Microvascular skin coverage in wounds that expose the Achilles tendon

Achilles tendon rupture is one of the most frequent tendon ruptures. Surgical intervention is the best option, but it has a high rate of complications leading to skin infections and necrosis. Extensive and aggressive debridement is necessary, producing tendon exposure and large skin defects. There are many alternatives for the skin coverage of the Achilles tendon, like sequential closures, vacuum assisted closure, local flaps, regional flaps, and more recently and efficiently microsurgery flaps. Skin defects in the Achilles tendon region have many peculiarities in comparison with other parts of the body: it is a zone that is always under mechanical stress due to footwear, this is why it must be highly resistant but thin. Its coverage must have sensitive properties, endure tendon gliding and allow early rehabilitation. Sometimes tendon reinforcement or creation or a neo tendon will be needed. For fulfilling these requirements free flaps by microsurgery are the only option in 90% of the cases. In this review article, we analyze three of the most frequently used free flaps in reconstructive medicine for complex Achilles tendon defects; free radial forearm flap, free radial forearm flap with vascularized flexor carpi radialis tendon and free anterolateral thigh (ALT) flap with vascularized fascia lata. This choice will be determined by the number of tissues involved, size of the defect, etiology of the defect, overall condition of the affected extremity and quality of neighboring tissues.

Free radial artery forearm flap reconstruction of forehead defect in a 2-year-old child

Reconstruction of soft tissue defect with exposed bone over the forehead is a technical challenge in pediatric population. The options vary from skin grafting, local flaps to complex microvascular tissue transfer. The local flaps leave unsightly scar in the neighboring area and may violate the hair bearing scalp, hair line and the direction of hair. Skin grafting requires a vascular bed for its take and the aesthetic appearance is inferior. The tissue expansion in an acute stage may not be an option. Here we present our experience of soft tissue reconstruction of a forehead defect in a 2-year-old child with free radial forearm flap (RAFF). To best of our knowledge free radial forearm flap has rarely been reported for usage in reconstruction of forehead defect in pediatric population.

Iatrogenic Damage of the Pedicle of Radial Forearm Free Flap Repaired with Super-Microsurgery Techniques: A Case Report

Introduction: Accidental Iatrogenic damage of the pedicle or perforators has been frequently reported as a cause of failure of free flaps. Free radial forearm flap helps to cover defects that are not possible to cover with local flaps or skin graft.Case Presentation: A 91 years old patient with Bowen Disease had multiple actinic keratosis and a history of squamous cell carcinoma over the forehead, which was removed 4 years before. The recurrent tumor was detected and wide excision of the tumor was done. It resulted in a large defect of 8 x 5.5 cm2 in diameter at the forehead with exposure of bone, therefore, a free radial forearm flap was performed for reconstruction with right superficial temporal artery and vein as recipient’s vessel. We observed leakage of blood through the radial artery near to the anastomosis due to iatrogenic damage during flap harvesting.Conclusions: Nowadays, repairing iatrogenic damage through the main pedicle or perforators of the pedicle is possible with super-microsurgery technique due to the improvement of the skills and smaller sutures avoiding the obstruction of the lumen of the pedicle or perforator. This is considered a salvage procedure instead of harvesting new free flaps and can be useful for all kinds of free flaps.