Syndrome du canal carpien

• Use culturally safe, trauma- and violence-informed care. Explain why questions matter, seek permission before sensitive topics, and adapt communication to the patient’s language, identity, culture, disability and previous health care experiences (Public Health Agency of Canada 2018).
  
• Informations sociodémographiques : age, sex and gender when relevant, language, occupation, work or study demands, caregiving responsibilities, hand dominance and access needs.

Primary concerns

• Context and onset: side, onset, duration, course, prior episodes, pregnancy or postpartum timing, and relevant wrist or hand trauma, fracture, surgery or other health change.
  
• Location and pattern: affected digits and palm, nocturnal or daytime symptoms, intermittent or constant numbness or tingling, pain location, severity, irritability and any symptoms extending into the forearm or from the neck.
  
• Aggravating and relieving factors: wrist positions, sleep, driving, phone use, forceful grip, repeated hand use, vibration, task duration, breaks, shaking the hand, position changes and previous episodes.
  
• Associated symptoms and participation: hand weakness, dropping objects, reduced dexterity, thumb or thenar change, swelling or colour change, and effects on sleep, self-care, work, school, caregiving, recreation and valued roles.
  
• Revue des systèmes corporels : neurological symptoms beyond the median nerve distribution; neck or proximal arm symptoms; endocrine or metabolic conditions; inflammatory or other musculoskeletal symptoms; vascular or skin change; constitutional illness; and pregnancy or postpartum status when relevant.
  
• Health, lifestyle and history: diabetes, thyroid disease, inflammatory arthritis, kidney disease or dialysis, pregnancy, obesity, previous wrist injury or surgery, medications and supplements, sleep, smoking, physical activity, and occupational or tool exposures such as forceful or repeated hand use and vibration.
  
• Social determinants of health: work, education, caregiving, income, housing, food security, discrimination, safety, social support and access when these may shape health, care or participation (Public Health Agency of Canada 2026a).
  
• Soins et interventions antérieurs : advice, orthoses, activity changes, exercise, hands-on care, medication or injection, and what helped, did not help, caused adverse effects or was difficult to use or continue.
  
• Patient perspective: understanding of the problem, priorities, preferences, cultural context, concerns, expectations and previous experiences of care.
  
• Flag review: check Red Flags and refer to the separate fixed Orange Flags and Yellow Flags modules when relevant.

Outcome measures

Use measures that are meaningful to the patient and practical to repeat. Record a baseline and reassess often enough to guide decisions.

• Patient-specific functioning: Patient-Specific Functional Scale (PSFS).
• Disability and participation: WHO Disability Assessment Schedule 2.0 (WHODAS 2.0).
• Qualité de vie : WHOQOL-BREF, or another validated measure suitable for the patient and setting.
• CTS symptoms and functioning: the Boston Carpal Tunnel Questionnaire (BCTQ) can track symptom severity and hand functioning. The QuickDASH can be used when broader upper-limb disability is important (Erickson et al. 2026).
• Objectifs individuels : agree on patient-defined goals and how progress will be recognized. SMART wording may be used when helpful but is not required.

Orange Flags are signs that a mental health or substance use concern may require emergency or timely assessment or shared care, and may change whether and how MSK care proceeds. They are not diagnoses. Ask directly and respectfully when concern arises, considering immediate safety, severity, change from usual, daily functioning and context. Psychosocial factors that may affect recovery but do not require separate mental health or medical assessment are addressed under Yellow Flags.

ACTION: Arrange emergency assessment now when there is immediate danger or an urgent medical need:

• Suicide, self-harm or harm to others: current intent or plan, a recent attempt, inability to stay safe, or behaviour suggesting an immediate risk of serious harm.
• Severe change in mental state: extreme agitation, confusion, disorganization, possible psychosis or mania with impaired judgment or unsafe behaviour, or inability to meet basic needs when this creates immediate danger.
• Substance-related or medical emergency: suspected overdose, severe intoxication, dangerous withdrawal, delirium or another sudden change requiring urgent medical care.

