Experiencia en reconstrucción de tercio distal de pierna con colgajo libre de músculo gracilis

Perforator propeller flaps for lower extremity soft-tissue defect reconstruction: Shortening the learning curve

Background

The perforator propeller flap is an advantageous option for soft tissue reconstruction in the lower limb as it ensures the preservation of the main artery and muscle, eliminates the need for microsurgical reconstruction as well as provides "like with like" resurfacing of the defects. Despite this, it remains a technically demanding reconstructive option for residents and surgeons with little experience in perforator dissection. We aimed to evaluate the clinical outcomes of our patients whose soft tissue defects were addressed with propeller flaps.

Methods

A retrospective study of all propeller flap based reconstruction done on patients with soft tissue defects involving the distal third of the leg was undertaken from August 2018 to December 2020.

Results

28 patients were treated with propeller flaps for various lower extremity defects. The median defect size was 12 cm². The posterior tibial artery (PTA) was used in eleven cases (39.3%) and the peroneal artery (PA) in seventeen of the cases (60.7%). The complication rate was 28.6% (n = 8). The complete flap necrosis rate was 10.7% (n = 3) and partial flap necrosis rate was 7.1% (n = 2), The rate of venous congestion was 7.1% (n = 2) and wound dehiscence occurred in 3.5% (n = 1). There was a significant negative correlation between the number of cases performed by a resident and the operative time.

Conclusion

Although propeller flaps are a reliable option to address lower extremity defects, they have a long learning curve and require a good amount of experience and perforator dissection skills to reduce the probability of flap failure. We are of the opinion that residents should be adequately trained in this procedure to ensure optimal outcome delivery.

Propeller perforator flaps for coverage of soft tissue defects in the middle and distal lower extremities

INTRODUCTION

The middle and distal leg coverage is demanding procedure for reconstructive surgeon until evolution of local perforator flaps which becomes as valuable options in lower limb reconstruction. The goal of our study was to assess the results, reliability, safety, and possible complications of the local propeller perforator flaps in lower extremity reconstruction.

PATIENTS AND METHODS

We demonstrate a case series of 11 patients in whom we cover small-to-medium soft-tissue defects of the middle and distal leg by application of local propeller perforator flaps.

RESULTS

The site of soft tissue defects were in the distal third in 9 cases (81.8%) and 2 cases (18.1%) in the middle third. Flap dimensions ranged from 48 to 192cm², with an average size of 88.9 cm². The flap rotation was 180 degrees in (63.6%) of cases. The flaps were based on a single perforator of the posterior tibial artery in 8 (72.7%) cases and peroneal artery perforator in 3 (27.2%) cases. Complications were present in 18% of the perforator flaps which were based on peroneal artery perforator, one partial necrosis and one flap with a superfacial epidermolysis. The donor area is covered by split thickness skin graft in 63.6% of our cases and primary closure of in 36.3% of cases.

CONCLUSION

The perforator propeller flaps are safe, relatively simple procedure and consider as an ideal option in reconstructing small-medium defects of the middle and distal third of the leg which provide similar skin texture with low donor site morbidity.

Perforator Propeller Flaps for the Coverage of Middle and Distal Leg Soft-tissue Defects

Background:

Local propeller flaps preserve the main vascular arteries of the lower extremity and muscle function, avoiding the need for a microsurgical anastomosis and the benefit of providing a “like with like” coverage. Our goal in this study was to demonstrate the versatility, safety, and complications of the local propeller flaps for lower extremity reconstruction.

Methods:

We present a series of 28 patients in whom we used local propeller flaps to restore small-to-medium soft-tissue defects of the lower limb in different hospitals of Managua, Nicaragua.

Results:

Flap average dimensions were of 48 cm². Flap rotation was performed in 180 degrees in 85% of the cases. The propeller flaps were based on a single perforator, from the posterior tibial artery in 50%, anterior tibial artery in 39.3%, and peroneal artery in 10.7% of the cases. Complications occurred in 14% of the propeller flaps performed, with 3 partial necrosis of less than 15% of the flap transposed. Complications of the patients occurred in both sex groups; however, for the female group, there was a 75% of complications with a tendency toward statistical significance of P = 0.038. Donor site of the flap was closed primarily in 85.7% (24) of the cases.

Conclusions:

In our opinion, the availability and safety of local propeller flaps, justifies its use in cases where microsurgical techniques are not an option for the reconstruction of the middle and distal extremity, in small-to-medium defects of soft-tissue coverage of the lower limb.