CHEN Ming 1 , WEN Gen 2 , CHENG Liang 2 , WANG Chunyang 2 , CHAI Yimin 2
  • 1Medical College of Soochow University, Suzhou Jiangsu, 215006, P.R.China;;
  • 2Department of Orthopedics, Shanghai Sixth People’s Hospital, Shanghai Jiaotong University.;
Neurofasciocutaneous flap; Perforator flap; Vascular pedicle; Flap survival; Rabbit
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Objective To investigate a best method of obtaining the sural neurofasciocutaneous flap by observing the models of different pedicles based sural neurofasciocutaneous flaps in rabbits and the effect of different pedicles on the survival of the flaps. Methods Forty adult New Zealand rabbits (male or female, weighing 2.5-3.0 kg) were randomly divided into 4 groups (10 rabbits in each). The flaps of 7 cm × 1 cm were designed at the lateral hind legs, and the pedicle was 0.5 cm
in length. In group A, the flaps were elevated based on a single perforator pedicle; in group B, the flaps were elevated based on fascia pedicle; in group C, the flaps were elevated based on perforator-plus fascia pedicle; and in group D, the flaps were elevated and sutured in situ. At 7 days after operation, the flap survival rate was recorded, and the blood flow in the center of the flap was monitored by laser doppler flowmetry. The perfusion unit (PU) was measured. Results After operation, the flaps had no obvious swell ing, and the flaps had good color at the proximal end, but pale at the distal end in groups A and B. Obvious swell ing was observed with pale color at the distal flaps in group C, but swell ing decreased gradually. However, the skin color became dark gradually in group D after operation. The flap survival rates were 74.0% ± 2.7%, 60.0% ± 2.5%, 75.0% ± 3.5%, and 0 in groups A, B, C, and D respectively after 7 days of operation. The PU values were 83.39 ± 4.25, 28.96 ± 13.49, 81.85 ± 5.93, and 8.10 ± 3.36 in groups A, B, C, and D respectively. There were significant differences in flap survival rates and PU values between groups A, B, C and group D (P  lt; 0.05). Significant differences were found between groups A, C and group B (P  lt; 0.05), but no significant difference between group A and group C (P  gt; 0.05). Conclusion The sural neurofasciocutaneous flap based on a single perforator pedicle has a rel iable blood supply and enough venous drainage, which is one of the best methods to obtain the sural neurofasciocutaneous flap.

Citation： CHEN Ming,WEN Gen,CHENG Liang,WANG Chunyang,CHAI Yimin. COMPARATIVE STUDY ON DIFFERENT PEDICLES BASED SURAL NEUROFASCIOCUTANEOUS FLAPS. Chinese Journal of Reparative and Reconstructive Surgery, 2011, 25(10): 1231-1234. doi: Copy