ObjectiveTo introduce clinical experience of the modified lateral crural reverse island skin flap with two sets of blood supply system for aged ankle & foot soft tissue defect.MethodsOn the anatomy base that cutaneous artery branches of lateral crural reverse island skin flap and perforating branches of sural neurocutaneous vascular flap were originated from peroneal artery, we designed the modified lateral crural reverse island skin flap located in posterolateral cruris treated for aged ankle & foot soft tissue defect. The modified flap had two sets of blood supply system which were from lateral crural flap and sural neurocutaneous flap.ResultsAll 11 flaps survived. The skin grafting of donor sites healed well. Followed up 3-9 months, six cases were satisfactory. Five cases with extensor defect were regained by tendon transplantation after 3 months of the operations.Conclusion The modified lateral crural reverse island skin flap with two sets of blood supply system is a good method for aged ankle & foot soft tissue defect.

Objective To evaluate the clinical results of the thumb dorsoradial flap and the greater thenar flap for coverage of thumb soft tissue defect,and to provide guidance on clinical selection of flaps.Methods From January,2013 to June,2014,23 thumb dorsoradial flaps and 20 greater thenar flaps were used to repair the soft tissues defects in thumbs and were followed up to compare the results.Patient satisfaction,cold intolerance scores,TAM of the reconstructed thumb,sensation (pain and temperature sensation,Semmes-Weinstein monofilament test,static two-point discrimination) and blood perfusion of the flaps were recorded and analyzed statistically.Results Thumb dorsoradial flaps group:patient satisfaction was (36.97 ± 7.70)％,cold intolerance score was 58.96 ± 12.47,TAM of the thumb was (87.57 ± 12.83)°,median Semmes-Weinstein monofilament test was 3.61mm,static two-point discrimination was (14.22 ± 2.84)mm,and blood perfusion was (98.41 ± 15.66) PU.Greater thenar flaps group:patient satisfaction was (50.00 ± 10.80)％,cold intolerance score was 60.45 ± 14.10,TAM of the thumb was (95.00 ± 14.58)°,median Semmes-Weinstein monofilament test was 4.31mm,static twopoint discrimination was (20.70 ± 2.56)mm,and blood perfusion was (104.74 ± 14.12)PU.The greater thenar flap had a larger degree of satisfaction than the dorsoradial flap (P ＜ 0.05).Both pain and temperature sensation of the flap were regained in all cases,but the dorsoradial flap presented better Semmes-Weinstein monofilament score and static two-point discrimination(P ＜ 0.05).No differences were found regarding TAM of the thumb,cold intolerance score and blood perfusion of the flap (P ＞ 0.05).Conclusion The dorsoradial flap is suitable for repairing the thumb pulp defect due to its good sensation.For the small defect of non-functional dorsal area,the greater thenar flap will be a satisfactory method.