Diagnostic Approaches for Carpal Tunnel Syndrome and Wrist Tenosynovitis

Physical Examination Techniques

The American College of Rheumatology recommends that patients be seated with their hand positioned on the thigh or examination table for optimal assessment, and dynamic examination with active finger flexion and extension should be performed to assess nerve mobility and symptom reproduction 1, 2
For wrist tenosynovitis, physical examination should focus on identifying tendon-specific pain with resisted motion and palpable swelling along tendon sheaths, with dynamic assessment during active finger flexion and extension being essential for diagnosis 1, 2

The American College of Radiology suggests that ultrasound is the preferred initial imaging modality for suspected tenosynovitis due to superficial tendon location and ability to perform dynamic assessment, capable of diagnosing tendinopathy, tendon tears, intersection syndrome, stenosing tenosynovitis, and pulley injuries 3, 4, 5, 6
MRI without IV contrast can diagnose the same tendon abnormalities with superior soft tissue contrast resolution, though postcontrast images improve detection of tenosynovitis 3, 4, 5, 6

Intersection syndrome can be diagnosed by palpating for tenderness and crepitus approximately 4-6 cm proximal to the wrist where the first dorsal compartment tendons cross the second compartment 3, 4
Tendon pathology assessment should include evaluation for tendinopathy, partial or complete tendon tears, stenosing tenosynovitis, and pulley injuries through resisted motion testing 3, 4, 5, 6