Related Experiment Video
Updated: May 16, 2025

Screening of Axonal Degeneration in Carpal Tunnel Syndrome Using Ultrasonography and Nerve Conduction Studies
Published on: January 11, 2019
Comparative Analysis of Ultrasound and Surgical Findings in Anatomical Variations of de Quervain's Disease
Young Seok Lee1, Wan-Sun Choi2, Seung Hun Baek1
1Department of Orthopedic Surgery, Hanyang University College of Medicine, Seoul, Korea.
Background:
This study compares ultrasound and surgical findings of anatomical variations in de Quervain's disease.
Methods:
Seventy-four wrists from patients with unilateral de Quervain's disease were examined through ultrasonography and surgery. Presence of intracompartment septum, abductor pollicis longus (APL) slips, and selective stenosis were verified by both methods. Two orthopedic surgeons assessed ultrasound findings for intra- and interobserver reliability.
Results:
Amongst 74 participants (43 women and 31 men), 60.8% had a complete septum, 31.1% had an incomplete septum, and 8.1% had no septum; 70.3% had multi-slip APL and 66.2% had extensor pollicis brevis stenosis. Surgical and ultrasonographic findings displayed a high level of sensitivity and specificity. Intraobserver reliability was high, and interobserver reliability was substantial.
Conclusions:
The study confirms ultrasonography's reliability in identifying anatomical variations in de Quervain's disease, with high sensitivity, specificity, and substantial intra- and interobserver reliability, emphasizing its usefulness in preoperative assessment and planning.

