De Quervain's Tenosynovitis
De Quervain's tenosynovitis is a painful condition affecting the tendons on the thumb side of the wrist. It develops because of overload and narrowing of the first dorsal extensor compartment, through which abductor pollicis longus (APL) and extensor pollicis brevis (EPB) pass. This reduces tendon gliding within the tendon sheaths and can cause local inflammation, thickening and, in some cases, stenosis of the compartment¹,²,³. The main symptom is pain on the radial side of the wrist, aggravated by thumb abduction, forceful gripping and ulnar deviation of the wrist.
Etiology and Risk Factors
The most common cause is chronic overload of the thumb and wrist through repetitive gripping, twisting or lifting movements²,³. Typical activities include playing the piano, carpentry, fly fishing, computer use and other repetitive hand tasks. New mothers are a particularly susceptible group because they repeatedly lift the infant with the thumbs in radial abduction while the wrists alternate between ulnar and radial deviation.
The condition is therefore classified as a functional overuse injury. In many cases, the underlying pathophysiology appears to involve degenerative changes rather than classic inflammation—often described as tendinosis—with myxoid degeneration and fibrotic changes in the tendon sheath⁴,⁵. This differs from acute synovial inflammation and is relevant when selecting treatment strategies.
Anatomy
The two affected tendons—APL and EPB—originate from the dorsal surfaces of the radius, ulna and interosseous membrane. They pass through a fibro-osseous tunnel on the radial side of the wrist, bordered by the radial styloid process and the overlying extensor retinaculum⁶. Space within this first dorsal compartment is limited, so even small amounts of swelling can cause substantial friction and pain. Thickening of the tendon sheath may mechanically restrict the tendons, reducing movement and increasing pain.
Epidemiology
Prevalence is estimated at approximately 0.5% in men and 1.3% in women, with the highest incidence among people aged 40–50 years⁷. It is also seen in patients with a history of lateral or medial epicondylitis, and bilateral involvement is not uncommon in new mothers⁴. In industrial occupations involving frequent gripping or wrist movements, point prevalence has been reported as high as 8% when both pain and a positive Finkelstein test are present².
Differential Diagnoses
Several conditions should be considered when assessing radial-sided wrist pain:
Osteoarthritis of the first carpometacarpal (CMC) joint
Trigger thumb
Wartenberg syndrome (superficial radial nerve involvement)
Scaphoid fracture or radial styloid fracture
Intersection syndrome
Extensor tendon rupture
Clinical Presentation
Typical symptoms include a constant aching, burning or pulling pain on the thumb side of the wrist, localized around the base of the thumb and radial styloid. Pain may radiate proximally into the forearm and is aggravated by activities requiring gripping, lifting or wrist rotation—for example opening a jar lid⁸. Many patients report worsening symptoms at night.
Examination
Palpation: Local tenderness over the first dorsal extensor compartment and radial styloid²
Swelling: May be visible and palpable in the anatomical snuffbox
Movement: Reduced active and passive thumb CMC abduction
Thickening and crepitus: Palpable thickening of the tendon sheath, sometimes with crepitus during active movement⁹
Sensation and strength: In some cases, patients report weakness and paresthesia in the hand³
Finkelstein Test:
The patient makes a fist with the thumb enclosed by the fingers
The wrist is then slowly moved passively into ulnar deviation
A positive test reproduces sharp pain along the radial side of the wrist⁴
Diagnostic Investigations
Most cases can be diagnosed clinically. If the diagnosis is uncertain or another pathology such as osteoarthritis or fracture is suspected, the following may be considered:
Ultrasound: May show tendon thickening and synovial fluid
MRI: May show inflammation or degeneration within the tendon sheaths
X-ray: Used to exclude osteoarthritis or bony pathology
Treatment of De Quervain's Tenosynovitis
Treatment is often divided into three levels or stages depending on severity, duration and response to conservative measures. Most patients respond well to non-surgical treatment, but persistent cases may require injection therapy or surgery⁵.
Stage 1: Conservative Treatment
The goals of conservative management are to reduce pain, limit local irritation and prevent further mechanical stress to the tendon sheaths. Common measures include:
Patient education: The patient should be informed about movements that aggravate symptoms, typically repeated lifting, gripping and ulnar deviation of the wrist⁵.
Activity modification: Temporary reduction of provocative activities is recommended to decrease mechanical loading of APL and EPB.
