When a Positive Finkelstein Test Isn't De Quervain
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A patient walks in with burning pain and numbness over the back of the thumb and index finger, no weakness, and a watch or bracelet that sits right over the sore spot.
What’s the diagnosis? According to a CFP journal article from the July/August 2026 issue, it’s something you need to know.
This is Wartenberg syndrome, also called cheiralgia paresthetica: a compression neuropathy of the radial nerve's superficial sensory branch, not a tendon problem at all.
The exam findings that clinch it won't show up with active movement at all. Look for pain and a Tinel sign at the nerve while the thumb and wrist are completely passive, not stretched against resistance.
The Finkelstein test can look deceptively similar because both conditions hurt in roughly the same spot, but de Quervain syndrome needs active tension on the tendons to provoke pain, while Wartenberg syndrome fires with the joints completely relaxed. Trauma, tumours, adjacent muscle compression, or simple external pressure from jewellery can all trigger it.
WARTENBERG? CHECK FOR COMPRESSION HERE
• Wrist-level pressure from watches or bracelets (that’s why you should WATCH out for it!)
• Adjacent tumours or soft-tissue masses
• Compression by the brachioradialis muscle
• Direct trauma to the nerve
Up to 35% of your CCFP exam SAMP questions will be about management. How do we know this? In July 2026, the CFPC released their SAMPs Blueprint which tells us how many questions on the exam are from each category (see our short video on the SAMP Blueprint). So let’s take a closer look at management of Wartenberg syndrome.
Initial management is activity modification plus oral or topical NSAIDs, with corticosteroid injection at the point of maximal tenderness reserved for patients who don't improve. When the nerve is compressed by the brachioradialis muscle itself, splinting the wrist and elbow to limit that muscle's action can help.
Starting this week, test Tinel's sign with the wrist and thumb passive before you commit to a de Quervain diagnosis on pain location alone. If you take one thing from this post: a positive Finkelstein-like test with the joint relaxed points to nerve compression, not tendinitis.
Exam tip: MCQ SAMP (Select-Answer Management Problem) stems can hand you a positive Finkelstein-style test to steer you toward de Quervain syndrome, but if the stem specifies the thumb and wrist are relaxed when the pain fires, that's Wartenberg syndrome testing your ability to separate nerve pain from tendon pain. And your examiner read it in the CFP journal.
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References
Radial-sided wrist pain: First-line diagnostic approach and management of selected common pathologies. Canadian Family Physician. 2026. https://www.cfp.ca/content/72/7-8/458
Wartenberg's Syndrome. Compressive Neuropathies of the Upper Extremity: A Comprehensive Guide to Treatment. 2020. https://doi.org/10.1007/978-3-030-37289-7_23
College of Family Physicians of Canada. SAMP Examination Blueprint and Content Specifications. Mississauga, ON: College of Family Physicians of Canada; 2026.
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