Introduction
Materials and methods
Statistical analysis
Results
Age (mean ± SD) (Range) | 59.73 ± 7.15 (35–75) |
Sex | |
Male | 23 (23.0) |
Female | 77 (77.0) |
Diagnosis | |
Osteoarthritis | 87 (87.0) |
Bilateral osteoarthritis | 8 (8.0) |
Rheumatoid arthritis | 5 (5.0) |
Previous operation | |
Yes | 29 (29.0) |
No | 70 (70.0) |
Comorbidities | |
Hypertension | |
Yes | 25 (25.0) |
No | 75 (75.0) |
Diabetes | |
Yes | 15 (15.0) |
No | 85 (85.0) |
Baseline | 6 month postoperative | 12 months postoperative | |
---|---|---|---|
Oxford total score | |||
Median (interquartile range) | 17.0 (12.0–24.0) | 34.0 (25.0–0.34) | 43.0 (37.0–0.43) |
χ2 | 168.36 | ||
P value | < 0.001 | ||
KOOS stiffness | |||
Median (interquartile range) | 3.0 (3.0–4.0) | 2.0 (1.0–2.0) | 0.0 (0.0–1.0) |
χ2 | 198.53 | ||
P value | < 0.001 | ||
KOOS pain | |||
Median (interquartile range) | 14.0 (13.0–15.0) | 8.0 (7.0–10.0) | 2.0 (1.0–3.0) |
χ2 | 200.00 | ||
P value | < 0.001 | ||
KOOS function | |||
Median (interquartile range) | 8.0 (7.0–8.0) | 4.0 (4.0–0.6) | 1.5 (1.0–2.0) |
χ2 | 200.00 | ||
P value | < 0.001 |
6 months postoperative- baseline | 12 months postoperative- baseline | 12 months postoperative- 6 months postoperative | |
---|---|---|---|
Total Oxford knee score | |||
Z | − 7.50 | − 8.66 | − 8.73 |
P value | < 0.001 | < 0.001 | < 0.001 |
KOOS stiffness | |||
Z | − 8.88 | − 9.10 | − 8.92 |
P value | < 0.001 | < 0.001 | < 0.001 |
KOOS pain | |||
Z | − 8.72 | − 8.72 | − 8.79 |
P value | < 0.001 | < 0.001 | < 0.001 |
KOOS function | |||
Z | − 8.81 | − 8.77 | − 8.83 |
P value | < 0.001 | < 0.001 | < 0.001 |
Oxford knee score—12 m postoperative (r value) | P value | |
---|---|---|
Age | − 0.668 | < 0.001 |
KOOS baseline | ||
Stiffness | − 0.565 | < 0.001 |
Function | − 0.514 | < 0.001 |
Pain | − 0.451 | < 0.001 |
KOOS 6 months postoperative | ||
Stiffness | − 0.590 | < 0.001 |
Function | − 0.623 | < 0.001 |
Pain | − 0.542 | < 0.001 |
KOOS 12 months postoperative | ||
Stiffness | − 0.839 | < 0.001 |
Function | − 0.763 | < 0.001 |
Pain | − 0.625 | < 0.001 |
Oxford knee score—12 m postoperative* Median (interquartile range) | P value | |
---|---|---|
Sex | ||
Male | 43.0 (36.0–0.43) | 0.307 |
Female | 43.0 (37.0–44.0) | |
Hypertension | ||
Yes | 41.0 (34.5–0.43) | 0.019 |
No | 43.0 (39.0–44.0) | |
Diabetes | ||
Yes | 36.0 (36.0–43.0) | 0.010 |
No | 43.0 m (39.5–43.5) | |
Previous operation | ||
Yes | 43.0 (36.0–43.0) | 0.326 |
No | 43.0 (37.0–44.0) |
Unstandardized B | Standard error | P value | |
---|---|---|---|
Age | − .260 | .049 | 0.000 |
Hypertension | 1.297 | .727 | .078 |
DM | 1.360 | .895 | .132 |
KOOS stiffness baseline | − 2.784 | .692 | 0.000 |
KOOS pain total baseline | − .501 | .392 | .204 |
KOOS function total baseline | .168 | .763 | .826 |