Groin Coverage & Reconstruction

The groin is a uniquely hostile environment for wound healing. It is perpetually moist, exposed to bacteria, subject to movement with every step, and — after vascular or oncologic surgery — often contains exposed blood vessels, prosthetic grafts, or lymphatic channels that cannot be left without durable coverage. A wound complication in the groin can be life- or limb-threatening, and reliable reconstruction requires a surgeon who understands both the technical demands and the urgency.^1,2

When Is Groin Reconstruction Needed?

Groin wounds requiring reconstruction arise from several clinical settings:

• Post-vascular surgery wound breakdown: Femoral artery bypasses, aorto-femoral grafts, and endarterectomy sites can develop wound complications that expose the vessel or prosthetic graft. An exposed vascular graft is a surgical emergency — infection can cause graft blow-out, catastrophic hemorrhage, and limb loss. Flap coverage protects the graft and the limb
• Groin dissection after cancer treatment: Inguinal lymph node dissection for melanoma, vulvar cancer, penile cancer, or squamous cell carcinoma of the thigh leaves a large dead space, compromises lymphatic drainage, and frequently results in wound breakdown — particularly in previously irradiated groins
• Infected vascular grafts: When a prosthetic vascular graft in the groin becomes infected, management requires antibiotics, often partial or complete graft removal, and immediate flap coverage of the femoral vessels to prevent life-threatening bleeding
• Hidradenitis suppurativa: Chronic, severe hidradenitis of the groin can result in extensive scarring and tissue destruction requiring excision followed by flap reconstruction
• Radiation necrosis: Prior radiation to the inguinal region — for gynecologic, urologic, or soft tissue sarcoma treatment — can cause late-onset tissue necrosis that is refractory to wound care alone
• Traumatic groin wounds: High-energy trauma, degloving injuries, and infected wounds from IV drug use can create complex groin defects that require formal reconstruction

Why Groin Wounds Are High-Stakes

The consequences of a failed groin reconstruction are severe. Exposed femoral vessels without adequate soft tissue coverage are at risk for mycotic aneurysm formation and rupture — a rapidly fatal complication. Beyond hemorrhage, a persistent groin infection around a vascular graft can seed the entire graft with bacteria, requiring emergency graft explantation and extra-anatomic bypass. For these reasons, plastic surgical consultation — and timely flap coverage — is critical when groin wounds develop in vascular surgery patients.³

Wound VAC Therapy as a Bridge

Negative-pressure wound therapy (wound VAC) is an important temporizing measure for groin wounds that are not yet ready for formal flap reconstruction. VAC therapy reduces bacterial burden, stimulates granulation tissue formation, and manages wound exudate — preparing the wound bed for a more durable reconstruction. It is not a definitive solution for exposed vessels or infected grafts, but it can buy time in complex situations where immediate flap coverage is not logistically possible. In selected patients with chronic groin wounds without vessel exposure, extended VAC therapy may allow sufficient wound bed preparation for skin grafting rather than flap reconstruction.

Flap Options for Groin Reconstruction

The choice of flap depends on the size of the defect, the structures that require coverage, and the status of the surrounding tissue and vessels.

Sartorius Flap (Muscle Transposition)

The sartorius muscle — a long, strap-shaped muscle running from the anterior iliac spine to the medial knee — can be transposed medially to cover the femoral vessels in the groin. This is the simplest and fastest approach for covering exposed vessels after vascular surgery. The sartorius is detached from its proximal insertion and rotated over the femoral triangle, providing direct vascularized coverage. It does not provide skin coverage but creates a tissue barrier between the graft and the environment. However, studies suggest that sartorius flap complications are common, and for larger or more complex defects, more robust flaps are preferred.⁴

Gracilis Muscle Flap

The gracilis — a slender adductor muscle on the medial thigh — can be harvested and rotated into the groin as a pedicled muscle flap based on the medial circumflex femoral artery. It provides reliable, well-vascularized muscle bulk to fill the groin dead space and cover femoral vessels. Multiple series have demonstrated the gracilis flap to be safe and effective for groin coverage, with good limb salvage rates in infected graft cases.^5,6 The gracilis is particularly useful for deep groin defects where the volume of the muscle is needed to obliterate dead space.

Rectus Femoris Flap

The rectus femoris muscle, based on the descending branch of the lateral circumflex femoral artery, provides a large muscle belly with a long arc of rotation. It is particularly well-suited for groin defects extending into the lower abdomen or for cases requiring significant dead space obliteration. A retrospective study from a major vascular center found satisfactory outcomes with rectus femoris flaps for groin coverage after vascular procedures, with low rates of major complications.⁷

Anterolateral Thigh (ALT) Flap

For large groin defects — particularly those with extensive skin loss following oncologic dissection or radiation necrosis — the pedicled anterolateral thigh flap provides abundant skin and soft tissue. Based on perforators from the descending branch of the lateral circumflex femoral artery, the ALT can be rotated into the groin without sacrificing any muscle. Its large skin paddle makes it ideal for covering wide skin deficits after groin dissection. When the pedicled reach is insufficient, the ALT can be transferred as a free flap with microsurgical anastomosis to recipient vessels outside the zone of injury.

Lymphatic Complications

Groin dissection disrupts the inguinal lymphatic channels, resulting in lymphorrhea (persistent lymph leakage) and lymphedema of the lower extremity. These complications can be managed with:

• Compression therapy and lymphedema physical therapy: The first line of management for post-dissection lymphedema
• Wound care for lymph leaks: Persistent lymphorrhea from groin wounds should be managed conservatively with pressure dressings and activity restriction before considering reoperation
• Lymphovenous bypass or lymph node transfer: In selected patients with significant lymphedema, microsurgical procedures can improve lymphatic drainage. Dr. Lakhiani's microsurgical training encompasses these techniques and can be offered as part of a comprehensive reconstructive plan

Dr. Lakhiani's Approach

Dr. Lakhiani coordinates closely with vascular surgeons, surgical oncologists, and wound care specialists when evaluating groin wounds. His approach prioritizes:

• Early involvement when vascular graft exposure is suspected — waiting increases the risk of catastrophic vessel injury
• Thorough debridement of infected and non-viable tissue before flap coverage, in collaboration with vascular surgery
• Flap selection based on defect size, depth, available donor sites, and the structures requiring coverage
• Microsurgical expertise when pedicled options are insufficient or unavailable due to prior surgery or radiation
• Lymphedema evaluation and long-term follow-up for patients with post-dissection lower extremity swelling