QuestionSBA
QuestionChoice
This is incorrect. Psoriatic arthritis is an inflammatory arthritis associated with nail changes, dactylitis and psoriatic skin changes. None of these are present in this case.
10025878
d
Psoriatic arthritis
QuestionChoice
This is correct. Risk factors for the development of osteoarthritis include age (60 and above) and female sex. It is associated with pain in the affected joint during and after use. Although there is morning stiffness, as this lasts for less than 30 minutes it is not an indicator of inflammatory arthritis.
10025875
a
Osteoarthritis
QuestionChoice
This is incorrect. Rheumatoid arthritis is an inflammatory arthritis. Unlike osteoarthritis, it tends to present with multiple joint involvement, is often symmetrical and is sometimes accompanied by systemic symptoms. It is also characterised by morning stiffness lasting for more than 30 minutes. Unlike in osteoarthritis, pain often improves with movement of the joints.
10025876
b
Rheumatoid arthritis
QuestionChoice
This is incorrect. Septic arthritis presents acutely with a swollen, painful and red joint, as well as signs of systemic infection. This patient is otherwise well, making osteoarthritis a more likely diagnosis.
10025879
e
Septic arthritis
QuestionChoice
This is incorrect. Gout is associated with acute attacks of pain, swelling and erythema of a joint; classically in the big toe or ankle. The chronicity of this patient's symptoms and lack of erythema make gout less likely than osteoarthritis in this case.
10025877
c
Gout
Concept
Chapter
2693
3976
Osteoarthritis
Topic
146
Rheumatology
17573
A 65 year old female patient presents to the GP with chronic left knee pain. This has been troubling her for around three months, and is worse after walking long distances. She also reports stiffness first thing in the morning, although this eases after around five minutes. Other than her pain she feels well. She takes medication for hypertension and type 2 diabetes.

On examination there is mild swelling of the left knee, but no erythema. There is tenderness and crepitus on passive flexion and extension of the left knee. No popliteal lumps.

Which of the following is the most likely underlying diagnosis?
a