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Feasibility of a Novel Approach to Inguinal Lymphadenectomy: Minimally Invasive Groin Dissection for Melanoma
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Feasibility of a Novel Approach to Inguinal Lymphadenectomy: Minimally Invasive Groin Dissection for Melanoma
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Journal Article
Feasibility of a Novel Approach to Inguinal Lymphadenectomy: Minimally Invasive Groin Dissection for Melanoma
2010
Overview
Introduction
Inguinal lymphadenectomy for metastatic melanoma is reported to have a complication rate as high as 50%. Wound dehiscence has been reported to occur in more than half of these patients, and as a result many surgeons routinely use sartorius muscle transposition to protect against the potential for exposed vessels. We report feasibility of minimally invasive inguinal lymphadenectomy intended to minimize wound complications inherent to this procedure.
Methods
Five patients with histologically confirmed inguinal metastases from melanoma underwent minimally invasive inguinal lymphadenectomy. Procedures were performed via three ports: one at the apex of the femoral triangle, a second two fingerbreadths medial to the adductors, and the third two fingerbreadths lateral to the sartorius. No inguinal incision was utilized for the purpose of surgery. A standard melanoma dissection was performed through these ports: contents of the femoral triangle and 5 cm up onto the external oblique aponeurosis were removed. To validate this technique, sentinel node biopsy scars were excised to permit visual confirmation of adequate anatomic dissection.
Results
Five patients underwent minimally invasive inguinal lymphadenectomy for metastatic melanoma. Median operative time was 180 (range, 142–223) min, median hospital stay was 1 day, and two patients developed cutaneous erythema but neither suffered wound dehiscence. Median nodal yield was 10 (range, 4–13). Blood loss was <100 ml for all procedures. Median duration of drain usage was 8 (range 7–19) days.
Conclusions
Minimally invasive inguinal lymphadenectomy is feasible for patients with melanoma as demonstrated by nodal yield and visual inspection. This technique may reduce complication rates and wound dehiscence, and the risk of exposed vessels is minimized by eliminating the inguinal incision. This obviates the need for routine sartorius muscle transposition. A prospective, randomized trial comparing the open versus the videoscopic approach is currently in progress.
