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Assessment of survival rates compared according to the Tamai and Yamano classifications in fingertip replantations.

Abstract：

BACKGROUND:The fingertip is the most frequently injured and amputated segment of the hand. There are controversies about defining clear indications for microsurgical replantation. Many classification systems have been proposed to solve this problem. No previous study has simultaneously correlated different classification systems with replant survival rate. The aim of the study is to compare the outcomes of fingertip replantations according to Tamai and Yamano classifications. MATERIALS AND METHODS:34 consecutive patients who underwent fingertip replantation between 2007 and 2014 were retrospectively reviewed with respect to the Tamai and Yamano classifications. The medical charts from record room were reviewed. The mean age of the patients was 36.2 years. There were 30 men and 4 women. All the injuries were complete amputations. Of the 34 fingertip amputations, 19 were in Tamai zone 2 and 15 were in Tamai zone 1. When all the amputations were grouped in reference to the Yamano classification, 6 were type 1 guillotine, 8 were type 2 crush and 20 were type 3 crush avulsions. RESULTS:Of the 34 fingertips, 26 (76.4%) survived. Ten (66.6%) of 15 digits replanted in Tamai zone 1 and 16 (84.2%) of 19 digits replanted in Tamai zone 2 survived. There were no replantation failures in Yamano type 1 injuries (100%) and only two failed in Yamano type 2 (75%). Replantation was successful in 14 of 20 Yamano type 3 injuries, but six failed (70%). The percentage of success rates was the least in the hybridized groups of Tamai zone 1-Yamano type 2 and Tamai zone 1-Yamano type 3. Although clinically distinct, the survival rates between the groups were not statistically significantly different. CONCLUSIONS:The level and mechanism of injury play a decisive role in the success of fingertip replantation. Success rate increases in proximal fingertip amputations without crush injury.

journal_name

Indian J Orthop

journal_title

Indian journal of orthopaedics

authors

Dadaci M,Ince B,Altuntas Z,Bitik O,Kamburoglu HO,Uzun H

doi

10.4103/0019-5413.185602

subject

Has Abstract

pub_date

2016-07-01 00:00:00

pages

384-9

issue

eissn

0019-5413

issn

1998-3727

pii

IJOrtho-50-384

journal_volume

pub_type

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Assessment of survival rates compared according to the Tamai and Yamano classifications in fingertip replantations.