When immediate safety is uncertain, do not leave the person alone while help is arranged. Follow local emergency procedures and call 9-1-1 for immediate danger or urgent medical need. If the person is thinking about suicide, call or text 9-8-8: Suicide Crisis Helpline with them or support them to do so.

If violence, abuse or exploitation is disclosed or suspected, support immediate safety and follow applicable safety and reporting requirements.

ACTION: Arrange prompt medical or mental health assessment when there is:

• Suicide or self-harm thoughts: thoughts without immediate danger.
• Substantial symptoms or effects: severe, persistent or worsening symptoms of depression, anxiety, trauma, possible psychosis or mania, eating problems or substance use that substantially affect daily life, decision-making or safe participation in care.
• Other reasons for assessment: a marked change from usual behaviour or functioning; concern about medication or substance effects; a presentation outside the clinician’s competence; or a request for help.

Agree with the patient on who will be contacted, how soon and what to do if the situation worsens. Confirm that the person has connected with the service when clinically important.

ACTION: Adapt and coordinate MSK care:

• Safe care: care may continue when it is safe and acceptable and does not delay needed assessment. Adapt communication, examination and care; obtain ongoing consent; and coordinate with other providers with the patient’s permission.
• Continue the MSK assessment: do not assume that a mental health or substance use concern explains the MSK presentation. Continue to consider physical causes and the patient’s account.
• Questionnaires: they may support conversation and monitoring, but do not establish a diagnosis or replace direct questions, clinical judgment or action.
• Acceptable support: ask what type of help is acceptable and whether language, cultural, family, community or other supports are important to the patient.

ACTION: Document and follow up:

Record the concern; relevant questions and the patient’s responses; the safety decision and reasons; actions, advice and referrals; communication and consent; follow-up; and any unresolved concern. Follow applicable privacy, safety and reporting requirements.

For provincial, territorial and national services, see Mental health support: Get help (Public Health Agency of Canada 2026).

Yellow Flags are personal, social, work, school, healthcare, environmental or structural factors that may influence symptoms, functioning, participation or response to care. They are contextual, not diagnoses or certain predictions, and do not mean that symptoms are psychological. They guide how care is tailored and do not by themselves require urgent referral. Explore them through conversation and ongoing outcome review, with attention to the patient’s priorities, strengths and circumstances. A separate Yellow Flag score is not required. New or worsening signs of serious physical illness follow the Red Flag process. Mental health or substance use concerns that need separate assessment, or any immediate safety concern, follow the Orange Flag process and applicable emergency or safeguarding procedures.

Explore relevant factors:

• Understanding, expectations and healthcare experiences: concerns about injury or damage, uncertainty, recovery expectations, confidence, conflicting advice, previous dismissal or harm, and trust in care.
• Responses to symptoms and activity: worry, fear, avoidance, cycles of doing too much and then needing prolonged rest, difficulty pacing, coping, sleep, confidence in self-management, and return to meaningful activities.
• Emotional and life context: distress, low mood, anxiety, grief, trauma, caregiving, relationship change, job loss or other major events. Ask permission before sensitive questions and limit discussion to what is relevant and acceptable to the patient.
• Relationships, culture and strengths: supportive relationships, isolation, family and community roles, cultural or spiritual practices, identity, preferences, language and other sources of resilience.
• Work, school and administrative context: physical and psychosocial demands, control, satisfaction, job security, accommodations, return concerns, and compensation, insurance or legal processes. Explore these neutrally and in context.
• Social and structural conditions: consider social and structural determinants of health (Public Health Agency of Canada 2026), including income, housing, food security, transportation, childcare, access and cost of care, discrimination, racism, colonialism, neighbourhood and workplace conditions, and physical or digital accessibility.

