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dc.contributor.authorKelly, Een_NZ
dc.contributor.authorEllis, Ren_NZ
dc.contributor.authorHing, Wen_NZ
dc.date.accessioned2022-09-01T02:28:24Z
dc.date.available2022-09-01T02:28:24Z
dc.date.copyright2018-02-01en_NZ
dc.identifier.citationJournal of Hand Therapy, Volume 32, Issue 3, July–September 2019, Pages 375-381.
dc.identifier.issn0894-1130en_NZ
dc.identifier.urihttp://hdl.handle.net/10292/15416
dc.description.abstractStudy Design Cross-sectional, observational study. Introduction There is little reported on the in vivo mechanics and behavior of extensor pollicis brevis (EPB) in relation to wrist position. Wrist position is known to significantly influence tendon excursion and therefore function of the digits. Ultrasound imaging (USI) can be used to assess in vivo tendon behavior and excursion. An improved knowledge of the excursion of the EPB tendon is important in understanding normal tendon mechanics and potentially pathological tendon disorders such as de Quervains tenosynovitis. Purpose of the Study To assess the reliability of using USI to measure EPB tendon excursion and to quantify EPB tendon excursion in 3 wrist positions. Methods USI with speckle-tracking analysis were utilized to assess 49 normal EPB tendons (25 subjects). Tendon excursion was measured in wrist flexion (45°), wrist neutral and wrist extension (45°) on 2 different occasions. Results The within- and between-session reliability of using USI to quantify EPB tendon excursion was “excellent” and “high,” respectively. Wrist position had a significant influence on EPB tendon excursion (P ≤ .05). EPB excursion in the neutral wrist position was statistically greater than the other 2 positions (P < .05). Discussion EPB tendon excursion has been shown to be dependent on the wrist positions of flexion and extension. The measures are notably lower than those found in cadaver studies; however, they follow a similar pattern with greatest excursion occurring in the neutral wrist position and least in flexion. This information is useful for EPB tendon rehabilitation and in consideration of biomechanics and pathogenesis of disorders that affect EPB tendon. Conclusion In vivo EPB tendon excursion measures have been quantified, and wrist position has been found to have an influence on excursion. USI with speckle-tracking analysis are considered to be reliable methods for measuring EPB tendon excursion.
dc.publisherElsevieren_NZ
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0894113017302430en_NZ
dc.rights(C) 2018 Hanley & Belfus, an imprint of Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
dc.subjectEPB; Tendon excursion; Wrist position; Ultrasound imaging
dc.titleUltrasound Assessment of Extensor Pollicis Brevis Tendon Excursion for Different Wrist Positions in Healthy Peopleen_NZ
dc.typeJournal Article
dc.rights.accessrightsOpenAccessen_NZ
dc.identifier.doi10.1016/j.jht.2017.12.004en_NZ
aut.relation.endpage381
aut.relation.issue3en_NZ
aut.relation.startpage375
aut.relation.volume32en_NZ
pubs.elements-id292213
aut.relation.journalJournal of Hand Therapyen_NZ


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