Reconstruction of Soft Tissue Defects in the Hand with a Free Anterolateral Thigh Deep Fascia Flap.

OBJECTIVE: To report our experience in the reconstruction of soft tissue defects in the hand with a free anterolateral thigh deep fascia flap and describe the clinical outcomes.

METHODS: This study was a retrospective trial. From November 2016 to January 2020, six patients (four men and two women) with soft tissue defects in the hand were included in this study. The average age of the patients was 33.7 ± 12.7 years (range, 20 to 50 years). All patients underwent reconstructions with free anterolateral thigh deep fascia flaps. Relevant clinical characteristics were recorded prior to surgery. The size and thickness of the deep fascia flap and the thickness of the skin were measured intraoperatively. The survival of the flaps and skin grafts and the occurrence of infection were recorded after the operation. At follow-up, donor site complications and postoperative effects were evaluated according to the outcome satisfaction scale. The pain in the injured hand was assessed using the visual analog scale.

RESULTS: The average body mass index (BMI) was 26.6 ± 1.7 kg/m2 (range, 23.9 to 28.7 kg/m2 ). The defect sizes ranged from 5 cm × 5 cm to 13 cm × 8 cm (average, 53.1 ± 27.9 cm2 ). The six anterolateral thigh deep fascia flaps ranged from 7 cm × 6 cm to 14 cm × 9 cm in size (average, 71.8 ± 29.1 cm2 ). The thicknesses of skin ranged from 25 mm to 40 mm (average, 32.5 ± 4.8 mm), and the thicknesses of the deep fascia flaps ranged from 2 mm to 3 mm (average, 2.5 ± 0.5 mm). After the operation, the blood supply of the deep fascia flap was normal in all cases. The second-stage skin grafts of most patients survived completely. The skin graft in one case was partially necrotic and healed after a dressing change. No infection occurred. At follow-up (average, 16.3 ± 6.9 months), there was only a linear scar and no loss of sensation at the donor site of each patient. According to the outcome satisfaction scale, the outcome satisfaction score ranged from 6 to 8 (average, 7.2 ± 0.9), all of which were satisfactory. Apart from one patient who reported mild pain, all the other patients reported no pain. Three typical cases are presented in this article.

CONCLUSIONS: The free anterolateral thigh deep fascia flap, which is suitable for reconstruction of soft tissue defects in the hand, can provide very good outcomes both functionally and aesthetically.