Table 2 Preoperative knee pain and radiographic assessment
From: Characterization of osteoarthritic human knees indicates potential sex differences
Variable | Female | Male | p valuea |
|---|---|---|---|
Radiographic assessment | |||
Kellgren-Lawrence Grading Scale - no. (%) | 0.37 | ||
Grade 3 | 1 (10 %) | 0 (0 %) | |
Grade 4 | 9 (90 %) | 10 (100 %) | |
Median pain-pressure threshold (IQR) - kg | |||
Medial joint line | 4.5 (3.7, 5.1) | 5.3 (4.1, 6.9) | 0.16 |
1 cm above the medial joint line | 3.0 (2.7, 3.8) | 5.1 (4.5, 6.2) | 0.007 |
1 cm below the medial joint line | 4.0 (3.5, 4.1) | 5.6 (4.0, 6.8) | 0.10 |
Area(s) of knee pain - no. (%)b | |||
Localized | |||
Superior lateral | 0 (0 %) | 1 (10 %) | 1.00 |
Patella | 0 (0 %) | 1 (10 %) | 1.00 |
Medial joint line | 3 (30 %) | 2 (20 %) | 1.00 |
Inferior lateral | 1 (10 %) | 0 (0 %) | 1.00 |
Inferior medial | 1 (10 %) | 0 (0 %) | 1.00 |
Regional | |||
Medial | 1 (10 %) | 1 (10 %) | 1.00 |
Patella | 1 (10 %) | 2 (20 %) | 1.00 |
Diffuse pain | 4 (40 %) | 3 (30 %) | 1.00 |