RESUMO
<p><b>OBJECTIVE</b>To summarize clinical application of one-stage toenail lengthening in free second toe transfer for reconstruction of the thumb (finger).</p><p><b>METHODS</b>Nine patients (male 7, female 2) underwent thumb (finger) reconstruction with second toe transfer were treated by one-stage toenail lengthening technique. Eight were the thumb and 1 was the index finger. Patients aged from 18 to 46 years,with an average of 25 years. A rectangle skin was resected at 0.5 cm away from the eponychium, which was 0.2 cm high and as wide as the toenail. Then stripped U shape flap gently towards proximal end and sutured it. During the operation, the injury of the subcutaneous vascular network should be avoided.</p><p><b>RESULTS</b>Superficial infection at donor area happened in 1 case and was healed by changing dressings. All the reconstruction thumbs (fingers) had survived completely. 2 to 3 mm extending of toenail length was obtained and the appearance of thumb (finger) was improved. There was no growth deformation of toenail. After 7 to 24 months follow up (the average time 13 months), the appearance of the nail was good.</p><p><b>CONCLUSIONS</b>One-stage toenail lengthening in free second toe transfer for reconstruction of the thumb (finger), which can obtain a satisfactory appearance of the nail and have no influence on the motion of the reconstruction thumb (finger), is a simple and an effective operative procedure.</p>