Tenodesis grasp

Tenodesis grasp is a functional grasp pattern that is often used by individuals with spinal cord injury at the C6 or C7 level. This grasp pattern is achieved through the use of wrist extension to create finger flexion and wrist flexion to create finger extension.

Mechanism

The tenodesis grasp works on the principle of tenodesis action. When the wrist is extended, the fingers and thumb flex (close) due to the increased tension on the finger flexor tendons. Conversely, when the wrist is flexed, the fingers and thumb extend (open) due to the decreased tension on the finger flexor tendons. This action allows individuals with certain types of spinal cord injuries to grasp and release objects.

Use in Rehabilitation

In rehabilitation, the tenodesis grasp is often used to improve functional independence in individuals with spinal cord injuries. Occupational therapists may train patients to use this grasp pattern to perform activities of daily living, such as eating, dressing, and writing.

Limitations

While the tenodesis grasp can improve functional independence, it has some limitations. The strength of the grasp is limited by the strength of the wrist extensors. Additionally, the grasp is less precise than a normal hand grasp and may not be suitable for all tasks.

See Also

• Spinal cord injury
• Rehabilitation
• Occupational therapy
• Tenodesis

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