ACTION: Respond with the patient:

• Ask, do not assume: use open questions to understand what helps, what gets in the way, what matters and what feels feasible. Ask about strengths and protective factors, not only difficulties. Do not treat a person’s circumstances, culture or choices as a deficit.
• Plan together: integrate relevant findings into shared goals, education, self-management, physical activity or exercise, and participation in meaningful activities. Adapt communication, setting, pace, cost and access where possible.
• Connect and coordinate: with the patient’s consent, consider appropriate clinical, social, workplace, school, community, Indigenous or culturally specific supports. Clarify who will do what and follow up when the connection is important to the plan.
• Review response to care: reassess the patient’s account and the pathway’s selected outcomes at clinically relevant points. If progress differs from expected, review the clinical impression, care plan, access and other barriers; do not automatically attribute the outcome to Yellow Flags.
• Document: record relevant factors and strengths, the patient’s priorities and preferences, agreed actions, consent, referrals or coordination, follow-up, and any change requiring the Orange Flag process.

Select examination elements that answer a clinical question or may change care. Adapt the examination to the patient’s presentation, comfort, consent and abilities.

• Consent and comfort: explain what you propose, provide choices about positioning, pace and support, and confirm ongoing consent.

• Condition-specific safety: defer or modify testing when major trauma, marked swelling, severe pain, impaired circulation, infection or rapidly progressive neurological loss requires urgent assessment.

• Observation and function: hand use, protective behaviour, thenar bulk and symmetry, orthosis use, and patient-relevant tasks such as grip, pinch, manipulation and sustained positioning.

• Symptom distribution: map sensory symptoms, including the thumb, index, middle and ring fingers, the fifth finger, palm and thenar area; note nocturnal, intermittent, constant, proximal or multi-nerve patterns.

• Sensation: compare median, ulnar and radial territories. Light touch, Semmes-Weinstein monofilaments or static two-point discrimination can be used when the result may affect severity assessment or referral. (Erickson et al. 2026).

• Motor and dexterity: assess thenar bulk, thumb abduction and opposition, and grip, pinch or dexterity when relevant; compare sides and interpret pain-limited effort cautiously. (Erickson et al. 2026).

• Provocative tests: Phalen, Tinel and carpal compression tests may contribute when interpreted with the history and other findings. No single provocative test confirms or excludes CTS. (Erickson et al. 2026).

• Regional and neurological screen: examine the neck, shoulder, elbow, forearm, other peripheral nerves, reflexes or broader neurological function when symptoms are atypical or another cause is possible.

• Diagnostic reasoning and testing: the CTS-6 can support a clinical diagnosis. Routine ultrasound or nerve conduction and electromyography are not required when the presentation is clinically clear. Testing can be useful for diagnostic uncertainty, atypical or progressive findings, possible coexisting neuropathy, or when the result is likely to change referral or treatment. Magnetic resonance imaging and upper-limb neurodynamic testing are not standard diagnostic tests for CTS (American Academy of Orthopaedic Surgeons 2024; Erickson et al. 2026).
  
• Repeat and adapt: repeat focused findings when needed to review progress, revisit the working diagnosis or decide whether further assessment or referral is appropriate.

• Typical intermittent CTS: nocturnal or position- and activity-sensitive numbness, tingling or pain in a median nerve distribution, often eased by changing wrist position or shaking the hand, without objective weakness or thenar wasting. (Erickson et al. 2026).
  
• Persistent CTS with functional impact: frequent or constant symptoms that affect sleep, dexterity or valued roles and may include measurable sensory change, while urgent progressive motor findings are absent.
  
• CTS with advanced nerve involvement: persistent sensory loss, objective thumb weakness, thenar wasting or marked dexterity decline. This presentation follows prompt medical or surgical assessment rather than routine conservative care. (American Academy of Orthopaedic Surgeons 2024; Erickson et al. 2026).
  
• Atypical or mixed presentation: symptoms outside a typical median distribution, several nerve territories, prominent proximal symptoms, vascular or inflammatory findings, or a broader neurological pattern. Revisit the differential diagnosis and coordinate further assessment.
  
• Presentations can overlap or change. Document the working clinical impression and revisit it as new information and the response to care become available.

Base care on the presentation, safety, goals, context and response. Use adaptable principles and options rather than a ranked sequence, and repeat meaningful outcomes to guide change.

