Biomaterial Database

[Biomechanical study of flexor tendon and finger motor function]. 2009

Zhengzhi Zhang, and Yan Xiong

Department of Central Laboratory, Department of Basic Medicine, The Third Military Medical University, Chongqing 400038, China. zhizzcq@yahoo.com.cn

In order to provide data for clinical approach to Hand-functional rehabilitation, we conducted this study on the relationships among flexor tendon load, tendon excursion and finger joint angle. Using the dynamic biomechanical test, three-dimension motion image analysis and computer analysis, we investigated eight intact normal male cadavers, hand mechanics of flexor tendon load, tendon excursion and joint angle. The results showed that, at the time when the top of finger touched the palm, the mean tendon load of flexor digitorum profundus(FDP) tendon was 7.9 N, the mean tendon excursion 43.4 mm, the mean total range of motion 237.0 degree. When the top of finger touched the palm, the mean tendon load of flexor digitorum superficial(FDS) tendon was 8.9 N, the mean tendon excursion 38.5 mm, and the mean total range of motion 206.3 degree. These findings demonstrated that there are some curvilinear relationships between flexor tendon load, tendon excursion and finger joint motion. When we flex our fists, the proximal interphalangeal(PIP) joint plays an important role in both FDP and FDS tendon.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009119	Muscle Contraction	A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.	Inotropism,Muscular Contraction,Contraction, Muscle,Contraction, Muscular,Contractions, Muscle,Contractions, Muscular,Inotropisms,Muscle Contractions,Muscular Contractions
D002102	Cadaver	A dead body, usually a human body.	Corpse,Cadavers,Corpses
D005384	Finger Joint	The articulation between the head of one phalanx and the base of the one distal to it, in each finger.	Interphalangeal Joint of Hand,Interphalangeal Joint of Finger,Finger Interphalangeal Joint,Finger Interphalangeal Joints,Finger Joints,Hand Interphalangeal Joint,Hand Interphalangeal Joints,Joint, Finger,Joints, Finger
D005385	Fingers	Four or five slender jointed digits in humans and primates, attached to each HAND.	Finger
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001696	Biomechanical Phenomena	The properties, processes, and behavior of biological systems under the action of mechanical forces.	Biomechanics,Kinematics,Biomechanic Phenomena,Mechanobiological Phenomena,Biomechanic,Biomechanic Phenomenas,Phenomena, Biomechanic,Phenomena, Biomechanical,Phenomena, Mechanobiological,Phenomenas, Biomechanic
D013710	Tendons	Fibrous bands or cords of CONNECTIVE TISSUE at the ends of SKELETAL MUSCLE FIBERS that serve to attach the MUSCLES to bones and other structures.	Endotenon,Epotenon,Tendons, Para-Articular,Tendons, Paraarticular,Endotenons,Epotenons,Para-Articular Tendon,Para-Articular Tendons,Paraarticular Tendon,Paraarticular Tendons,Tendon,Tendon, Para-Articular,Tendon, Paraarticular,Tendons, Para Articular
D016059	Range of Motion, Articular	The distance and direction to which a bone joint can be extended. Range of motion is a function of the condition of the joints, muscles, and connective tissues involved. Joint flexibility can be improved through appropriate MUSCLE STRETCHING EXERCISES.	Passive Range of Motion,Joint Flexibility,Joint Range of Motion,Range of Motion,Flexibility, Joint
D018482	Muscle, Skeletal	A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.	Anterior Tibial Muscle,Gastrocnemius Muscle,Muscle, Voluntary,Plantaris Muscle,Skeletal Muscle,Soleus Muscle,Muscle, Anterior Tibial,Muscle, Gastrocnemius,Muscle, Plantaris,Muscle, Soleus,Muscles, Skeletal,Muscles, Voluntary,Skeletal Muscles,Tibial Muscle, Anterior,Voluntary Muscle,Voluntary Muscles