Modern Study Review (AI-Generated)
High-Yield Summary
Inflammatory arthritis encompasses a spectrum of autoimmune diseases such as rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), ankylosing spondylitis (AS), and psoriatic arthritis (PsA), all of which pose unique challenges in orthopaedic surgery. Preoperative planning is critical due to increased risks of infection, altered bone quality, soft tissue contractures, and systemic comorbidities. Understanding disease-specific complications and medication management optimizes surgical outcomes and minimizes perioperative morbidity. Modern care emphasizes multidisciplinary coordination, especially with rheumatology, to balance immunosuppression and surgical risk.
Key Diagnostic Findings
| Aspect | Details |
|---|---|
| Anatomy & Pathophysiology | Chronic synovitis leads to joint destruction, soft tissue contractures, and periarticular osteopenia. Atlanto-axial and atlanto-occipital instability common in RA and AS. |
| Clinical Presentation | Joint pain, swelling, deformity, limited range of motion, systemic symptoms (fatigue, anemia). PsA often has skin lesions increasing infection risk. |
| Imaging | X-rays show joint space narrowing, erosions, osteopenia, and subluxations. MRI/CT for cervical spine instability. Pulmonary imaging for restrictive lung disease in AS and RA. |
| Classification Systems | Disease-specific activity scores (e.g., DAS28 for RA), but no universal orthopaedic classification; focus on joint damage and deformity severity. |
Current Gold Standard Treatment
| Treatment Type | Indications & Considerations |
|---|---|
| Non-Operative | Disease-modifying antirheumatic drugs (DMARDs), biologics, NSAIDs, and steroids to control inflammation and prevent progression. Physical therapy to maintain function. |
| Operative | Indicated for severe joint destruction, deformity, instability, or failed conservative management. Includes joint replacement, fusion (rare for cervical spine instability), and soft tissue releases. |
| Preoperative Optimization | Multidisciplinary evaluation including pulmonary function tests, anemia correction, infection risk assessment, and medication adjustment (e.g., holding methotrexate/steroids per guidelines). |
| Anesthesia Considerations | Awake fiberoptic intubation for cervical instability; careful positioning to avoid respiratory compromise in AS. |
Modern Complications & Outcomes
| Complication | Notes |
|---|---|
| Infection | Increased risk, especially in PsA (due to skin lesions) and RA (immunosuppression). Vigilant perioperative antibiotic prophylaxis required. |
| Bone Quality Issues | Periarticular osteopenia and increased bone turnover in RA increase risk of implant loosening, especially with cementless fixation. Cemented implants preferred. |
| Soft Tissue Challenges | Contractures and deformities complicate ligament balancing and soft tissue releases, particularly in knee and hip arthroplasty. |
| Pulmonary & Cardiovascular | Restrictive lung disease in AS and RA increases perioperative risk; preop pulmonary function testing essential. |
| Neurologic | Cervical spine instability may cause spinal cord injury if unrecognized; requires careful airway management. |
| Medication Management | Steroid and immunosuppressant use increases infection risk and impairs healing; perioperative management protocols critical. |
| Outcomes | With optimized care, joint replacement improves pain and function significantly, but complication rates remain higher than in osteoarthritis patients. |
Classic Clinical Notes
Inflammatory Arthritis
Approach to Inflammatory Arthritis – Preoperative Planning
- Includes rheumatoid arthritis, SLE, ankylosing spondylitis, psoriatic arthritis
Pre-Operative Considerations
- Beware the increased risk of infection: psoriatic arthritis patients have a higher risk of deep infection – probably from skin lesions colonized with bacteria. Rheumatoid arthritis patients also have a higher risk of infection.
- Beware skin ulceration: rheumatoid arthritis patients may have skin vasculitis that makes them prone to ulceration.
- Beware atlanto-axial and atlanto-occipital instability in rheumatoid arthritis – may be asymptomatic in over 50%. May also see instability in ankylosing spondylitis. Does not require fusion – requires careful intubation (awake, fluoroscopic).
- Beware limited chest wall expansion in ankylosing spondylitis or other seronegative arthritides – need preoperative pulmonary function studies and careful positioning so as to not impede their diaphragmatic breathing.
- Beware pulmonary disease in rheumatoid arthritis – restrictive +/- nodules – need preoperative pulmonary function.
- Beware ileitis and colitis when associated with arthritis – increased risk of infection.
- Beware anemia of chronic disease – almost universal.
- Beware immune suppression, with and without steroid use.
- Beware variations in bone quality – rheumatoid arthritis patients have increased bone turnover in periarticular bone – may attribute to high loosening rates; be wary of using cementless fixation in this population.
- Beware soft tissue contractures and joint deformity in inflammatory arthritis – be prepared for difficult ligament balancing and soft tissue releases around the knee and hip.
- Beware the medications that they may be on – NSAIDs, steroids, methotrexate – all should be noted, and arguably stopped in lieu of their surgery.
Last Updated on January 24, 2026 by orthonet
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