Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/5312
Title: Biomechanical evaluation of flexor tendon function after hamate hook excision
Authors: Demirkan, Fahir
Calandruccio, J.H.
DiAngelo, D.
Keywords: Excision
Excursion
Flexor tendon force
Hamate hook
Ulnar shift
article
biomechanics
cadaver
evaluation
excision
flexor tendon
force
forearm
functional assessment
grip strength
human
priority journal
wrist fracture
Publisher: W.B. Saunders
Abstract: Purpose: Hamate hook fractures are uncommon injuries for which treatment is controversial. Excision of the hamate hook is considered to be the preferred method of treatment but the effects of hamate excision are not clearly delineated. The purpose of this study was to determine what effect, if any, excision of the hamate has on flexor tendon function. Method: The biomechanical effects of hamate hook excision on flexor tendon function were studied in fresh cadaveric forearm specimens with wrists fixed in 3 positions (neutral, 30° extension, 30° extension with 30° ulnar deviation). Flexor tendon force, flexor tendon excursion, and flexor tendon shift were evaluated. Results: Flexor tendon force decreased after hamate hook excision (11% in neutral, 14% in 30° extension, and 15% in 30° extension with 30° ulnar deviation). The flexor profundus tendons had a 7to 11-mm increase in proximal tendon excursion after hamate hook excision depending on the position of the wrist, and the flexor profundus tendons of the small finger shifted 4 to 5 mm in ulnar direction. Conclusions: The hamate hook provides some biomechanical advantage for flexor tendon function and cadaveric changes in tendon force after its excision suggest that power grip may be decreased after hamate hook excision. Copyright © 2003 by the American Society for Surgery of the Hand.
URI: https://hdl.handle.net/11499/5312
https://doi.org/10.1053/jhsu.2003.50005
ISSN: 0363-5023
Appears in Collections:PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Tıp Fakültesi Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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