Patient-Specific CT-Based Instrumentation versus Conventional Instrumentation in Total Knee Arthroplasty: A Prospective Randomized Controlled Study on Clinical Outcomes and In-Hospital Data
Table 3
Comparison of perioperative data.
Group I (PSI)
Group II (CI)
value
Mean ± SD
Min.–Max.
Mean ± SD
Min.–Max.
Tourniquet time (min)
34.0 ± 9.0
20.0–72.0
28.5 ± 5.2
21.0–52.0
0.98
Blood loss (mL)
850.0 ± 450.5
0.0–1920.0
1000.0 ± 502.1
0.0–2100.0
0.18
Hospital stay (days)
9.0 ± 3.8
6–35
9.0 ± 1.5
7–16
0.15
Femoral size
67.6 ± 4.7
60–80
65.6 ± 3.2
60–75
0.08
Tibial size
73.1 ± 6.5
63–87
74.5 ± 3.5
63–83
0.21
Insert thickness
10.5 ± 1.3
10–14
10.3 ± 1.5
10–16
0.69
PSI: patient-specific instrumentation, CI: conventional instrumentation, and SD: standard deviation.
