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INFLAMMATORY AND DEGENERATIVE JOINT DISEASES. Dr. Amro Al-Hibshi, MD, FRCSC, MEd. Painful joint. OBJECTIVES. To identify the differences in etiology and pathophysiology To identify the clinical, radiological and laboratory differences To identify the difference in treatment modalities.
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INFLAMMATORY AND DEGENERATIVE JOINT DISEASES Dr. Amro Al-Hibshi, MD, FRCSC, MEd
OBJECTIVES • To identify the differences in etiology and pathophysiology • To identify the clinical, radiological and laboratory differences • To identify the difference in treatment modalities
Degenerative Osteoarthritis (OA) Post-traumatic arthritis Arthritis following dysplasia Osteonecrosis Osteochondritisdissecans Inflammatory Rheumatoid arthritis (RA) SLE Ankylosingspondylitis Gout Pseudogout DEGENERATIVE AND INFLAMMATORY ARTHRITIS
DEGENERATIVE ARTHRITIS Arthritis Vs. Arthrosis !
OA – Etiology and pathophysiology • Primary Vs. secondary • Mechanical • Iatrogenic • Genetic predisposition • Failed attempt to repair damaged cartilage • Increased water content • Alterations in proteoglycans • Collagen abnormalities • Metalloproteinases • Interleukin 1
RA – Etiology and Pathophysiology • Cell-mediated autoimmune disease • HLA-DR4 and/or –DW4 • ? Genetic • ? Infection • Synovium and soft tissues affected first
OA Localized Asymmetric Large joints Older age Aggravated by activities Varus knees Labs -ve Symptomatic treatment RA Systemic Symmetric Small joints Younger age Morning stiffness Valgus knees Labs +ve Specific treatment Characteristics
OA – PHYSICAL EXAM • Inspection • Palpation • ROM • Special tests • Neurovascular exam
RA –Clinical Picture • Insidous onset • Morning stiffness • Polyarthritis • Most commonly in the hands • Subcutaneous nodules • Labs
OA Loss of joint space Osteophytes Cyst formation Subchondral sclerosis RA Periarticular osteoporosis Loss of joint space Erosions Subluxations and deformities Radiologic Findings
OA Dry WBC’s 200 PMN 25% Glucose and protein equal to serum RA Effusion WBC’s 2000-75000 PMN 50% Low glucose Joint Aspiration
OA - TREATMENT • Activity modification • Physiotherapy • Supportive devices • NSAIDs and analgesics • Intraarticular injections • Joint debridement • Joint realignment procedure • Arthrodesis • Joint replacement
RA - TREATMENT • Medical ! • Medical ! • Medical ! • Surgical - Synovectomy - Arthrodesis - Joint replacement * Preoperative preparation * Risk of infection