Rheumatology Flashcards
What type of joints are affected in osteoarthritis?
Synovial
What are 4 risk factors for osteoarthritis
obesity, age, occupation, trauma, being female and family history
What are the most commonly affected joints in osteoarthritis?
Hips
Knees
Distal interphalangeal (DIP) joints in the hands
Carpometacarpal (CMC) joint at the base of the thumb
Lumbar spine
Cervical spine (cervical spondylosis)
What x-ray changes may be present in osteoarthritis?
L – Loss of joint space
O – Osteophytes (bone spurs)
S – Subarticular sclerosis (increased density of the bone along the joint line)
S – Subchondral cysts (fluid-filled holes in the bone)
what are some general signs of osteoarthritis?
Bulky, bony enlargement of the joint
Restricted range of motion
Crepitus on movement
Effusions (fluid) around the joint
What are some hand signs seen in osteoarthritis
Heberden’s nodes (in the DIP joints)
Bouchard’s nodes (in the PIP joints)
Squaring at the base of the thumb (CMC joint)
Weak grip
Reduced range of motion
NICE guidelines state that a diagnosis of osteoarthritis can be made without any investigations if what?
the patient is over 45, has typical pain associated with activity and has no morning stiffness (or stiffness lasting under 30 minutes)
What are 3 non-pharmacological management options for osteoarthritis
exercise
weight loss
occupational therapy
What are the pharmacological management options for osteoarthritis?
Topical NSAIDs first-line for knee osteoarthritis
Oral NSAIDs where required and suitable (co-prescribed with a proton pump inhibitor for gastroprotection)
Weak opiates and paracetamol are only recommended for short-term, infrequent use.
Intra-articular steroid injections
Joint replacement
How would you describe the pattern of arthritis in rheumatoid arthritis?
symmetrical polyarthritis
What are 4 risk factors for rheumatoid arthritis
female
smoking
obesity
family history
What is the most common gene associated with rheumatoid arthritis?
HLA DR4
What antibodies can be present in rheumatoid arthritis?
Rheumatoid factor (present in 70%)
anti-CCP antibodies (more sensitive + specific, in 80%)
What 3 joint symptoms are present in rheumatoid arthritis?
Pain
Stiffness
Swelling
What are the most commonly affected joints in rheumatoid arthritis
Metacarpophalangeal (MCP) joints
Proximal interphalangeal (PIP) joints
Wrist
Metatarsophalangeal (MTP) joints (in the foot)
What are some associated systemic symptoms of rheumatoid arthritis?
Fatigue
Weight loss
Flu-like illness
Muscles aches and weakness
What is palindromic rheumatism
self-limiting episodes of inflammatory arthritis, with pain, stiffness and swelling typically affecting only a few joints. The symptoms last days, then completely resolve. Joints appear normal between episodes. Rheumatoid factor or anti-CCP antibodies may indicate that it will progress to rheumatoid arthritis.
What are some hand signs in advanced rheumatoid arthritis ?
Z-shaped deformity to the thumb
Swan neck deformity (hyperextended PIP and flexed DIP)
Boutonniere deformity (hyperextended DIP and flexed PIP)
Ulnar deviation of the fingers at the MCP joints
What is Atlantoaxial subluxation
Synovitis and damage to the ligaments around the odontoid peg of the axis (C2) allow it to shift within the atlas (C1). Subluxation can cause spinal cord compression and is an emergency.
What are some extra-articular manifestations of rheumatoid arthritis
Pulmonary fibrosis
Felty’s syndrome (a triad of rheumatoid arthritis, neutropenia and splenomegaly)
Sjögren’s syndrome (with dry eyes and dry mouth)
Anaemia of chronic disease
Cardiovascular disease
Eye manifestations
Rheumatoid nodules (firm, painless lumps under the skin, typically on the elbows and fingers)
Lymphadenopathy
Carpel tunnel syndrome
Amyloidosis
Bronchiolitis obliterans (small airway destruction and airflow obstruction in the lungs)
Caplan syndrome (pulmonary nodules in patients with rheumatoid arthritis exposed to coal, silica or asbestos dust)
What are some eye manifestations related to rheumatoid arthritis and it’s treatment?
Dry eye syndrome (keratoconjunctivitis sicca)
Episcleritis
Scleritis
Keratitis
Cataracts (secondary to steroids)
Retinopathy (secondary to hydroxychloroquine)
What initial investigations would you do in a patient with suspected rheumatoid arthritis?
Rheumatoid factor
Anti-CCP antibodies
Inflammatory markers
X-rays of the hands and feet
Ultrasound or MRI can be used to detect synovitis
What are the x-ray changes in rheumatoid arthritis
Periarticular osteopenia
Boney erosions
Soft tissue swelling
Joint destruction and deformity
State 2 scoring systems used in rheumatoid arthritis
Health Assessment Questionnaire (HAQ)
Disease Activity Score 28 Joints (DAS28)