Tenodesis grasp: Difference between revisions
CSV import |
|||
| (3 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
''' | {{Short description|A passive hand grasp mechanism}} | ||
== Tenodesis grasp == | |||
[[File:Wrist_related_tenodesis_effect,_second_step.JPG|thumb|right|Illustration of the wrist position in tenodesis grasp]] | |||
The '''tenodesis grasp''' is a passive hand grasp mechanism that occurs due to the natural biomechanics of the [[wrist]] and [[finger]] tendons. It is particularly significant in individuals with certain levels of [[spinal cord injury]] where active finger flexion is impaired. | |||
== Mechanism == | == Mechanism == | ||
The tenodesis grasp | The tenodesis grasp relies on the anatomical relationship between the [[extensor]] and [[flexor]] tendons of the hand. When the wrist is extended, the fingers naturally flex due to the tension in the flexor tendons. Conversely, when the wrist is flexed, the fingers tend to extend. This phenomenon is due to the passive tension in the tendons and is utilized in rehabilitation to enable grasping in individuals with limited hand function. | ||
== | == Clinical significance == | ||
The tenodesis grasp is particularly important for individuals with [[tetraplegia]] resulting from cervical [[spinal cord injury]]. These individuals often lack voluntary control over their finger muscles but can still achieve a functional grasp by using wrist extension to passively flex the fingers. This allows them to hold objects and perform daily activities with greater independence. | |||
== Rehabilitation == | |||
In rehabilitation, therapists often teach patients how to use the tenodesis grasp effectively. This involves strengthening the wrist extensors and training the patient to use wrist movements to control finger position. Adaptive devices and splints may also be used to enhance the effectiveness of the tenodesis grasp. | |||
== Related pages == | |||
== | |||
* [[Spinal cord injury]] | * [[Spinal cord injury]] | ||
* [[Tetraplegia]] | |||
* [[Rehabilitation]] | * [[Rehabilitation]] | ||
* [[ | * [[Biomechanics]] | ||
[[Category: | [[Category:Hand]] | ||
[[Category:Rehabilitation]] | [[Category:Rehabilitation medicine]] | ||
[[Category:Spinal cord injury]] | [[Category:Spinal cord injury]] | ||
Latest revision as of 14:47, 22 February 2025
A passive hand grasp mechanism
Tenodesis grasp[edit]
The tenodesis grasp is a passive hand grasp mechanism that occurs due to the natural biomechanics of the wrist and finger tendons. It is particularly significant in individuals with certain levels of spinal cord injury where active finger flexion is impaired.
Mechanism[edit]
The tenodesis grasp relies on the anatomical relationship between the extensor and flexor tendons of the hand. When the wrist is extended, the fingers naturally flex due to the tension in the flexor tendons. Conversely, when the wrist is flexed, the fingers tend to extend. This phenomenon is due to the passive tension in the tendons and is utilized in rehabilitation to enable grasping in individuals with limited hand function.
Clinical significance[edit]
The tenodesis grasp is particularly important for individuals with tetraplegia resulting from cervical spinal cord injury. These individuals often lack voluntary control over their finger muscles but can still achieve a functional grasp by using wrist extension to passively flex the fingers. This allows them to hold objects and perform daily activities with greater independence.
Rehabilitation[edit]
In rehabilitation, therapists often teach patients how to use the tenodesis grasp effectively. This involves strengthening the wrist extensors and training the patient to use wrist movements to control finger position. Adaptive devices and splints may also be used to enhance the effectiveness of the tenodesis grasp.
