Jupu Zhou1, Peng Su2, Jiaju Zhao1, Zhicheng Zuo1, Zhenhua Zhu1, Kailong Zhou1. 1. Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University Suzhou 215004, Jiangsu, China. 2. Department of Orthopedics, The Second Affiliated Hospital of Soochow University Suzhou 215004, Jiangsu, China.
Abstract
OBJECTIVES: This study aimed to investigate the effect of arterial blood supply on the survival area of retrograde island flap. METHODS: The vein and saphenous artery in rabbits were selected to design the reverse-flow island flap experimental model. Forty rabbits were randomly divided into four groups: control group (group A), partial anastomosis of the saphenous artery group (group B), partial anastomosis of the vein group (group C), and no superficial vein group (group D). Flap survival was observed postoperatively, the survival area was measured, and the survival rate was compared. Blood distribution in the flap at different time points was observed by radionuclide imaging. RESULTS: The blood vessel distribution and blood cell status were observed histologically. The survival rate of flaps in group B was higher than that of the other three groups (P < 0.05). The radioactive material (RM) could be seen clearly in group B, whereas those in groups A, C, and D existed transiently. The RM in group B was higher than that in groups A, C, and D (P < 0.05). On postoperative day 10, group B had more capillary regeneration and blood cells than the other three groups (P < 0.05). CONCLUSIONS: Increasing blood supply can improve the survival rate of flaps, but simply promoting venous return has no significant effect on the survival rate of flaps. AJTR
OBJECTIVES: This study aimed to investigate the effect of arterial blood supply on the survival area of retrograde island flap. METHODS: The vein and saphenous artery in rabbits were selected to design the reverse-flow island flap experimental model. Forty rabbits were randomly divided into four groups: control group (group A), partial anastomosis of the saphenous artery group (group B), partial anastomosis of the vein group (group C), and no superficial vein group (group D). Flap survival was observed postoperatively, the survival area was measured, and the survival rate was compared. Blood distribution in the flap at different time points was observed by radionuclide imaging. RESULTS: The blood vessel distribution and blood cell status were observed histologically. The survival rate of flaps in group B was higher than that of the other three groups (P < 0.05). The radioactive material (RM) could be seen clearly in group B, whereas those in groups A, C, and D existed transiently. The RM in group B was higher than that in groups A, C, and D (P < 0.05). On postoperative day 10, group B had more capillary regeneration and blood cells than the other three groups (P < 0.05). CONCLUSIONS: Increasing blood supply can improve the survival rate of flaps, but simply promoting venous return has no significant effect on the survival rate of flaps. AJTR
Authors: Hyun Il Lee; Sung Han Ha; Sun O Yu; Min Jong Park; Sang Hoon Chae; Gi Jun Lee Journal: J Foot Ankle Surg Date: 2016-01-22 Impact factor: 1.286