14% after 7 days, and 1.64 ± 0.16% after 10 days (P < 0.001). Hb, flow, and velocity were found to be significant
factors on developing flap necrosis at the preoperative and postoperative time point (P < 0.0001), whereas SO2 and flow were significant predictors of necrosis at the time of pedicle ligation (P < 0.0001). The percentage changes of SO2 (P < 0.0001), flow (P < 0.0001), and velocity (P = 0.001) between the different time points were significant predictors of flap necrosis. The time needed for the complete autonomization of vascularized free flaps in their wound beds has been found as completed between the Selleckchem PFT�� 5th and 7th day postoperatively in this rat model. The area of flap necrosis depends on the present value of SO2, Hb, flow, and velocity at different time points, but, more importantly, also on the perioperative change of these parameters. © 2011 Wiley-Liss, Inc. Microsurgery, 2011. “
“In reconstructive surgery, preoperative planning is essential for optimal functional and aesthetic outcome. Creating a three-dimensional (3D) model from two-dimensional (2D) imaging data by rapid prototyping has been used in industrial design for decades but has only recently been introduced for medical application. 3D printing is one such technique that is fast, convenient, and relatively affordable. In this report, we present a case in which a reproducible method for producing a 3D-printed
“reverse model” representing a skin wound defect was used for flap design and harvesting. This comprised a 82-year-old man with an exposed ankle prosthesis after serial soft tissue debridements for wound infection. PF-6463922 datasheet Soft tissue coverage and dead-space filling were planned with a composite radial forearm free flap (RFFF). Computed tomographic angiography (CTA) of the donor site (left forearm), recipient
site (right ankle), and the left ankle was performed. 2D data from the CTA was 3D-reconstructed using computer software, with a 3D image of the left ankle used as a “control.” A 3D model was created by superimposing the left and right ankle images, to create a “reverse image” of the defect, and printed using a 3D printer. The RFFF was thus planned and executed effectively, without complication. To our knowledge, this is the first report of a mechanism of calculating a soft tissue wound defect and producing a 3D model that may be useful for Glutamate dehydrogenase surgical planning. 3D printing and particularly “reverse” modeling may be versatile options in reconstructive planning, and have the potential for broad application. © 2014 Wiley Periodicals, Inc. Microsurgery, 2014. “
“In the last decade perforator flaps have been used increasingly for different indications. Many regions may serve as donor site. In this respect the posterior thigh region (PTR) has been neglected as a potential donor site for many years. The purpose of this study was to provide complete mapping of perforators supplying the posterior thigh region.