Related Experiment Video
Updated: Jun 10, 2025
Screening of Axonal Degeneration in Carpal Tunnel Syndrome Using Ultrasonography and Nerve Conduction Studies
Published on: January 11, 2019
Amyloidosis and carpal tunnel syndrome: can we predict occurrence?
François Saade1, Camille Barani2, Matthieu Guyard1
1Service de Chirurgie Orthopédique - Hôpital Saint Joseph Saint Luc, 20 Quai Claude Bernard, 69007 Lyon, France.
Introduction:
Carpal tunnel syndrome, especially when bilateral, may be associated with amyloid deposits, a precursor of systemic amyloidosis. Systemic amyloidosis affects various organs, cardiac involvement having the poorest prognosis. Diagnosis is often delayed. Current treatments are only effective in the early stages of the disease. The primary objective of our study was to evaluate the incidence of amyloidosis in patients with bilateral carpal tunnel syndrome; the secondary aim was to screen for cardiac forms.
Material And Methods:
Between 2019 and 2023, we conducted a single-center prospective observational and diagnostic study to investigate the anatomical pathology of amyloid deposits in tenosynovial samples taken during open nerve release surgery on the median nerve. The tenosynovial biopsy was sent to a specific laboratory for analysis, and typing if positive. If amyloidosis was detected, the patient was referred to a specialist for a specific work-up.
Results:
We included 54 patients, with a mean age of 67 years (range, 51-89 years): 16 men and 38 women. Sixteen analyses were positive, 12 of which were transthyretin and 4 non-typed.
Discussion/Conclusion:
Bilateral carpal tunnel syndrome was predictive of amyloidosis. As synovial biopsy during surgery is simple and rapid, it should be implemented to identify amyloidosis at an early stage. This could change prognosis, by improving survival through screening and initiation of early specific treatment.
Level Of Evidence:
IV.
