Anatomy & Body Systems
- Can affect any joint
- Often asymmetric
- Common sites: fingers, wrists, knees, ankles, spine
- May involve distal interphalangeal (DIP) joints
- Where tendons/ligaments attach to bone
- Common sites: Achilles tendon, plantar fascia, elbows
- Inflammation is hallmark feature
- Psoriasis skin lesions
- Nail changes: pitting, onycholysis, hyperkeratosis
- May precede or follow joint symptoms
- Fatigue
- Eye inflammation (uveitis)
- Cardiovascular risk
- Metabolic syndrome association
Causes & Root Factors
- T-cells attack healthy joint tissue
- Inflammatory cascade
- Cytokine production (TNF, IL-17, IL-23)
- Genetic predisposition
- Family history
- Specific HLA genes
- Non-HLA genetic factors
- Infections (streptococcal)
- Trauma
- Stress
- Medications
Risk Factors
- Psoriasis: Primary risk factor
- Family history: Increases risk
- Age: 30-50 years typical
- Nail psoriasis: Increases PsA risk
- Not well established
- Early treatment of psoriasis may help
- Healthy lifestyle
Signs & Characteristics
- Asymmetric oligoarthritis: Most common
- Symmetric polyarthritis: Like rheumatoid arthritis
- DIP predominant: Fingers only
- Arthritis mutilans: Severe, destructive form
- Axial disease: Spine involvement
- Joint pain and swelling
- Morning stiffness (>30 minutes)
- Fatigue
- Reduced range of motion
- Heel pain (Achilles)
- Sole of foot pain
- Elbow pain
- Buttock pain
- Swollen fingers or toes
- Sausage appearance
- Painful
- Psoriasis patches
- Nail pitting
- Nail separation
- Nail thickening
Associated Symptoms
- Uveitis
- Conjunctivitis
- Iritis
- Cardiovascular disease
- Metabolic syndrome
- Osteoporosis
- Depression
- Joint damage
- Disability
- Reduced quality of life
- Cardiovascular disease
Differential Diagnosis
- Usually symmetric
- Rheumatoid factor positive
- No skin/nail involvement
- Different treatment
- Primarily spine
- HLA-B27 positive
- No skin involvement
- Acute attacks
- Uric acid elevated
- Different joint distribution
- No inflammation
- Older age
- Different pattern
Conventional Treatments
- Pain relief
- Reduce inflammation
- For mild symptoms
- Disease-modifying antirheumatic drugs
- Methotrexate first line
- Sulfasalazine
- Leflunomide
- TNF inhibitors (etanercept, adalimumab)
- IL-17 inhibitors (secukinumab)
- IL-23 inhibitors (guselkumab)
- JAK inhibitors (tofacitinib)
- Reduce symptoms
- Prevent joint damage
- Improve quality of life
- Achieve remission
Integrative Treatments
- Rhus toxicodendron: For joint stiffness
- Arnica: For pain and inflammation
- Calcarea carbonica: For chronic cases
- Sulfur: For skin manifestations
- Anti-inflammatory diet
- Avoid trigger foods
- Balanced nutrition
- Shallaki: Joint support
- Turmeric: Anti-inflammatory
- Ashwagandha: Immunity modulation
- Maintain joint mobility
- Strengthen muscles
- Manage pain
- Exercise guidance
- Nutritional counseling
- Stress management
- Lifestyle modifications
- Anti-inflammatory protocols
Self Care
- Regular, gentle exercise
- Swimming
- Walking
- Stretching
- Use assistive devices
- Avoid excessive strain
- Pace activities
- Rest during flares
- Moisturize regularly
- Treat psoriasis
- Protect skin
- Maintain healthy weight
- Don't smoke
- Limit alcohol
- Manage stress
Prevention
No Proven Prevention
- Cannot prevent PsA if genetically susceptible
- Early treatment of psoriasis may reduce risk
- Regular skin checks
- Report joint symptoms
- Monitor for nail changes
- Healthy weight
- Regular exercise
- Stress management
When to Seek Help
- Joint pain with psoriasis
- New joint symptoms
- Stiffness >30 minutes
- Swelling in joints or fingers/toes
Red Flags
- Severe pain
- Joint deformity
- Significant disability
- Systemic symptoms
Prognosis
- Chronic, lifelong condition
- Usually progressive without treatment
- Flare-ups and remissions
- Most achieve good control
- Can slow or halt progression
- Improved quality of life
Prognosis Factors
- Early treatment = better outcomes
- Severe skin disease = more severe arthritis
- Some develop disability
FAQ
No, they're different. PsA occurs with psoriasis, involves enthesitis and dactylitis, often affects DIP joints, and is rheumatoid factor negative.
Most patients require ongoing medication to control the disease. Treatment goals include achieving remission, which may allow medication reduction in some cases.
While no diet cures PsA, anti-inflammatory foods may help reduce symptoms. Some find certain foods trigger flares.
With modern treatments, life expectancy is normal. However, associated cardiovascular and metabolic conditions may affect overall health.
Yes, regular exercise maintains joint mobility, strengthens muscles, and improves overall health. Low-impact activities are recommended.