Changes in Resting Metabolic Rate Following Orthopedic Surgery

NCT ID: NCT06107959

Last Updated: 2025-07-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-10-10

Study Completion Date

2026-12-31

Brief Summary

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This project is intended to determine the magnitude and duration of RMR changes in patients receiving orthopedic surgery. The result will help to guide postoperative nutrition recommendations in patients receiving orthopedic surgery.

Detailed Description

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Surgery produces a catabolic response in the body that shifts metabolism from glucose to fat and protein. Despite no studies examining ACLR, studies of other orthopedic surgeries demonstrate increased postoperative energy expenditure, as well as a shift to beta-oxidation. Additionally, in most patients, these changes reverted to baseline within six weeks, although a subset of patients did not return to baseline until beyond 12 weeks.

This project will improve our understanding of magnitude and duration of RMR changes following orthopedic surgery, and the subsequent perioperative dietary suggestions that should be made to improve patient outcomes. Currently, postoperative dietary suggestions are not surgery nor patient specific. Determining how orthopedic surgery effects RMR will help to personalize perioperative treatment, rehabilitation, and recovery.

Better understanding the change in RMR following orthopedic surgery and implementing more accurate dietary modifications will help to ensure positive outcomes and control of infection following orthopedic surgery.

Conditions

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Metabolism; Disorder, Postprocedural Resting Metabolic Rate Post Operative Nutrition

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Male

50 male subjects undergoing orthopedic surgery.

Pre-surgical nutrition, hydration, RMR, and body composition assessments

Intervention Type OTHER

Urine sample, InBody device platform, Metabolic cart with hood to collect RMR.

Post-surgical nutrition, hydration, RMR and body composition assessments

Intervention Type OTHER

Same as pre-surgical tests at 1 week, 3 weeks, 6 weeks, and 12 weeks follow up time points.

Female

50 female subjects undergoing orthopedic surgery

Pre-surgical nutrition, hydration, RMR, and body composition assessments

Intervention Type OTHER

Urine sample, InBody device platform, Metabolic cart with hood to collect RMR.

Post-surgical nutrition, hydration, RMR and body composition assessments

Intervention Type OTHER

Same as pre-surgical tests at 1 week, 3 weeks, 6 weeks, and 12 weeks follow up time points.

Interventions

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Pre-surgical nutrition, hydration, RMR, and body composition assessments

Urine sample, InBody device platform, Metabolic cart with hood to collect RMR.

Intervention Type OTHER

Post-surgical nutrition, hydration, RMR and body composition assessments

Same as pre-surgical tests at 1 week, 3 weeks, 6 weeks, and 12 weeks follow up time points.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Any individual over 15 undergoing an orthopedic surgery.

Exclusion Criteria

* Pregnant female
* \< 15 years old
Minimum Eligible Age

15 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Kansas Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Lisa Vopat, MD

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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The University of Kansas Medical Center

Kansas City, Kansas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Sharon Bradshaw

Role: CONTACT

913-945-6289

Facility Contacts

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Sharon Bradshaw

Role: primary

References

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Braga M, Baccari P, Scaccabarozzi S, Fiacco E, Radaelli G, Gallus G, DiPalo S, DiCarlo V, Cristallo M. Prognostic role of preoperative nutritional and immunological assessment in the surgical patient. JPEN J Parenter Enteral Nutr. 1988 Mar-Apr;12(2):138-42. doi: 10.1177/0148607188012002138.

Reference Type BACKGROUND
PMID: 3283387 (View on PubMed)

Hu SS, Fontaine F, Kelly B, Bradford DS. Nutritional depletion in staged spinal reconstructive surgery. The effect of total parenteral nutrition. Spine (Phila Pa 1976). 1998 Jun 15;23(12):1401-5. doi: 10.1097/00007632-199806150-00019.

Reference Type BACKGROUND
PMID: 9654632 (View on PubMed)

Lenke LG, Bridwell KH, Blanke K, Baldus C. Prospective analysis of nutritional status normalization after spinal reconstructive surgery. Spine (Phila Pa 1976). 1995 Jun 15;20(12):1359-67.

Reference Type BACKGROUND
PMID: 7676333 (View on PubMed)

Ljungqvist O, Soop M, Hedstrom M. Why metabolism matters in elective orthopedic surgery: a review. Acta Orthop. 2007 Oct;78(5):610-5. doi: 10.1080/17453670710014293. No abstract available.

Reference Type BACKGROUND
PMID: 17966019 (View on PubMed)

Malone DL, Genuit T, Tracy JK, Gannon C, Napolitano LM. Surgical site infections: reanalysis of risk factors. J Surg Res. 2002 Mar;103(1):89-95. doi: 10.1006/jsre.2001.6343.

Reference Type BACKGROUND
PMID: 11855922 (View on PubMed)

McMulkin ML, Ferguson RL. Resting energy expenditure and respiratory quotient in adolescents following spinal fusion surgery. Spine (Phila Pa 1976). 2004 Aug 15;29(16):1831-5. doi: 10.1097/01.brs.0000134564.24874.10.

Reference Type BACKGROUND
PMID: 15303030 (View on PubMed)

Other Identifiers

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STUDY00150689

Identifier Type: -

Identifier Source: org_study_id

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