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 in...
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Published in | Archives of plastic surgery Vol. 42; no. 5; pp. 614 - 618 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English Korean |
Published |
333 Seventh Avenue, 18th Floor, New York, NY 10001, USA
Thieme Medical Publishers, Inc
01.09.2015
The Korean Society of Plastic and Reconstructive Surgeons 대한성형외과학회 |
Subjects | |
Online Access | Get full text |
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Summary: | 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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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 KISTI1.1003/JNL.JAKO201531360573293 G704-000758.2015.42.5.031 |
ISSN: | 2234-6163 2234-6171 |
DOI: | 10.5999/aps.2015.42.5.614 |