Effect of length-width ratio on partial necrosis in distally based sural neurofasciocutaneous flap: 157 cases.
10.3969/j.issn.1672-7347.2010.07.018
- Author:
Zhonggen DONG
1
;
Jianwei WEI
;
Lihong LIU
;
Shunhong LUO
;
Miao HE
;
Zhengbing ZHOU
;
Xiangwu DENG
;
Yang YANG
Author Information
1. Department of Orthopeadics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
- Publication Type:Journal Article
- MeSH:
Adolescent;
Adult;
Aged;
Child;
Child, Preschool;
Female;
Foot Injuries;
surgery;
Humans;
Leg Injuries;
surgery;
Male;
Middle Aged;
Necrosis;
Reconstructive Surgical Procedures;
methods;
Retrospective Studies;
Skin Transplantation;
methods;
Soft Tissue Injuries;
surgery;
Surgical Flaps;
blood supply;
innervation;
pathology;
Young Adult
- From:
Journal of Central South University(Medical Sciences)
2010;35(7):754-759
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To explore the effect of length-width ratio (LWR)on partial necrosis in distally based sural neurofasciocutaneous flap.
METHODS:Clinical data and operative pictures of 157 distally based sural neurofasciocutaneous flaps were reviewed and analysed. LWR of the flaps ranged from 2.83:1 to 7.14:1. Based on the LWR of the flaps, the flaps were divided into 5 groups: Group A(LWR≤3:1), Group B(3:1
RESULTS:Of the 157 flaps, 125 survived uneventfully, 8 had distal epidermical necrosis, wound dehiscence occurred in 6 flaps, 18 flaps(11.5%) had distal partial necrosis. Partial necrosis occurred in none of the 6 flaps in Group A(0%), 4 of 26 flaps in Group B(12.5%), 2 of 56 flaps in Group C (3.6%), 8 of 50 flaps in Group D (16.0%), and 4 of 19 flaps in Group E(21.5%). There were no statistical differences in partial necrosis ratio between Group A and B, Group B and C, Group D and E(P>0.05). Partial necrosis ratio was higher in Group D than that in Group C(P<0.05). It was lower in the LWR<5:1 group (Group A+Group B+Group C) (6.8%, 6/88) than that in the LWR≥5:1 group (Group D+Group E) (17.4%, 12/69) (P<0.05).
CONCLUSION:When LWR of the flap is less than 5:1, probability of partial necrosis occurring in distally based sural neurofasciocutaneous flaps is low, and the flap can survive more reliably. The maximum LWR of the surrival flaps can reach 6-7:1.
