Table 1

Characteristics of the participants at baseline

CharacteristicsRealignment to placebo (n=40)Placebo to realignment (n=40)
Age (years), mean (SD)63 (10.8)60 (13.1)
Male sex, n (%)15 (37.5)15 (37.5)
Body mass index (kg/m2), mean (SD)32.7 (8.4)34.7 (10.8)
Kellgren–Lawrence grade ≥3, n (%)39 (97.5)40 (100)
Kellgren–Lawrence grade 2, n (%)1 (2.5)0
Kellgren–Lawrence grade 3, n (%)25 (62.5)28 (70)
Kellgren–Lawrence grade 4, n (%)14 (35)12 (30)
Medial JSN grade 0, n (%)1 (2.5)0
Medial JSN grade 1, n (%)9 (22.5)10 (25)
Medial JSN grade 2, n (%)14 (35)16 (40)
Medial JSN grade 3, n (%)16 (40)14 (35)
Anatomical axis (°)1.0 (3.9); median=10.7 (5.3); median=0
Contralateral knee Kellgren–Lawrence grade ≥2, n (%)32 (80)30 (75)
WOMAC Pain score (0–20 scale), mean (SD)9.2 (3.4)9.1 (3.4)
WOMAC Function score (0–68 scale), mean (SD)33.3 (11.8)34.6 (10.3)
  • JSN, joint space narrowing; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.