Combined with supermicrosurgery and modified anterograde replantation for finger replantation in Yamano Ⅰ zone
10.3760/cma.j.cn114453-20210112-00014
- VernacularTitle:超级显微技术结合改良顺行再植法在YamanoⅠ区断指再植中的应用
- Author:
Zuguo XIONG
1
;
Rongjian SHI
;
Dawei ZHENG
;
Weiya QI
;
Xuyang ZHANG
;
·Yilihamu YILIZATI
Author Information
1. 徐州仁慈医院手显微外科 221004
- Keywords:
Hand injuries;
Replantation;
Microsurgery;
Yamano Ⅰ zone;
Fingertip
- From:
Chinese Journal of Plastic Surgery
2021;37(9):1019-1025
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the clinical effect of supermicrosurgery combined with modified anterograde replantation in Yamano Ⅰ zone.Methods:To retrospect and analysis the data of replantation of amputated finger in Yamano Ⅰ in Xuzhou Renci Hospital from March 2016 to October 2019. All patients were treated by supermicrosurgery combined with modified anterograde replantation method. The modified anterograde replantation method was according to proportional anastomosis of arteries and veins, the proceed was artery and nerve → fixation of bone → anastomosis of subcutaneous vein → suturing of skin wound. In the procedure of anastomosis of arteries and nerves, the position of injured finger replantation was modified, the customary horizontal position was altered to vertical position, the severed finger was flipped to the palmar side which was taken as the rotation axis, and the anastomosis was performed through the dorsal approach. Both the proximal and distal sections was completely exposed in the position, so that the visual angle of the surgeon was changed from squint to direct vision, and which suitable for the observation and operation. Follow-up was performed in outpatient department and WeChat after surgery, and functional evaluation was recorded according to the trial standard for functional evaluation of replantation of severed finger of Hand Surgery Society of Chinese Medical Association.Results:All of 38 patients were involved, including 23 males and 15 females. The mean age was 27.3 years (ranged from 1 to 58 years). All of injured fingers were completely severed in Yamano Ⅰ zone by single finger. The causes of injuries included chainsaw injury( n=6), knife cutting injury ( n=5), crush injury ( n=19), and avulsion injury ( n=8). According to the classification of Yamano Ⅰ zone, there were 4 cases of type Ⅰ, 14 cases of type Ⅱ, 11 cases of type Ⅲ, 6 cases of type Ⅳ and 3 cases of type Ⅴ. There were 12 cases of thumb, 9 cases of index finger, 6 cases of middle finger, 7 cases of ring finger and 4 cases of little finger. The ischemia time was 1-12 h. The survival rate was 94.7% (36/38). Thirty-three patients were followed up for 6-12 months. The length and shape of the fingers were similar to the contralateral finger, the nail was intact, and the two-point discrimination was 3-5 mm. The hand function returned to normal. Conclusions:The supermicrosurgery combined with modified anterograde replantation in Yamano Ⅰ zone can be used for the replantation of fingertip with arterial and venous anastomosis. The replantation fingertip has a high survival rate, satisfactory function and appearance. It is an ideal choice for the treatment of amputated finger in Yamano Ⅰ.
