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The results of the paired t-test between changes in dry lean mass (DLM) and lean body mass (LBM) at different peri-operative time points. Separate analyses by positioning (supine and seated – left side; supine – right side) are included.
Supine and Seated N = 67
Mean (SD)
95% CL SD
t
P
Supine N = 47
Mean (SD)
95% CL SD
t
P
LBM (kg)
DOS to POD0
1.67 (2.35)
2.01, 2.83
5.81
<0.0001
DOS to POD0
1.30 (2.14)
1.78, 2.68
4.21
<0.001
DOS to POD1
1.82 (2.55)
2.18, 3.08
5.82
<0.0001
DOS to POD1
1.16 (2.19)
1.82, 2.74
3.67
<0.001
POD0 to POD1
0.15 (2.42)
2.06, 2.91
0.51
0.614
POD0 to POD1
-0.14 (2.51)
2.08, 3.14
-0.39
0.701
DLM (kg)
DOS to POD0
0.45 (0.67)
0.58, 0.81
5.53
<0.0001
DOS to POD0
0.36 (0.61
0.51, 0.76
4.08
<0.001
DOS to POD1
0.49 (0.72)
0.62, 0.87
5.53
<0.0001
DOS to POD1
0.32 (0.64)
0.53, 0.79
3.41
<0.001
POD0 to POD1
0.03 (0.70)
0.59, 0.84
0.38
0.705
POD0 to POD1
-0.04 (0.71)
0.59, 0.89
-0.42
0.679
The three most utilized metallic knee prostheses used during the study period. Note, femoral (F) and tibial (T) components were matched in all patients.
Rank (N)
Implant Brand and Model
Mean Size
1 (13)
MicroPort Evolution
F: 5.2; T: 5.2
2 (11)
DePuy Synthes Attune
F: 5.7; T: 5.0
3 (10)
Stryker Triathlon
F: 5.4; T: 4.9
Demography of patients and select pre-operative markers.
Variable (units)
Average (SD)
Age (years)
62.64 (10.28)
Male: Female (%)
50.8%: 49.2%
TKA: THA (%)
50.8%: 49.2%
Baseline BMI (kg/m2)
34.84 (7.56)
Baseline Weight (kg)
98.22 (25.81)
Baseline LBM (kg)
58.07 (14.41)
Baseline DLM (kg)
15.67 (3.67)
The three most commonly implanted metallic acetabular cups.
Rank (N)
Implant Brand and Model
Mean Size (mm)
1 (12)
Zimmer-Biomet G7
55.2
2 (9)
DePuy Synthes Pinnacle
54.7
3 (8)
MicroPort Proctyl Prime
55.0
The three most commonly implanted metallic femoral stem prostheses.