Biomechanical changes of cadaveric finger flexion: the effect of wrist position and of the transverse carpal ligament and palmar and forearm fasciae

The Journal of Hand Surgery
H J KangD P Mass

Abstract

This study was designed to investigate whether the position of the wrist or sectioning of the transverse carpal ligament (TCL), as well as the palmar fascia and forearm fascia, modifies the biomechanical behavior of the finger flexion, as defined by changes of excursion, load (force), and work of the flexor tendons. The parameters were measured in fresh-frozen cadaver hands with the wrist in 30 degree extension, neutral, and 30 degree flexion, before and after division of the TCL. Having the wrist in extension improved excursion efficiency, whereas flexing the wrist produced the opposite effect, with a 16% decrease in excursion efficiency after division of the TCL. Change in excursion efficiency between the intact and cut TCL was 8% in the flexed position, 5% in the neutral position, and 0.3% in the extended position. Change in load efficiency between intact and cut TCL was 11% in the flexed position, 6% in the neutral position, and 0% in the extended position. Change in the work efficiency between intact and cut TCL groups was noted most with the wrist in the flexed position (13%), compared to a small change (3%) in neutral wrist position and no change in wrist extension. A significant decrease in the excursion efficiency of t...Continue Reading

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Citations

Oct 28, 2008·Applied Ergonomics·Donald O DusenberrySteven J Dellorusso
Nov 23, 2010·Chirurgie de la main·C SavorninG Hoël
Feb 4, 2003·The Journal of Hand Surgery·Fahir DemirkanDenis Diangelo
Feb 15, 2019·The Journal of Hand Surgery Asian-Pacific Volume·Kenji GotoKazuo Kaneko
Mar 4, 2006·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Katarzyna KursaDavid Rempel
Jun 1, 2019·Clinical Orthopaedics and Related Research·Johnny T Nelson

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