• Der Unfallchirurg · Oct 2021

    [Reconstruction of posttraumatic soft tissue defects of the ankle using free fascial flaps from the anterolateral thigh].

    • Andrej Ring, Hendrik Beutel, Pascal Kirchhoff, Sebastian Ulrich Bushart, Niklas-Chris Dellmann, and Farhad Farzaliyev.
    • Klinik für Plastische Chirurgie, St. Rochus Hospital, Glückaufstraße 10, 44575, Castrop-Rauxel, Deutschland. andrej.ring@ruhr-uni-bochum.de.
    • Unfallchirurg. 2021 Oct 22.

    BackgroundFree fascial flaps from the anterolateral thigh (ALT) were used to reconstruct soft tissue defects after trauma to the ankle. This modification was compared to the conventional fasciocutaneous method.Material And MethodsThe defect size, the thickness of the subcutaneous fat layer on the thigh and the extent of the soft tissue covering the ankle were determined retrospectively. The evaluations were compared between fascial (Fo) and fasciocutaneous flaps (Fc). The foot and ankle outcome score (FAOS) was used. Esthetic outcome surveys were carried out.ResultsA total of 18 isolated fractures of the ankle were evaluated. In 94% of the cases a closed soft tissue damage predominated. After fracture fixation using a plate, soft tissue defects with a mean area of 40.4 ± 13.1 cm2 (28-76 cm2) developed. The thickness of the soft tissue covering over the affected malleoli increased significantly in both groups as a result of the flap surgery (4.5 ± 0.7 vs. 21.1 ± 6.4 mm, p < 0.05). A significant difference was found when comparing the body mass index (BMI) between the groups (Fc 26.3 ± 3.4 kg/m2 vs. Fo 30.1 ± 4.2 kg/m2, p < 0.05). For both groups there was a positive correlation (r = 0.843) between the BMI and the thickness of the epifascial fat layer of the thigh. The FOAS survey revealed 75.9 ± 28.9 and 47.9 ± 32.4 points, respectively, for "function in daily life" and "foot and ankle-related quality of life". The esthetic reconstruction result was rated as "acceptable" by 55% and as "good" by 45%.DiscussionThe modified method of a free fascial flap from the ALT can be useful in situations where a bulky flap makes it difficult to fit it into the defect.© 2021. Springer Medizin Verlag GmbH, ein Teil von Springer Nature.

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