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

Michael C. Marinier
Michael C. Marinier
, 
Ayobami S. Ogunsola
Ayobami S. Ogunsola
 and 
Jacob M. Elkins
Jacob M. Elkins
   | Dec 31, 2023
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Published Online: Dec 31, 2023
Page range: 60 - 65
Received: Aug 08, 2023
DOI: https://doi.org/10.2478/joeb-2023-0008
Keywords
© 2023 Michael C. Marinier et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

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 = 695 N or Mean (SD) Percent
Gender
   Males 332 47.8
   Females 363 52.2
Age, Yr 61 (12.94) -
BMI, kg/m2 33.93 (8.3) -
Bioimpedance Analysis Measurements N or Mean (SD) Percent (SD)
Skeletal Muscle Mass, kg
   Male 38.61 (6.60) -
   Female 26.74 (5.01) -
Appendicular Skeletal Muscle Index, kg/m2
   Male 9.38 (1.17) -
   Female 7.55 (1.32) -
Phase Angle, Degrees 4.82 (0.88) -
Extracellular Edema, % - 39.4 (1.2)
Dry Lean Mass, kg 38.61 (3.63) -
Lean Body Mass, kg 58.71 (14.06) -
Visceral Fat Area, cm2 184.24 (73.64) -
Body Fat Mass (±SD), g 39.21 (18.67) -
Laboratory Measurements N 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 Outcomes N or Mean (SD) Percent
Mental Health Score 43.19 (14.67) -
Physical Health Score 37.50 (12.22) -
General Health Score 3.07 (0.83) -

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

Phase Angle Extracellular Edema
Variable Correlation Coefficients P-value Correlation Coefficients P-value
Age -0.55 <.0001* 0.50 <.0001*
BMI 0.05 0.204 0.26 <.0001*
Extracellular Edema -0.79 <.0001* - -
Skeletal Muscle Mass 0.48 <.0001* -0.08 0.029*
Dry Lean Mass 0.47 <.0001* -0.08 0.044*
Lean Body Mass 0.43 <.0001* -0.02 0.653
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 -0.09 0.09 -0.12 0.021*
Mental Health Score -0.02 0.71 -0.00 0.941
General Health Score 0.12 0.01* -0.20 <.0001*
Serum Calcium -0.01 0.76 -0.06 0.185
Serum Creatinine 0.03 0.69 0.07 0.149
Serum Total Protein 0.26 <.0001* -0.23 <.0001*
Serum Albumin 0.34 <.0001* -0.37 <.0001*
Blood Hemoglobin 0.33 <.0001* 0.15 0.04*
eISSN:
1891-5469
Language:
English
Publication timeframe:
Volume Open
Journal Subjects:
Engineering, Bioengineering and Biomedical Engineering, Biomedical Electronics, Life Sciences, Biophysics, Medicine, Biomedical Engineering, Physics, Spectroscopy and Metrology
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