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Whole-body phase angle correlates with pre-operative markers in total joint arthroplasty Cover

Whole-body phase angle correlates with pre-operative markers in total joint arthroplasty

Journal of Electrical Bioimpedance
Volume 14 (2023): Issue 1 (January 2023)
By: Michael C. Marinier,  Ayobami S. Ogunsola and  Jacob M. Elkins  
Open Access
|Dec 2023

Figures & Tables

Figure 1:

Scatter plot demonstrating serum albumin relative to ϕ. Serum albumin, a common marker of nutrition utilized in joint arthroplasty, correlated with significantly with ϕ (r = 0.34, p < 0.001).
Scatter plot demonstrating serum albumin relative to ϕ. Serum albumin, a common marker of nutrition utilized in joint arthroplasty, correlated with significantly with ϕ (r = 0.34, p < 0.001).

Figure 2:

Scatter plot demonstrating BMI relative to ϕ. BMI has long been used as a pre-operative predictor of post-arthroplasty complications, but it did not demonstrate a significant correlation with ϕ (r = 0.05, p = 0.204).
Scatter plot demonstrating BMI relative to ϕ. BMI has long been used as a pre-operative predictor of post-arthroplasty complications, but it did not demonstrate a significant correlation with ϕ (r = 0.05, p = 0.204).

Demographics_

Demography of Study Participants N = 695N or Mean (SD)Percent
Gender
   Males33247.8
   Females36352.2
Age, Yr61 (12.94)-
BMI, kg/m233.93 (8.3)-
Bioimpedance Analysis MeasurementsN or Mean (SD)Percent (SD)
Skeletal Muscle Mass, kg
   Male38.61 (6.60)-
   Female26.74 (5.01)-
Appendicular Skeletal Muscle Index, kg/m2
   Male9.38 (1.17)-
   Female7.55 (1.32)-
Phase Angle, Degrees4.82 (0.88)-
Extracellular Edema, %-39.4 (1.2)
Dry Lean Mass, kg38.61 (3.63)-
Lean Body Mass, kg58.71 (14.06)-
Visceral Fat Area, cm2184.24 (73.64)-
Body Fat Mass (±SD), g39.21 (18.67)-
Laboratory MeasurementsN or Mean (SD)Percent
Hemoglobin (g/dl)13.3 (1.73)-
Serum Total Protein (g/dl)7.04 (0.54)-
Serum Albumin (g/dl)4.30 (0.41)-
Serum Creatinine (mg/dl)0.94 (0.36)-
Serum Calcium (mg/dl)9.21 (0.53)-
Blood Urea Nitrogen (mg/dl)17.19 (8.21)-
Patient Reported OutcomesN or Mean (SD)Percent
Mental Health Score43.19 (14.67)-
Physical Health Score37.50 (12.22)-
General Health Score3.07 (0.83)-

Pearson Correlation between Phase Angle (left), Extracellular Edema (right), and other study participants characteristics_

Phase AngleExtracellular Edema
VariableCorrelation CoefficientsP-valueCorrelation CoefficientsP-value
Age-0.55<.0001*0.50<.0001*
BMI0.050.2040.26<.0001*
Extracellular Edema-0.79<.0001*--
Skeletal Muscle Mass0.48<.0001*-0.080.029*
Dry Lean Mass0.47<.0001*-0.080.044*
Lean Body Mass0.43<.0001*-0.020.653
Visceral Fat Area-0.16<.0001*0.26<.0001*
Skeletal Muscle Index**0.39<.0001*0.14<.001*
Percent Body Fat-0.31<.0001*0.31<.0001*
Body Fat Mass-0.11<.001*0.32<.0001*
Physical Health Score-0.090.09-0.120.021*
Mental Health Score-0.020.71-0.000.941
General Health Score0.120.01*-0.20<.0001*
Serum Calcium-0.010.76-0.060.185
Serum Creatinine0.030.690.070.149
Serum Total Protein0.26<.0001*-0.23<.0001*
Serum Albumin0.34<.0001*-0.37<.0001*
Blood Hemoglobin0.33<.0001*0.150.04*
DOI: https://doi.org/10.2478/joeb-2023-0008 | Journal eISSN: 1891-5469
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Language: English
Page range: 60 - 65
Submitted on: Aug 8, 2023
Published on: Dec 31, 2023
Published by: University of Oslo
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
Bioimpedance,
whole body phase angle,
arthroplasty,
edema
Related subjects:
Engineering,
Bioengineering and biomedical engineering,
Biomedical electronics,
Life sciences,
Biophysics,
Medicine,
Biomedical engineering,
Physics,
Spectroscopy and metrology

© 2023 Michael C. Marinier, Ayobami S. Ogunsola, Jacob M. Elkins, published by University of Oslo
This work is licensed under the Creative Commons Attribution 4.0 License.

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