J Korean Orthop Assoc.
2001 Jun;36(3):227-232.
A Radiological Analysis of the Patients with Patellofemoral Pain Syndrome
- Affiliations
-
- 1Department of Orthopedic Surgery, Asan Medical center, Ulsan University Medical College, Seoul, Korea.
Abstract
- PURPOSE
We intend to provide more objective data for diagnosis of the patellofemoral pain syndrome by analyzing the positional changes of the patella radiologically.
MATERIALS AND METHODS
In 42 normal knees and in 91 knees of patients with the patellofemoral pain syndrome, the following 6 parameters were analyzed using a 30 degree flexion lateral view and a Merchant axial view: 1) the Insall and Salvati method, 2) the Blackburne and Peel method, 3) the Saille method, 4) the depth of the trochlea, 5) the sulcus angle, 6) and the congruence angle.
RESULTS
Using the Blackburne and Peel method of assessing the height of patella, the ratio was 0.86 in the control group, in contrast to 0.92 in the patellofemoral pain syndrome group (P<0.05). The average value of the congruence angle was 2.9 in the control group, while it was -9.2 in patellofemoral pain syndrome group (P<0.05). The other parameters showed no statistical significance.
CONCLUSION
This indicates that the patella alta by the Blackburne and Peel method and the increase of congruence angle are useful in the diagnosis of the patellofemoral pain syndrome.
