Repair of Degloving Defect of Distal Segment of Thumb with Dorsal Radius Neurocutaneous Vascular Flap of Thumb and Adjacent Finger Flap
Objective To investigate the clinical effect of repairing degloving defect of distal segment of thumb with dorsal radius neurocutaneous vascular flap of thumb and adjacent finger flap.Methods From October 2017 to February 2021,the author's hospital used the dorsal radius neurocutaneous vascular flap of thumb and the adjacent finger flap of the index finger to repair 12 patients with degloving soft tissue defects of the distal thumb,the wound area was 2.0 cm×5.5 cm-3.5 cm×7.5 cm.The appearance and sensation of the skin flap,hand function and postoperative complications were followed up.Results The cutting range of dorsal radius neurocutaneous vascular flap of thumb was 2.0 cm×2.0 cm-3.5 cm×4.0 cm,and the adjacent finger flap of index finger was 1.5 cm×2.0 cm-3.0 cm×3.5 cm.The follow-up time was 6-18 months,with an average of 9.4 months.11 cases dorsal radius neurocutaneous vascular flap of thumb and 10 cases of adjacent finger flap survived well.In the long-term follow-up,10 cases had full thumb pulp and satisfactory appearance,and 2 cases had atrophy of thumb fingertip flap.The donor area of 12 flaps healed well,there was no obvious scar hyperplasia,and the function recovered well.The two-point sensory discrimination test of thumb abdomen was 7-16 mm and that of finger back was 6-11 mm.Hand function was evaluated:excellent in 8 cases,good in 2 cases and medium in 2 cases.Conclusion The repair of degloving soft tissue defects of the distal thumb with the dorsal radius neurocutaneous vascular flap of thumb and the adjacent finger flap of the index finger is simple and safe,and the clinical effect is good.It is worthy to be popularized in grass-roots hospitals.