Dougados et al identified risk factors for identifying a patient with hip osteoarthritis who is at risk for significant radiological progression. This can help identify a patient who may benefit from more aggressive management and closer monitoring. The authors are from multiple hospitals in Paris and other cities of France.
Definition of significant radiological progression: A decrease in joint space width by >= 0.6 mm within 12 months. This assumes that the measurement can be done reliably.
Parameters:
(1) age of the patient at entry
(2) gender of the patient
(3) width of the joint space at entry
(4) migration of the femoral head
(5) Lequesne index for hip osteoarthritis
|
Parameter |
Finding |
Points |
|
age of the patient at entry |
<= 65 years of age |
0 |
|
|
> 65 years of age |
1 |
|
gender of the patient |
male |
0 |
|
|
female |
1 |
|
width of joint space at entry |
>= 2 mm |
0 |
|
|
< 2 mm |
1 |
|
migration of femoral head |
none or not superlateral |
0 |
|
|
superlateral migration |
1 |
|
Lequesne index |
<= 10 |
0 |
|
|
> 10 |
1 |
total number of risk factors =
= SUM(points for all 5 parameters)
Interpretation:
• minimum number of risk factors: 0
• maximum number of risk factors: 5
• The higher the number of risk factors the greater the risk of progression.
Alternatively, the odds ratios can be added or multiplied.
|
Risk Factor |
Odds Ratio (Rounded) |
|
age |
1.9 |
|
gender |
2.5 |
|
width |
2.1 |
|
migration |
4.3 |
|
Lequesne index |
2.7 |
Specialty: Surgery, orthopedic, Immunology/Rheumatology
ICD-10: ,
