mL per day over two consecutive 24-hour periods, but neither is a degloving-specific home protocol. Chronic lesions can form a fibrous capsule and recur, so follow-up and imaging may be needed.

A Morel-Lavallée lesion is a closed degloving injury in which shearing forces separate skin and subcutaneous tissue from underlying fascia, creating a space where blood, lymph and fat can collect. Delayed recognition can allow fluid and necrotic fat to accumulate, and may lead to wound breakdown, hardware compromise or chronic infection. In one reported case, fluid reaccumulated three weeks after surgery with delayed healing, exudate and pain near the knee. Because persistent or evolving swelling can indicate a closed infection or recurrent collection, clinicians use prompt imaging and more frequent physical examinations. Residual swelling may be managed with compression therapy. Drains may remain until output is under 30 mL in 24 hours.

Scars and healing skin can become oversensitive or have reduced sensation after injury, because nerve endings in the skin are damaged. General scar guidance advises keeping a scar covered in the sun for at least one year and using sunscreen with SPF 30 or more. Pressure injuries can also develop where sensation or movement is reduced, so dressings should not increase pressure and basic wound care matters. These are general principles, not a personal protocol; your exact risk depends on where and how deeply tissues were injured. Follow your clinician's advice for dressing changes, skin checks, and any scar desensitisation programme. Please ask promptly if redness, swelling, soreness, or skin breakdown appears.