COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC:

Get the latest research information from NIH: Menu

High Resolution IR Imaging for Diagnosis in the Acute Limping Child - ThermLimp (Thermlimp)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03312348
Recruitment Status : Completed
First Posted : October 17, 2017
Results First Posted : April 24, 2019
Last Update Posted : October 4, 2019
Information provided by (Responsible Party):
Sheffield Children's NHS Foundation Trust

Brief Summary:
A variety of different diseases may cause a limp in a child, and in younger children it is particularly challenging to isolate the area affected. Children of this age group are unable to identify a specific region of pain, so clinical examination and parental interpretation is the only method of localising the area of discomfort. Potential problems that may affect children include inflammation, fractures, infection, juvenile arthritis or movement in the growth plate in the hip, among other diseases. Aside from an obvious source of injury, it is challenging for a clinician to distinguish between these different potential causes or the area of the problem without repeated visits, non-specific blood tests and the use of x-ray imaging: a form of radiation that carries with it a small risk of carcinogenic effect. Once a region of the lower limb is identified, an x-ray image of the affected area is often taken; however, it is not possible to image the entire leg, so the importance of the initial examination by a clinician is evident. The aim of this research project is to assess the potential of high resolution infrared (IR) imaging technology in the identification of a focus for the cause of a limping child. The IR camera used for imaging is able to observe an entire limb, so the need to localise an area for imaging would be removed. In addition, if successful, infrared imaging could reduce the number of children exposed to x-ray radiation unnecessarily, whilst stream-lining medical practice by reducing the time to make a diagnosis along with unnecessary visits and tests. The investigators aim to explore whether non-invasive IR thermographic camera imaging assists with the clinical diagnosis in children presenting with an acute limp. This study represents a pilot evaluation as a test of concept.

Condition or disease Intervention/treatment Phase
Limping Device: Infrared imaging Not Applicable

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 30 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: High Resolution Infrared Thermographic Imaging as a Diagnostic Aid for Acute Undifferentiated Limp in Children.
Actual Study Start Date : January 2016
Actual Primary Completion Date : June 2016
Actual Study Completion Date : June 30, 2016

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Infrared Imaging undertaken
Infrared imaging of Region Of Interest in study participants
Device: Infrared imaging
Infrared image image acquisition of study participants

Primary Outcome Measures :
  1. Number of Participants for Which Thermal Imaging Technique Correctly Identified Area of Focus for a Limping Child [ Time Frame: 10 minutes ]
    Number of Participants for Which Thermal Imaging Technique Correctly Identified Area of Focus for a Limping Child - 25

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   9 Months to 16 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Children age 9 months -16 years old who attend the Emergency Department (ED) of the Sheffield Children's Hospital for an acute (less than 48 hours) limp. Inclusion is subject to both the patient and carer having read (or being read to in very young children) the information sheets and both the patient and carer consenting to participate.

Exclusion Criteria:

  • Children with multiple injuries (e.g. those involved in serious car accidents), or those who have difficulty understanding the nature of the study (e.g. non-native English speakers, those with disabilities impairing their understanding of the study etc.) will be excluded. Patients/carers in whom consent has not been obtained or refused will also be excluded.

Children who attend the ED with safeguarding concerns or in whom child protection suspicions arise during the consultation will be excluded. These children have a separate assessment process which would be significantly different to the study cohort.

Layout table for additonal information
Responsible Party: Sheffield Children's NHS Foundation Trust Identifier: NCT03312348    
Other Study ID Numbers: SCH-13-067C
First Posted: October 17, 2017    Key Record Dates
Results First Posted: April 24, 2019
Last Update Posted: October 4, 2019
Last Verified: October 2017