NSAIDs: Systemic anti-inflammatory medication may be used during the acute phase for symptom relief.
Cold/heat therapy: Ice may be used to reduce acute symptoms, while heat may help relieve muscular tension.
Orthosis: A forearm-based thumb-spica orthosis that immobilizes the thumb and wrist may be effective. The orthosis is intended to reduce thumb motion and limit ulnar deviation⁵.
There is disagreement in the literature regarding duration of orthosis use; some recommend continuous wear for 4–6 weeks, whereas others recommend use only when symptoms are present⁵,¹¹.
Weiss et al. reported 19% improvement with orthosis alone and 57% improvement when the orthosis was combined with NSAIDs¹².
Physiotherapy and occupational therapy: A multimodal program including progressive strengthening, joint mobilization and neural mobilization may be appropriate, particularly in later phases.
Therapeutic ultrasound: May be used for symptom relief, although current evidence is limited and studies show substantial methodological variation¹³,¹⁴.
Stage 2: Corticosteroid Injection
If conservative treatment has not provided sufficient improvement after 4–6 weeks, or when pain is severe, corticosteroid injection may be considered. One or two injections have documented clinical benefit, particularly when combined with orthosis use⁷,¹³,¹⁷.
Ultrasound-guided injection: Studies have shown greater placement accuracy and potentially better clinical outcomes with ultrasound guidance compared with landmark-guided injection¹⁵,¹⁶.
Effect: When administered correctly, many patients experience substantial symptom relief within a short period. If two injections fail, surgery may be considered.
Stage 3: Surgery
Surgery may be considered for persistent symptoms after unsuccessful conservative management. The procedure involves releasing the first dorsal extensor compartment to create more space for the tendons.
Goal: Restore unrestricted tendon gliding, reduce pressure and prevent continued irritation.
Procedure: Surgery is usually performed as a day-case procedure under local or regional anesthesia⁴.
Postoperative care: Light activities of daily living are usually introduced early. Sutures are commonly removed after approximately 14 days. Mild swelling and tenderness can persist for several months.
Rehabilitation After Surgery or Injection
Rehabilitation after surgery or corticosteroid injection should be gradual and adapted to the patient's tolerance. Recommended measures include:
Ice/heat: Heat may reduce muscle tension, while ice can help with acute symptom flares.
Strengthening: Progression can move from isometric to eccentric and then concentric inner-range loading. Exercises should not provoke significant pain, and progression should occur only when the current level has been tolerated for at least one week⁵.
Exercises may include Theraputty, light-resistance wrist extension and grip exercises.
Neural mobilization: Radial nerve gliding techniques may be used when neural mechanosensitivity is clinically relevant.
Mobilization: Mobilization with movement has shown benefit for reducing pain and improving motion. This can involve a manual radial glide of the carpal joints while the patient moves the thumb through abduction and adduction⁵,²⁸. Combined with eccentric exercise and electrotherapy, favorable outcomes have been reported at six-month follow-up²⁹.
Red Flags
When assessing a patient with suspected De Quervain's tenosynovitis, the following warning features should prompt additional consideration or referral:
Persistent redness and swelling – may indicate infection
Pain ≥7/10 after four weeks of appropriate conservative treatment
Occupations with high hand-use demands, where avoidance of provocative loading is difficult
Conclusion
Effective management of De Quervain's tenosynovitis requires an individualized approach based on functional limitations, pain severity and activity demands. Early orthosis use and patient education may help reduce symptoms and protect the tissue. Physiotherapy with progressive loading, appropriate tissue management and functional mobilization forms the core of rehabilitation. If conservative treatment is unsuccessful, corticosteroid injection and, as a final option, surgery may provide good outcomes. Management should always be guided by clinical assessment and the patient's response over time.
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Reviewed, excluded because of evidence quality
Reviewed, excluded because of evidence quality
Reviewed, excluded because of evidence quality
Reviewed, excluded because of evidence quality
Reviewed, excluded because of evidence quality
Reviewed, excluded because of evidence quality
Reviewed, excluded because of evidence quality
Reviewed, excluded because of evidence quality
Reviewed, excluded because of evidence quality
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Grampians Health Ballarat | Looking after your baby when you have De Quervain's. : https://www.youtube.com/watch?v=sILt995Pgqo
