NDLI: A biomechanical analysis of the healthy and the pathological index finger during pinch function

Content Provider	IEEE Xplore Digital Library
Author	Sghaier, A.B. Romdhane, L. Ouezdou, F.B.
Copyright Year	2008
Description	Author affiliation: Lab. of Mech. Eng., Univ. of Monastir, Monastir (Sghaier, A.B.)
Abstract	In this work, a biomechanical model of the index finger is used to get an insight into the mechanism that controls the index musculoskeletal system. Our simulation is intended to determine how different muscles groups are acting on different joints in producing adequate static maximal fingertip forces and moments. The model is then modified to simulate injured fingers with extensor mechanism loss. We investigated two common pathologies that affect the extensor mechanism, i.e., Mallet and Boutonniere lacerations. We used a biomechanical model based on robotic principles and an optimization technique to solve the muscular redundant problem over the 3 joints of the forefinger system. The role of each tendon was quantified in the case of the healthy finger as well as in the pathological one. We showed, in particular, that the loss of strength in the finger can be regained by an increase of the tension in the interosseous tendons; however, this increase can be a source of instability in the pinch task.
Starting Page	1784
Ending Page	1789
File Size	309182
Page Count	6
File Format	PDF
ISBN	9781424420575
DOI	10.1109/IROS.2008.4650900
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-22
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fingers Force Tendons Joints Indexes Biological system modeling Mathematical model
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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