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Trigger finger and thumb, secondary to amyloidosis
Plastic and Reconstructive Surgery
|January 1, 1980
Summary
Amyloid infiltration of flexor tendons caused triggering in the digital flexors. This condition affected both the fibrous sheath entrance and sublimis tendon decussation, impacting hand function.
Area of Science:
- Rheumatology
- Orthopedics
- Pathology
Background:
- Amyloidosis is a rare condition characterized by the abnormal deposition of amyloid proteins in various tissues.
- Flexor tendon and digital sheath involvement can lead to significant functional impairment in the hand.
Observation:
- A case study detailing amyloid infiltration within the flexor tendons and fibrous digital flexor sheaths.
- The infiltration was observed to cause triggering phenomena at specific anatomical locations.
Findings:
- Amyloid deposition in the flexor tendons and fibrous sheaths of the digital flexors was the primary cause of triggering.
- Triggering occurred at the entrance to the fibrous sheaths and the decussation of the sublimis tendons.
Implications:
- This case highlights a novel presentation of amyloidosis affecting the hand.
- Understanding this mechanism is crucial for accurate diagnosis and targeted treatment of amyloid-related hand dysfunction.
- Further research may elucidate the specific factors leading to flexor tendon and sheath amyloidosis.