Purpose: The anterolateral thigh flap is commonly applied to various body sites for reconstruction. However, surgeons often struggle against unexpected locations and the nature of perforator vessels during surgery. Thus, this study aimed to assess the accuracy and usefulness of color Doppler ultrasonography as a preoperative tool for the perforator position and course of anterolateral thigh flaps.Methods: A prospective study involving 77 anterolateral thigh flaps was conducted between March 2016 and February 2021. Among them, 37 perforators (group A) were detected using the preoperative color Doppler ultrasound, and the other 40 perforators (group B) were tested using a hand-held Doppler only. All patients in group A underwent color Doppler ultrasonography performed by a radiologist at our institution. The nature and course of the perforator vessels were recorded, and their precise locations were plotted in an orthonormal coordinate system.Results: A total of 37 anterolateral thigh perforator flaps (group A) were successfully dissected. The median distance between the preoperative color Doppler ultrasonography and the real location during surgery of the perforators was 7.50 mm, which was statistically smaller than 10 mm (p<0.001). This preoperative ultrasound test also had a success rate of 94.6% to determine the nature of the perforators (musculocutaneous type vs. septocutaneous type).Conclusion: Preoperative color Doppler ultrasonography provides a harmless, reliable, and accurate technique for visualizing the vascular anatomy of anterolateral thigh flaps. It has a high correlation with surgical findings, allowing surgeons to cope with variable vascular anatomy.

Background Fingertip injuries are very common; however, the reconstruction of volar pulp defects with nail bed defects is challenging in the absence of the amputated segment. We reconstructed fingertip amputations with nail bed defects using a new surgical approach: a subcutaneous flap and composite graft.Methods We treated 10 fingertip amputation patients without an amputated segment, with exposed distal phalangeal bone and full-thickness nail bed defects between February 2018 and December 2020. All patients underwent two-stage surgery: in the first stage, a subcutaneous flap was performed to cover the exposed distal phalanx, and in the second stage, a composite graft, consisting of nail bed, hyponychium, and volar pulp skin, was applied over the subcutaneous flap.Results All flaps survived and all composite grafts were successful. The wounds healed without any significant complications, including the donor site. The average follow-up duration was 11.2 months (range, 3–27 months). The new nail and the shape of the volar pulp were evaluated during follow-up. All patients were satisfied with their natural fingertip shapes and the new nails did not have any serious deformities.Conclusions A subcutaneous flap in combination with a composite graft fitting the shape of the defect could be another option for fingertip injuries without amputated segments.

Fingertip injury is one of the most common hand injuries. Although several types of advancement and cross-finger flaps exist, they would not be essential for nail bed defects. The authors present a simultaneous volar pulp and nail bed reconstructive technique that uses a second toe onychocutaneous free flap. Four patients without amputees underwent fingertip amputation reconstruction between 2011 and 2019. After thorough debridement, the defect size was estimated, and the digital arteries, nerves, and veins of the recipient were evaluated. The flap, composed of pulp tissue and nail bed, was harvested with continuity from the second toe. Additional split-thickness skin grafts were performed in two cases. All flaps survived without considerable complications. We evaluated the scar and contour, and nail growth was reported over Zook’s criteria grade B. The second toe onychocutaneous free flap provides a reliable option for fingertip defects that involve pulp tissue and nail bed without further amputation.

Negative-pressure wound therapy (NPWT) is widely used for open wounds in various anatomical sites. Extensive research has been carried out on the application of NPWT; exposed blood vessels in the periwound area are a known contraindication to NPWT. In this study, we report a case where a replanted finger with not only exposed vessels but also uncontrolled infection was treated with NPWT. A 60-year-old man visited our emergency department with incomplete amputation of his left index and middle fingers. After replantation of his two fingers, necrosis of the middle finger with severe methicillin-resistant <i>Staphylococcus aureus</i> infection complicated managing the wound. After 3 weeks of maintaining conventional wound dressings, we performed NPWT for successful granulation tissue formation and infection control. After the treatment, the wound was completely covered by a split-thickness skin graft. We thus suggest that NPWT can be an effective reconstructive method, including for intractable wounds with exposed pedicle and severe infection after replantation.

While it is the most frequently observed subtype of all cutaneous soft tissue sarcomas, dermatofibrosarcoma protuberans is still uncommon, with a high local recurrence rate. Although surgical resection could be a simple curative procedure, surgeons can encounter difficulties when dissecting or closing the wound, depending on the location and the size of the tumor. We present a case report of direct repair of soft tissue defect with intraoperative tissue expansion after sarcoma resection. A 62-year-old male visited our clinic with an approximately 1.5×1.5 cm-sized mass on his lower leg. We excised the mass, which a pathologic study confirmed as dermatofibrosarcoma protuberans. The authors planned a wide excision of the lesion as soon as possible. The excised lesion was not large; however, the soft tissue defect could not be closed by direct approximation. We eventually closed the tumor resection wound using a Foley catheter as a tissue expander. The patient’s wound healed well, albeit leaving a minimal scar. This case suggests that a Foley catheter could be an effective and versatile tool that is readily available in any medical setting, including after a small tumor resection in outpatient surgery.