Short-Term Strength Deficit Following Zone 1 Replantations

Background Hand strength deficit following digital replantation is usually attributed to the mechanical deficiency of the replanted digit. Zone 1 replantation, however, should not be associated with any mechanical deficit, as the joint and tendon are intact. We evaluate short-term motor functions i...

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Main Authors: Si Young Roh, Woo Cheol Shim, Kyung Jin Lee, Dong Chul Lee, Jin Soo Kim, Jae-Won Yang
Format: Article
Language:English
Published: Thieme Medical Publishers, Inc. 2015-09-01
Series:Archives of Plastic Surgery
Subjects:
Online Access:http://www.thieme-connect.de/DOI/DOI?10.5999/aps.2015.42.5.614
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author Si Young Roh
Woo Cheol Shim
Kyung Jin Lee
Dong Chul Lee
Jin Soo Kim
Jae-Won Yang
author_facet Si Young Roh
Woo Cheol Shim
Kyung Jin Lee
Dong Chul Lee
Jin Soo Kim
Jae-Won Yang
author_sort Si Young Roh
collection DOAJ
description Background Hand strength deficit following digital replantation is usually attributed to the mechanical deficiency of the replanted digit. Zone 1 replantation, however, should not be associated with any mechanical deficit, as the joint and tendon are intact. We evaluate short-term motor functions in patients who have undergone single-digit zone 1 replantation. Methods A single-institution retrospective review was performed for all patients who underwent zone 1 replantation. Hand and pinch strengths were evaluated using standard dynamometers. Each set of measurements was pooled according to follow-up periods (within 1 month, 1 to 2 months, 2 to 3 months, and after 3 months). The uninjured hand was used as reference for measurements. Results The review identified 53 patients who had undergone zone 1 replantation and presented for follow-up visits. Compared to the uninjured hand, dynamometer measurements revealed significantly less strength for the hand with replanted digit at one month. The relative mean grip, pulp, and key pinch strength were 31%, 46%, and 48% of the uninjured hand. These three strength measurements gradually increased, with relative strength measurements of 59%, 70%, and 78% for 4-month follow up. Conclusions Despite the lack of joint or tendon injury, strength of the injured hand was significantly lower than that of the uninjured hand during the 4 months following replantation. Improved rehabilitation strategies are needed to diminish the short-term negative impact that an isolated zone 1 replantation has on the overall hand strength.
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spelling doaj.art-a573f2104ba6451a8d937bfac2014f842022-12-22T04:02:01ZengThieme Medical Publishers, Inc.Archives of Plastic Surgery2234-61632234-61712015-09-01420561461810.5999/aps.2015.42.5.614570Short-Term Strength Deficit Following Zone 1 ReplantationsSi Young Roh0Woo Cheol Shim1Kyung Jin Lee2Dong Chul Lee3Jin Soo Kim4Jae-Won Yang5Department of Plastic and Reconstructive Surgery, Gwangmyeong Sungae Hospital, Gwangmyeong, KoreaDepartment of Plastic and Reconstructive Surgery, Gwangmyeong Sungae Hospital, Gwangmyeong, KoreaDepartment of Plastic and Reconstructive Surgery, Gwangmyeong Sungae Hospital, Gwangmyeong, KoreaDepartment of Plastic and Reconstructive Surgery, Gwangmyeong Sungae Hospital, Gwangmyeong, KoreaDepartment of Plastic and Reconstructive Surgery, Gwangmyeong Sungae Hospital, Gwangmyeong, KoreaGangnam Jaejun Plastic Clinic for Hand and Plastic Surgery, Pyeongtaek, KoreaBackground Hand strength deficit following digital replantation is usually attributed to the mechanical deficiency of the replanted digit. Zone 1 replantation, however, should not be associated with any mechanical deficit, as the joint and tendon are intact. We evaluate short-term motor functions in patients who have undergone single-digit zone 1 replantation. Methods A single-institution retrospective review was performed for all patients who underwent zone 1 replantation. Hand and pinch strengths were evaluated using standard dynamometers. Each set of measurements was pooled according to follow-up periods (within 1 month, 1 to 2 months, 2 to 3 months, and after 3 months). The uninjured hand was used as reference for measurements. Results The review identified 53 patients who had undergone zone 1 replantation and presented for follow-up visits. Compared to the uninjured hand, dynamometer measurements revealed significantly less strength for the hand with replanted digit at one month. The relative mean grip, pulp, and key pinch strength were 31%, 46%, and 48% of the uninjured hand. These three strength measurements gradually increased, with relative strength measurements of 59%, 70%, and 78% for 4-month follow up. Conclusions Despite the lack of joint or tendon injury, strength of the injured hand was significantly lower than that of the uninjured hand during the 4 months following replantation. Improved rehabilitation strategies are needed to diminish the short-term negative impact that an isolated zone 1 replantation has on the overall hand strength.http://www.thieme-connect.de/DOI/DOI?10.5999/aps.2015.42.5.614hand strengthpinch strengthreplantationrange of motion, articular
spellingShingle Si Young Roh
Woo Cheol Shim
Kyung Jin Lee
Dong Chul Lee
Jin Soo Kim
Jae-Won Yang
Short-Term Strength Deficit Following Zone 1 Replantations
Archives of Plastic Surgery
hand strength
pinch strength
replantation
range of motion, articular
title Short-Term Strength Deficit Following Zone 1 Replantations
title_full Short-Term Strength Deficit Following Zone 1 Replantations
title_fullStr Short-Term Strength Deficit Following Zone 1 Replantations
title_full_unstemmed Short-Term Strength Deficit Following Zone 1 Replantations
title_short Short-Term Strength Deficit Following Zone 1 Replantations
title_sort short term strength deficit following zone 1 replantations
topic hand strength
pinch strength
replantation
range of motion, articular
url http://www.thieme-connect.de/DOI/DOI?10.5999/aps.2015.42.5.614
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