Table 1 Demographics of patients included in the study
From: Learning curve of Persona Partial Knee (PPK) arthroplasty: a clinical trial
Variable | Value |
|---|---|
Year | |
2018 | 2 (1.6%) |
2019 | 21 (16.8%) |
2020 | 43 (34.4%) |
2021 | 59 (47.2%) |
Sex | |
F | 74 (59.2%) |
M | 51 (40.8%) |
Age [mean ± SD] | 70.10 ± 9.48 |
BMI [mean ± SD] | 27.76 ± 4.23 |
Side | |
Right | 61 (48.8%) |
Left | 64 (51.2%) |
Tibial size | |
C | 2 (1.6%) |
D | 27 (21.6%) |
E | 38 (30.4%) |
F | 19 (15.2%) |
G | 19 (15.2%) |
H | 14 (11.2%) |
J | 6 (4.8%) |
Femoral size | |
1 | 3 (2.4%) |
2 | 13 (10.4%) |
3 | 29 (23.2%) |
4 | 32 (25.6%) |
5 | 26 (20.8%) |
6 | 14 (11.2%) |
7 | 8 (6.4%) |
Surgical time (minutes) | 47.27 ± 9.71 |
Tibial angle (°) | -1.38 ± 1.95 |
Femoral angle (°) | 0.23 ± 2.50 |
Tibial slope (°) | 4.48 ± 2.11 |
Anterior protrusion (mm) | 0.05 ± 0.44 |
Posterior protrusion (mm) | -0.15 ± 0.74 |
Medial protrusion (mm) | -0.02 ± 0.76 |
Bearing (thickness) | 8.38 ± 0.68 |
Intact tibial spine | |
No | 1 (0.8%) |
Yes | 124 (99.2%) |
Cortex perforation | |
No | 122 (97.6%) |
Yes | 3 (2.4%) |