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CompletedNCT05611398Updated Nov 10, 2022

Lactate Monitoring in Traumatic Long Bone Fractures Requiring Emergent Surgical Intervention

An observational study in Lactate Blood Increase, Trauma Blunt and Trauma, Secondary, sponsored by Arrowhead Regional Medical Center. Completed at 1 site in United States. Per ClinicalTrials.gov, last updated 2022-11-10.

Sponsored by Arrowhead Regional Medical Center · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
164
Sex
All
01

Study summary

Serum lactate has been utilized as a standard in guiding management of orthopedic injuries. Elevated preoperative lactate has been associated with a higher likelihood of postoperative complications. However, lactate's role in guiding operative timing in non-critical long-bone fractures has not been previously explored. This study investigates lactate's role in guiding surgical timing and predicting complications secondary to delayed definitive correction in non-critical long-bone fractures with Injury Severity Score \<16.

Read the detailed description

Trauma is among the leading causes of death, disability, and hospitalizations each year worldwide. The majority of traumatic injuries are orthopedic in nature, making up nearly one million hospital encounters each year. According to the Center for Disease Control and Prevention, fractures are among the top 20 first-line diagnosis presenting to the emergency department. In recent years, the epidemiology of long bone fractures has been changing, with an increased incidence of fragility fractures in the elderly and high energy injuries affecting young adults. Fall-related fractures account for 61% of emergency orthopedic surgical procedures. Management of these orthopedic fractures is complex, and certain predictors such as lactate have been suggested to play a role in outcomes.

In the setting of trauma, the metabolic response of insufficient tissue perfusion is anaerobic glycolysis, with serum lactate as the final byproduct. Serum lactate serves as a circulating biomarker for organ oxygen supply and demand mismatch and is often used as a surrogate for tissue hypoxia. Normal blood lactate levels range from 0.5 to 2.2 mmol/L, with some variability in the upper limitation. Studies show early lactate clearance may be an important and independent prognostic variable in guiding management protocol for the resuscitation of trauma patients. Furthermore, several studies have presented more evidence that lactate levels can be considered a sensitive marker for patients in shock and during resuscitation with strong correlation with morbidity and mortality levels.

The goal of this study is to further investigate the role of serum lactate levels in guiding surgical timing and complications resulting from delay to the definitive surgical intervention in noncritical, traumatic patients with sustained long bone fractures.

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Conditions studied

  • Lactate Blood Increase
  • Trauma Blunt
  • Trauma, Secondary
  • Injury Traumatic
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In context

Hyperlactatemia

50 studies on the registry are indexed under Hyperlactatemia; 7 are open to participants now.

This study's enrollment of 164 is above the median of 136 across 17 observational studies indexed under Hyperlactatemia.

Browse Hyperlactatemia studies →

Lead sponsor

Arrowhead Regional Medical Center is the lead sponsor of 15 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

This study was completed at the Arrowhead Regional Medical Center (ARMC) in San Bernardino County, California. The ARMC is a 456-bed acute-care teaching facility and ACS-verified level I trauma center. The ARMC emergency department (ED) is one of the busiest in the state of California with more than 100,000 visits and over 3,000 adult trauma cases annually.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • All patients aged 18 years or higher with long bone fractures with Injury Severity Score \<16

Exclusion criteria

Exclusion Criteria:

  • Non-long bone fracture surgeries performed within the first 72 hours
  • Patients who underwent external fixation prior to surgery
  • Patients with inconsistent or incomplete chart data Patients with polytrauma and life-threatening injuries.
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
164 participants (actual)
Patient registry
No

Groups and cohorts

  • Lactate Level Under 2 mmol/L

    Patients with a lactate level below 2

    Procedure: Orthopedic Surgery

  • Lactate Level Over 2 mmol/L

    Patients with a lactate level above 2

    Procedure: Orthopedic Surgery

Interventions

  • ProcedureOrthopedic Surgery

    A complete retrospective chart review was performed for all the patients' records and included all patients aged 18 years or higher who presented to Arrowhead Regional Medical Center with long bone fractures with Injury Severity Score \<16 and their repair and lactate levels at the time of surgery

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What researchers measure

Primary outcomes

  1. Preoperative lactate levels

    Preoperative lactate levels were defined as the first measured lactate level on admission of an individual who presented as a trauma patient.

    Time frame: The estimated period of time over which preoperative lactate levels are measured occur in the initial 2 hours aft

  2. Time to surgery from admission

    The time that elapsed from admission to the hospital until surgery occurred

    Time frame: Time to surgery from admission in the hospital is defined as the event until initial orthopedic surgery occurred after admission. The time frame of measurement was 28 days until the event occurred.

  3. Intraoperative complications

    Incidence of known adverse events associated with orthopedic operation

    Time frame: 28 days

  4. Length of total hospital stay

    The time spent hospitalized in days.

    Time frame: Length of total hospital stay from admission in the hospital is defined as the time frame between admission and discharge. The time frame of collection until the event occurred was 180 days.

  5. Discharge disposition

    Once discharge was initiated did the individual get discharged home, skilled nursing facility, acute care facility.

    Time frame: Time frame of collection until the event occurred was 180 days.

07

Study locations

1 site
  • Arrowhead Regional Medical Center
    Colton, California 92324, United States
08

References and documents

Publications

  • Jarman MP, Weaver MJ, Haider AH, Salim A, Harris MB. The National Burden of Orthopedic Injury: Cross-Sectional Estimates for Trauma System Planning and Optimization. J Surg Res. 2020 May;249:197-204. doi: 10.1016/j.jss.2019.12.023. Epub 2020 Jan 25. PubMed 31991329 ↗
  • Frouzan A, Masoumi K, Delirroyfard A, Mazdaie B, Bagherzadegan E. Diagnostic accuracy of ultrasound in upper and lower extremity long bone fractures of emergency department trauma patients. Electron Physician. 2017 Aug 1;9(8):5092-5097. doi: 10.19082/5092. eCollection 2017 Aug. PubMed 28979747 ↗
  • Ekegren CL, Edwards ER, de Steiger R, Gabbe BJ. Incidence, Costs and Predictors of Non-Union, Delayed Union and Mal-Union Following Long Bone Fracture. Int J Environ Res Public Health. 2018 Dec 13;15(12):2845. doi: 10.3390/ijerph15122845. PubMed 30551632 ↗
  • Bakker J, Gris P, Coffernils M, Kahn RJ, Vincent JL. Serial blood lactate levels can predict the development of multiple organ failure following septic shock. Am J Surg. 1996 Feb;171(2):221-6. doi: 10.1016/S0002-9610(97)89552-9. PubMed 8619454 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 10, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05611398
Lead sponsor
Arrowhead Regional Medical Center
Responsible party
Sponsor
First posted
Nov 10, 2022
Start date
Jan 1, 2021
Primary completion
Jan 1, 2022
Completion
Jan 1, 2022
Last update
Nov 10, 2022

Study contacts

Aldin Malkoc, MD
study chair · Arrowhead Regional Medical Center
Michael Neeki, DO
principal investigator · Arrowhead Regional Medical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Nov 2022. You cannot join it, but the record below documents what was studied.

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