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Figure captions
325
326
Figure 1
327
Vanguard Posterior-Stabilized; Zimmer Biomet, Warsaw, IN, USA
328
329
24
Figure 1
Table 1
Exclusion criteria of the study
TKA: total knee arthroplasty
TKA for valgus deformity of the knee (femorotibial angle by long leg X-ray <
170°)
Simultaneous bilateral TKA
Patients who had surgery in the ipsilateral knee or hip (e.g., total hip
arthroplasty, high tibial osteotomy, fracture surgery, and hip osteotomy)
Patients with severe bony defect requiring bone graft or augmentation
Revision TKA
TKA using other prostheses (i.e., not Vanguard Posterior-Stabilized)
TKA not due to osteoarthritis or osteonecrosis (e.g., rheumatoid arthritis,
trauma, and tumour)
Patients with active knee joint infection
Patients who had postoperative rehabilitation with different protocols
Table 2
Results of Spearman's rank correlation coefficient between the preoperative data
and the knee flexion angle at three months after total knee arthroplasty
SD: standard deviation
Postoperative
knee
angle
flexion
Mean ± SD
Correlation
p-value
(range)
coefficient
(*: < 0.05)
.797
.001*
.223
.0332
.616
.007*
- .226
.325
- .009
.337
- .192
.403
.576
.012*
121.2 ± 7.2 °
(95 - 130)
Preoperative values
Knee flexion
124.8 ± 11.1 °
(90 - 140)
Knee extension
-7.6 ± 4.4 °
(-15 - 0)
Hip flexion
124.8 ± 11.1 °
(100 - 135)
Hip extension
7.6 ± 5.8 °
(-5 - 20)
Hip abduction
33.3 ± 6.4 °
(25 - 50)
Hip adduction
8.8 ± 5.2 °
(0 - 20)
Hip external rotation
24.3 ± 9.1 °
(5 - 45)
Hip internal rotation
27.4 ± 11.7 °
.128
.582
- .034
.780
.003
.989
.098
.672
.342
.130
(5 - 45)
Age
74.4 ± 6.7 years
(62 - 83)
Body Mass Index
26.7 ± 2.8 kg/m2
(22.3 - 32.8)
Serum albumin
4.0 ± 0.3 g/dl
(3.5 - 4.7)
HbA1c
5.7 ± 0.4 %
(5.1 - 6.6)
Kellgren-Lawrence grade
III: 1, IV: 20
.038
.871
Knee extension strength
14.3 ± 30.3 N/kg
.295
.194
178.5 ± 5.0 °
- .185
.423
Femorotibial angle
(170 - 186)
...