Management of Joint Swelling During Pregnancy
For joint swelling during pregnancy, intra-articular glucocorticoid injections should be considered as first-line treatment for local symptoms of inflammation, while continuing pregnancy-compatible medications such as hydroxychloroquine, azathioprine, sulfasalazine, and colchicine if needed for systemic disease control. 1
Initial Assessment
Determine if joint swelling represents inflammatory arthritis by evaluating:
- Number of affected joints
- Morning stiffness duration (>30 minutes suggests inflammatory cause)
- Presence of pain with swelling
- Involvement of metacarpophalangeal or metatarsophalangeal joints
Basic laboratory workup should include:
- Complete blood count
- Urinalysis
- Liver function tests (transaminases)
- Antinuclear antibodies
- Erythrocyte sedimentation rate or C-reactive protein
- Rheumatoid factor and anti-CCP antibodies if rheumatoid arthritis is suspected
Treatment Algorithm
Local Therapy
- Intra-articular glucocorticoid injections
Systemic Therapy for Underlying Rheumatic Disease
First-Line Medications (Safe Throughout Pregnancy)
- Hydroxychloroquine (strongly recommended) 1
- Sulfasalazine (strongly recommended) 1
- Azathioprine/6-mercaptopurine (strongly recommended) 1
- Colchicine (strongly recommended) 1
Second-Line Medications (Conditionally Recommended)
- Calcineurin inhibitors (tacrolimus, cyclosporine) 1
- TNF inhibitors:
Corticosteroids
- Low-dose prednisone (≤10 mg daily) can be continued if needed 1
- Higher doses should be tapered to <20 mg daily, adding pregnancy-compatible steroid-sparing agents if necessary 1
Medications to Avoid During Pregnancy
- Methotrexate, mycophenolate mofetil, cyclophosphamide, leflunomide (strongly contraindicated) 1, 3
- NSAIDs should be avoided in third trimester due to risk of premature closure of ductus arteriosus 1
- Rituximab, belimumab, anakinra, abatacept, tocilizumab, secukinumab, ustekinumab should be discontinued when pregnancy is confirmed 1
Special Considerations
Disease-Specific Responses to Pregnancy
- Rheumatoid arthritis often improves during pregnancy
- Psoriatic arthritis improves in approximately 80% of pregnancies
- Ankylosing spondylitis typically remains active or worsens in 80% of cases 4
- Be prepared for potential postpartum flares, which occur in 50-90% of cases depending on the underlying disease 4
Sacroiliac Joint Pain
- Common during pregnancy and may require specific management
- Osteopathic manipulative treatment may be beneficial 5
Monitoring
- Regular assessment of disease activity throughout pregnancy
- Monitor for medication side effects
- Adjust treatment based on disease activity and pregnancy stage
- Coordinate care with obstetrician and maternal-fetal medicine specialist
Postpartum Considerations
- Anticipate possible disease flare in postpartum period
- For breastfeeding mothers, continue hydroxychloroquine, TNF inhibitors, sulfasalazine, colchicine, azathioprine, and prednisone <20 mg daily 1
- For prednisone ≥20 mg daily, discard breast milk obtained within 4 hours of medication administration 1
By following this structured approach to managing joint swelling during pregnancy, clinicians can effectively control inflammation while ensuring the safety of both mother and baby.