Initial Assessment and Management Before Referral
As a PCP, you should first perform a focused clinical examination to determine if the patient has inflammatory arthritis requiring urgent rheumatology referral (within 6 weeks) or osteoarthritis that can be managed initially in primary care with a stepped-care approach. 1
Step 1: Determine the Type of Arthritis
Look for Red Flags Requiring Urgent Rheumatology Referral (Within 6 Weeks):
- Joint swelling (not just pain) associated with pain or stiffness 1
- Morning stiffness >30 minutes 2
- Involvement of MCPJs (metacarpophalangeal joints) - particularly MCP 2 or 5 3
- Involvement of PIPJs (proximal interphalangeal joints) - particularly PIP 2 or 3 3
- Wrist swelling or tenderness 3
- Positive squeeze test of hands 2
- Constitutional symptoms: loss of appetite, fatigue, fever 4
- Multiple joint involvement (polyarticular) 2
If These Are Present, Order Labs Before Referral:
- RF (rheumatoid factor) and anti-CCP antibodies 1, 3
- ESR and CRP 1, 3
- Complete blood count, urinalysis, transaminases, ANA 2
Refer to rheumatology immediately if inflammatory arthritis is suspected - do not delay for lab results if clinical suspicion is high. 1
Step 2: If Osteoarthritis is More Likely
Clinical Features Supporting Hand OA Diagnosis:
- Heberden nodes (DIP joints) and/or Bouchard nodes (PIP joints) 5
- Bony enlargement with or without deformity 5
- Thumb base involvement (first CMC joint) 5
- Age >40 years 5
- Intermittent symptoms targeting characteristic sites 5
- Pain is activity-related rather than associated with prolonged morning stiffness 5
Initiate Primary Care Management First (Stepped-Care Approach):
Step 1 - Core Treatments (Start Here for ALL Patients): 6, 7, 8
- Education about the condition, self-management, staying active 6, 8
- Hand exercises - strengthening and range of motion 6, 7, 8
- Weight management if overweight 6, 7
- Joint protection techniques and ergonomic modifications 6
Step 2 - Add If Core Treatments Insufficient: 7, 8
- Topical NSAIDs (first-line pharmacological treatment) 7, 8
- Orthoses/splints for thumb base OA or other symptomatic joints 6, 8
- Local heat or cold applications 9
- Consider occupational therapy referral for splinting, assistive devices, and joint protection training 6
Step 3 - If Still Inadequate: 7, 8
- Oral NSAIDs (lowest effective dose, shortest duration, assess GI/renal/CV risk) 1, 9
- Intra-articular corticosteroid injections for severely symptomatic joints 7, 8
- Paracetamol (though evidence is weak) 7
When to Refer Hand OA to Rheumatology or Hand Surgery:
Refer to Rheumatology If: 6, 8
- Erosive hand OA suspected (abrupt onset, marked inflammatory symptoms, soft tissue swelling, erythema) 5
- Persistent synovitis despite conservative management 10
- Diagnostic uncertainty between OA and inflammatory arthritis 5
- Need for disease-modifying therapy consideration 8
Refer to Hand Surgery/Orthopedics If: 9, 7
- Severe functional impairment refractory to non-surgical treatment 9
- Substantial impact on quality of life despite optimal medical management 9
- Structural deformity causing significant disability 7
- Patient desires surgical consultation after conservative measures have been exhausted 9
Common Pitfalls to Avoid:
Don't refer immediately without attempting conservative management for typical OA - most patients improve with education, exercises, and topical treatments 6, 7, 8
Don't miss inflammatory arthritis - any true joint swelling (not just bony enlargement) warrants urgent rheumatology evaluation 1
Don't delay referral for inflammatory arthritis waiting for lab results - clinical examination is paramount 1, 2
Don't use age, obesity, or comorbidities as barriers to surgical referral if indicated 9
Don't overlook functional assessment - hand OA can be as disabling as rheumatoid arthritis 5
Don't forget patient education - this is the foundation of management and improves outcomes 6, 8