Real-Time Muscle Pressure Measurements in Patients at Risk for Acute Compartment Syndrome

Real-Time Muscle Pressure Measurements in Patients at Risk for Acute Compartment Syndrome: A Prospective Cohort Study With Historical Control

The purpose of this trial is to conduct a pilot study that will aid in the design of an evaluation of the clinical benefit of MY01, an FDA cleared device, that allows continuous monitoring of intracompartmental muscle pressure in patients at risk for developing acute compartment syndrome. MY01 has previously been successfully tested on animal and Human cadaver Acute Compartment Syndrome models within the RI MUHC through Department of Defense research Grant (Combat Casualty Care Research Program (CCCRP). This trial is supported by the same grant, as the next phase of the overall project.

This is a multi-center, non-randomized, historically controlled, prospective trial of the MY01 device. A cohort of 50 participants will be prospectively enrolled with two weeks follow up to document clinical benefit of the device. Results from this study will be used to inform the design of a larger study designed to demonstrate the clinical benefit of the MY01 device in the early diagnosis of ACS.

The role of each organisation within the trial are detailed below:

• Research Institute of McGill University Health Centre (RI MUHC): study coordination and data analysis (no recruitment activity will take place in the MUHC).
• Hennepin Healthcare: participants recruitment
• Vanderbilt University Medical Centre: participants recruitment

Study Overview

• Status: Recruiting
• Conditions: Acute Compartment Syndrome
• Intervention / Treatment: Device: Measurement of the Intra-Compartmental Pressure with the MY01 device

Detailed Description

Research Plan

The purpose of this trial is to conduct a pilot study that will inform the design of a trial to evaluate the clinical benefit of MY01, a FDA cleared device that allows continuous monitoring of intracompartmental muscle pressure in patients at risk for developing acute compartment syndrome. The MY01 device is a digitally connected device with a companion mobile app designed to continuously monitor intracompartmental pressure, outputting the results to the mobile app, where clinicians can track the pressure in real time.

There are several goals of this study. Fifty patients with high-energy injuries to the proximal leg and tibial shaft will be prospectively studied and compared to a cohort of historical controls. We want to evaluate the feasibility of collecting data related to the diagnosis of ACS and the measurement of its associated complications. We will also use this data to attempt to assign a modified Boyers grade to a cohort of prospectively enrolled patients and historical controls. Clinical validation of the modified Boyers grade will represent a large step forward in compartment syndrome research, since it will bring an objective assessment of severity to the diagnosis of acute compartment syndrome.

These control patients are to be obtained from several cohorts of patients:

1- Data collected for 3 Retrospective studies on tibial fractures and dislocations resulting in acute compartment syndrome completed in Montreal General Hospital, Vanderbilt University Health Centre and Hennepin Healthcare. The data received from those existing studies will be de-identified.

2 - Patients treated in the PACS study previously funded by DOD and run by METRC.

3- Trauma Quality Programs Participant Use File (TQP) data.

Another goal is to assess the reoperation rates, for limb salvage or amputation among patients that undergo continuous monitoring of ICP using the MY01 monitor relative to a cohort of historical controls who did not receive continuous monitoring.

Primary Research Outcome

Assess the reoperation rate and number of operative procedures for all surgically managed acute compartment syndrome patients.

Secondary Research Outcomes

There are numerous outcomes that are related to the severity of ACS when it is diagnosed. This study will also assess our ability to identify the following secondary outcomes among a cohort of prospectively enrolled patients relative to a cohort of historical controls.

1. Comparison of grades of ACS to the historic controls.
2. Increased proportion of lower ACS outcome grades (Grades 1,2 as per grade)
3. Reduction in time to diagnosis of ACS
4. Improved short-term visual analog pain scores (VAS) for pain in affected limb
5. Reduction in inpatient days
6. Reduction in Skin Grafts
7. Reduction in Major Myectomy
8. Reduction in Anesthesia Time for patients undergoing fasciotomy
9. Clinical ease with which the new compartment pressure monitor was inserted into a muscle compartment, per satisfaction survey.

• Study Type: Interventional
• Enrollment (Anticipated): 50
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Anne Mathiot; Phone Number: 5149341934; Email: anne.mathiot@muhc.mcgill.ca

Study Locations

• United States
  • Minnesota
    • Minneapolis, Minnesota, United States, 55414
      • Not yet recruiting
      • Hennepin County Medical Center - Orthopaedic Research
      • Contact: Jerald Westberg; Phone Number: 612-873-4634; Email: jerald.westberg@hcmed.org
      • Principal Investigator: Andrew H Schmidt, MD
  • Tennessee
    • Nashville, Tennessee, United States, 37232
      • Recruiting
      • Vanderbilt University Medical Center
      • Contact: Karen M Trochez; Phone Number: 615-936-0347; Email: karen.m.trochez@vumc.org
      • Principal Investigator: William T Obremskey, MD

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Direct admission to hospital from scene of injury, or if transferred, admitted no more than 12 hours from injury
• High-energy fracture of the tibial plateau (bicondylar or medial fracture - dislocation)
• High energy displaced tibial diaphysis (highly comminuted or segmental fracture, or proximal third of tibia (e.g. GSW to the proximal fibula)) that is felt by the surgeon to have a likelihood of elevated ICP and risk of ACS.

