Research Article
Analgesic Effect of Passive Range-of-Motion Exercise on the Healthy Side for Pain after Total Knee Arthroplasty: A Prospective Randomized Trial
Table 1
Baseline characteristics of the patients.
| | | Bilateral group (N = 20) | Unilateral group (N = 20) | value |
| | Age (yrs.) | 73.8 ± 6.6 | 74.7 ± 5.6 | 0.84 | | Sex | Male, 6; female, 14 | Male, 4; female, 16 | 0.72 | | BMI (kg/m2) | 25.24 (23.31, 28.52) | 25.28 (23.87, 27.98) | 0.88 | | Visual analogue scale (mm) | 49 (11.25, 62.75) | 53.5 (19.25, 71.5) | 0.42 | | Range of motion (°) | 110 (100, 128.75) | 110 (100, 118.75) | 0.67 | | Implant (P; T; Tr; I) | 10; 3; 4; 3 | 14; 4; 1; 1 | 0.113 |
| | Diagnosis of total knee arthroplasty | | Osteoarthritis | 20 (100%) | 17 (85%) | 0.072 | | Osteonecrosis | 0 (0%) | 3 (15%) |
| | Kellgren–Lawrence classification (operated side) (n (%)) | | 0 | 0 (0%) | 0 (0%) | 0.95 | | 1 | 0 (0%) | 0 (0%) | | 2 | 1 (5%) | 1 (5%) | | 3 | 11 (55%) | 10 (50%) | | 4 | 8 (40%) | 9 (45%) |
| | Kellgren–Lawrence classification (nonoperated side) (n (%)) | | 0 | 0 (0%) | 0 (0%) | 0.32 | | 1 | 1 (5%) | 3 (15%) | | 2 | 5 (20%) | 8 (40%) | | 3 | 7 (35%) | 3 (15%) | | 4 | 1 (5%) | 3 (15%) | | Post-total knee arthroplasty | 6 (30%) | 3 (15%) |
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P, Persona; T, Trimax; Tr, Triathlon; I, Initia.
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