Knee OA Flashcards
1
Q
What are the RF for Knee OA?
A
- Genetic factors
- Constitutional factors
- Age
- F
- Obesity
- Low bone density
- Local factors
- joint trauma
- reduced muscle strength
- joint laxity
2
Q
What are the clinical features of OA of knee?
A
- knee pain radiates to thigh and hip
- pain exacerbated by exercise, relieved by rest
- joint stifness
- joint swelling
- reduced ROM
- crepitus
3
Q
What are the differentials for OA of knee?
A
- meniscal or ligament injury
- referred pain from back
- crystal arthropathies
- patellofemoral arthritis
4
Q
What Ix would you order for knee OA?
A
- L and AP radiographs
- LOSS
5
Q
What classifictaion is used for the severity of knee OA?
A
- Kellgren and Lawrence system
6
Q
Describe the Kellgren and Lawrence system?
grade 0-4
A
- Grade 0 – no radiographic features of OA are present
- Grade 1 – unclear joint space narrowing and possible osteophytic lipping
- Grade 2 – definite osteophytes and possible joint space narrowing on AP weight-bearing views
- Grade 3 – multiple osteophytes, definite joint space narrowing, evidence of sclerosis, and possible bony deformity
- Grade 4 – large osteophytes, marked joint space narrowing, severe sclerosis, and definite bony deformity
7
Q
How would you mx Knee OA?
A
- Initial Mx
- weight loss, exercise, smoking cessation
- WHO analgesic ladder
- Physiotherapy
- Surgical Mx
- Total knee replacement
- Partial knee replacement
- for isolated unicompartmental disease
8
Q
How long would a total knee replacement last?
A
- 10 years
9
Q
A
10
Q
A