Exclusion Criteria:

1. Frankly contaminated or infected wounds or fractures.
2. Clinical suspicion of acute compartment syndrome requiring urgent fasciotomy at time of presentation to study center.
3. Monitoring could not be initiated within 12 hours of presentation
4. Acute or pre-existing neuropathy in the study limb.
5. Patient is pregnant
6. Patient is a prisoner/incarcerated

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Experimental arm (only one arm); Only one arm, the participants will all received the device to measure Intra-compartmental pressure after consenting to study participation.

Device: Measurement of the Intra-Compartmental Pressure with the MY01 device; All Participants will be monitored for clinical signs of symptoms of ACS, including the 7 Ps at a minimum of every 4-6 hours. The Intra-Compartmental Pressure of the anterior compartment of the leg will be monitored with the MY01 device. The device should be inserted five centimeters (5 cm) from the fracture, if possible, in the muscle belly. The affected limb will then be splinted in a standard U-slab with no pressure on the monitored device.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Reoperation rate (number of re-operation)	Assess the reoperation rate for all surgically managed acute compartment syndrome patients following the original fasciotomy.	6 weeks
Number of operative procedures	Number of operative procedures for all surgically managed acute compartment syndrome patients.	6 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Comparison of grades of ACS to the historic controls.	Comparison of grades of ACS to the historic controls.	6 weeks
Changed proportion of lower ACS outcome grades	changed proportion of lower ACS outcome grades (Grades 1,2 as per grade)	6 weeks
Change in time to diagnosis of ACS		6 weeks
Change in short-term visual analog pain scores (VAS) for pain in affected limb		6 weeks
Change in inpatient days		6 weeks
Change in Skin Grafts number		6 weeks
change in Major Myectomy number		6 weeks
change in Anesthesia Time for patients undergoing fasciotomy		6 weeks
Clinician satisfaction survey (percentage)	Clinical ease with which the new compartment pressure monitor was inserted into a muscle compartment, per satisfaction survey.	6 weeks

Collaborators and Investigators

• Sponsor: McGill University Health Centre/Research Institute of the McGill University Health Centre
• Collaborators: United States Department of Defense; Vanderbilt University Medical Center; Hennepin Healthcare Research Institute
• Investigators: Principal Investigator: Mitchell Bernstein, Dr, Research Institute of McGill University Health Centre (RI MUHC)

Publications and helpful links

General Publications

• Via AG, Oliva F, Spoliti M, Maffulli N. Acute compartment syndrome. Muscles Ligaments Tendons J. 2015 Mar 27;5(1):18-22. eCollection 2015 Jan-Mar.
• Shadgan B, Menon M, Sanders D, Berry G, Martin C Jr, Duffy P, Stephen D, O'Brien PJ. Current thinking about acute compartment syndrome of the lower extremity. Can J Surg. 2010 Oct;53(5):329-34.
• McQueen MM, Gaston P, Court-Brown CM. Acute compartment syndrome. Who is at risk? J Bone Joint Surg Br. 2000 Mar;82(2):200-3.
• Collinge CA, Attum B, Lebus GF, Tornetta P 3rd, Obremskey W, Ahn J, Mirick G, Schmidt A, Spitler C, Coles C, Krause P; Orthopaedic Trauma Association's Evidence-based Quality and Value Committee. Acute Compartment Syndrome: An Expert Survey of Orthopaedic Trauma Association Members. J Orthop Trauma. 2018 May;32(5):e181-e184. doi: 10.1097/BOT.0000000000001128.
• Schmidt AH, Bosse MJ, Frey KP, O'Toole RV, Stinner DJ, Scharfstein DO, Zipunnikov V, MacKenzie EJ; METRC. Predicting Acute Compartment Syndrome (PACS): The Role of Continuous Monitoring. J Orthop Trauma. 2017 Apr;31 Suppl 1:S40-S47. doi: 10.1097/BOT.0000000000000796.
• Shadgan B, Pereira G, Menon M, Jafari S, Darlene Reid W, O'Brien PJ. Risk factors for acute compartment syndrome of the leg associated with tibial diaphyseal fractures in adults. J Orthop Traumatol. 2015 Sep;16(3):185-92. doi: 10.1007/s10195-014-0330-y. Epub 2014 Dec 28.
• McQueen MM, Court-Brown CM. Compartment monitoring in tibial fractures. The pressure threshold for decompression. J Bone Joint Surg Br. 1996 Jan;78(1):99-104.

Study record dates

Study Major Dates

• Study Start (Actual): March 18, 2022
• Primary Completion (Anticipated): February 15, 2023
• Study Completion (Anticipated): March 31, 2023

Study Registration Dates

• First Submitted: December 8, 2020
• First Submitted That Met QC Criteria: December 15, 2020
• First Posted (Actual): December 17, 2020

Study Record Updates

• Last Update Posted (Actual): April 12, 2022
• Last Update Submitted That Met QC Criteria: April 4, 2022
• Last Verified: April 1, 2022

More Information

Terms related to this study

• Keywords: Acute compartment syndrome, minimally invasive, sensor, intracompartmental muscle pressure
• Additional Relevant MeSH Terms: Pathologic Processes; Cardiovascular Diseases; Vascular Diseases; Disease; Musculoskeletal Diseases; Muscular Diseases; Syndrome; Compartment Syndromes
• Other Study ID Numbers: 2021-6655

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No
• IPD Plan Description: No IPD will be shared to other researchers

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: Yes
• product manufactured in and exported from the U.S.: No