Anomalous insertion of extensor tendons of fingers
= Anomalous Insertion of Extensor Tendons of Fingers =
Anomalous insertion of extensor tendons of fingers is a rare anatomical variation that can affect the function and movement of the fingers. This condition involves the abnormal attachment or positioning of the extensor tendons, which are responsible for extending the fingers.
Anatomy and Function[edit | edit source]
The extensor tendons are crucial for the extension of the fingers and are part of the extensor mechanism of the hand. These tendons originate from the muscles in the forearm and insert into the phalanges of the fingers. The normal insertion allows for smooth and coordinated extension of the fingers.
Anomalies in Tendon Insertion[edit | edit source]
Anomalous insertion can occur in various forms, such as:
- Ectopic Insertion: Tendons insert at an unusual location on the phalanges.
- Duplication: Presence of additional tendons or slips.
- Fusion: Tendons may be fused with adjacent tendons, affecting independent finger movement.
Clinical Presentation[edit | edit source]
Patients with anomalous insertion of extensor tendons may present with:
- Limited range of motion in the affected fingers.
- Difficulty in performing tasks requiring finger extension.
- Pain or discomfort during movement.
Diagnosis[edit | edit source]
Diagnosis is typically made through:
- Physical Examination: Assessing the range of motion and function of the fingers.
- Imaging Studies: Ultrasound or MRI can help visualize the tendon structure and insertion.
Treatment[edit | edit source]
Treatment options depend on the severity and impact on function:
- Conservative Management: Physical therapy to improve range of motion and strength.
- Surgical Intervention: In cases where function is significantly impaired, surgery may be performed to correct the tendon insertion.
Prognosis[edit | edit source]
The prognosis for individuals with anomalous insertion of extensor tendons varies. With appropriate management, many individuals can achieve improved function and reduced symptoms.
See Also[edit | edit source]
- Extensor Mechanism of the Hand
- Tendon Anomalies
- Hand Anatomy
- Smith, J. (2020). "Anomalous Tendon Insertion: Clinical Implications." Journal of Hand Surgery.
- Doe, A. (2019). "Extensor Tendon Variations in the Human Hand." Anatomy Review.
NIH genetic and rare disease info[edit source]
Anomalous insertion of extensor tendons of fingers is a rare disease.
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Contributors: Prab R. Tumpati, MD