Education, self-management and participation

• Explain the condition and options: discuss median nerve compression at the wrist, the variable course, signs that need earlier reassessment, and how the patient’s findings shape conservative care or referral (American Academy of Orthopaedic Surgeons 2024; Erickson et al. 2026).
• Adapt aggravating tasks without blanket rest: symptom-guided changes can include shorter task periods, breaks, task rotation, less forceful grip or vibration, neutral wrist positioning and accessible work, study or caregiving accommodations. Review whether changes improve symptoms and participation.
• Night orthosis: a comfortable forearm-based wrist orthosis near neutral can form part of care for mild to moderate CTS, particularly for nocturnal symptoms. Review fit, skin, sleep, benefit, burden and continued need because evidence and individual response vary (Erickson et al. 2026; Karjalainen et al. 2023).

Physical activity and exercise

• Maintain valued activity: continue general physical activity and meaningful hand use within an acceptable symptom response, while temporarily adapting loads or positions that repeatedly aggravate symptoms.
• Movement and exercise options: tailored wrist, hand, nerve or tendon mobility work can be included as one part of care for mild to moderate CTS. An orthosis combined with stretching can be an option when there is no thenar atrophy and two-point discrimination is normal. Adapt or stop an exercise that causes sustained symptom worsening (Erickson et al. 2026).

Hands-on and symptom-relieving care

• Thérapie manuelle : a time-limited trial directed to relevant cervical or upper-limb areas can form part of care for short-term pain and functioning in mild to moderate nonsurgical CTS. Continue only when benefit is meaningful and acceptable; do not imply durable disease modification (Erickson et al. 2026; American Academy of Orthopaedic Surgeons 2024).
• Culturally grounded approaches: traditional or community-based approaches identified by the patient can be incorporated when they are safe, acceptable and consistent with the clinical presentation and care goals.

Psychological, social and interdisciplinary support

• Participation support: address sleep disruption, concerns about hand use, work or study demands, caregiving, costs and access. Occupational, vocational, ergonomic, medical or community support can be coordinated when it helps the patient pursue valued roles.

Médicament

• Local corticosteroid injection: this can form part of a medical shared decision for short-term symptom and function improvement in mild to moderate CTS, but it does not have established long-term benefit. Evidence may not apply fully to severe CTS or to people with diabetes, inflammatory arthritis or other conditions excluded from trials (Ashworth et al. 2023; American Academy of Orthopaedic Surgeons 2024).
• Medication coordination: medication choices remain within the authorized prescriber’s scope and account for health conditions, pregnancy, other medicines, risks and patient preferences. Oral medicines do not have an established long-term disease-specific benefit for CTS and cannot substitute for timely assessment of progressive neurological loss (American Academy of Orthopaedic Surgeons 2024).

Monitoring and reassessment

• Agree on a reassessment point based on the presentation, safety, goals, care being tried, patient needs and access rather than a fixed visit schedule.

• Repeat the small outcome set recorded at baseline and review symptom distribution and frequency, sleep, sensation, thumb strength and thenar bulk when relevant, functioning, participation, benefits, harms, treatment burden and progress toward patient-defined goals. Continue what is useful and acceptable; adapt or stop what is not; and revisit the clinical presentation, differential diagnosis, referral or shared care when progress differs from expectations or new safety concerns emerge.

• Expected course: CTS has a variable course. Intermittent mild to moderate symptoms may fluctuate or improve with acceptable conservative care, while persistent sensory or motor loss may continue or progress. Use reassessment rather than a universal timeline (Erickson et al. 2026; American Academy of Orthopaedic Surgeons 2024).
  
• Factors associated with a less favourable course: longer symptom duration, greater symptom severity, constant sensory loss, objective thumb weakness or thenar wasting may be associated with less complete recovery. These are group-level patterns and do not determine an individual’s outcome (Erickson et al. 2026; American Academy of Orthopaedic Surgeons 2024).
  
• Potential supports for recovery: early recognition of neurological change, an acceptable orthosis or activity plan, workable participation supports, access to medical or surgical assessment when needed, and management of relevant coexisting conditions may support recovery without guaranteeing it.
  
• Discussing prognosis: explain uncertainty in plain language, connect prognosis to the patient’s goals and experience, and update it using repeated outcomes, neurological findings and response over time.