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. 2022 Sep 9;13(1):39-44.
doi: 10.2478/joeb-2022-0007. eCollection 2022 Jan.

Body Composition Changes in the Immediate Peri-operative Period Following Total Joint Arthroplasty

Michael C Marinier  1 , Ayobami S Ogunsola  1 , Jacob M Elkins  1
Affiliations

Body Composition Changes in the Immediate Peri-operative Period Following Total Joint Arthroplasty

Michael C Marinier et al. J Electr Bioimpedance. .

Abstract

Background: Bioimpedance analysis (BIA) is a readily available tool to assess body composition in a clinical setting. BIA has received little attention in orthopaedics and namely joint arthroplasty. This study aims to quantify changes in body composition in the immediate peri-operative period following total joint arthroplasty.

Methods: Adults scheduled for elective total joint arthroplasty were recruited to participate. Patients underwent BIA scans in the immediate peri-operative period: pre-operative on their day of surgery, post-operative day 0, and post-operative day 1.

Results: 67 patients were enrolled to undergo BIA scans. Mean age was 62.64 ± 10.28 years old, and 49.2% were females. The all-supine cohort exhibited a 0.36 ± 0.61 kg increase in dry lean mass (p < 0.001) and 1.30 ± 2.14 kg increase in lean body mass on postoperative day 0 (p < 0.001). Patients received to 1.16 ± 0.58 kg of fluid mass, on average.

Conclusion: BIA is a rapid, portable tool that allows for body composition analysis of an inpatient surgical population. This study demonstrated that BIA can detect net fluid changes and may approximate implant mass following total joint arthroplasty. This may aid surgeons in interpreting post-operative body composition changes.

Keywords: Bioimpedance; arthroplasty; body composition; post-surgical changes.

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Conflict of interest statement

Conflict of interest MCM and ASO do not have any conflicts of interest to disclose. JME receives research support from DePuy Synthes (Raynham, MA, U.S) and is an editor for Journal of Arthroplasty. These disclosures are not relevant to this study.

Figures

Figure 1
Figure 1
Comparison of means of change in dry lean mass (DLM) and procedure from the pre-operative scan on the day of surgery to postoperative day 0 (POD0) and day 1 (POD1) for total hip and knee arthroplasty. *Denotes standard deviation
Figure 2
Figure 2
Comparison of means of change in dry lean mass (DLM) and scanning position from the pre-operative scan on the day of surgery to post-operative day 0 (POD0) and day 1 (POD1). *Denotes standard deviation
See this image and copyright information in PMC

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