ClinicalTrials.gg
CompletedNCT05971745Updated Aug 22, 2024

Accuracy of Pediatric Emergency Medicine Providers in Diagnosing Hip Effusions Using Point of Care Ultrasound

An observational study in Hip Effusion, Septic Arthritis and Transient Synovitis, Hip, sponsored by Connecticut Children's Medical Center. Completed at 6 sites in 2 countries. Open to participants aged 1 Month to 18 Years. Per ClinicalTrials.gov, last updated 2024-08-22.

Sponsored by Connecticut Children's Medical Center · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
161
Ages
1 Month to 18 Years
Sex
All
01

Study summary

The purpose of this study is to determine if pediatric emergency medicine providers can accurately diagnose a hip effusion using point-of-care ultrasound (POCUS) compared to radiology ultrasound (RADUS).

Read the detailed description

The purpose of this study is to determine that the accuracy of trained pediatric emergency medicine providers to diagnose hip effusion using point-of-care ultrasound (POCUS) is non-inferior to the reference standard of radiology ultrasound (RADUS). Additionally, the investigators seek to compare how POCUS performs against other clinical tests or investigations for the diagnosis of septic arthritis. The investigators hypothesize that trained EM providers will be able to diagnose hip effusions with high (>90%) accuracy compared to studies conducted by the Department of Radiology.

02

Conditions studied

  • Hip Effusion
  • Septic Arthritis
  • Transient Synovitis, Hip

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Keywords

  • Point of Care Ultrasound
  • Hip Effusion
  • Pediatric Emergency Medicine
03

In context

Arthritis, Infectious

126 studies on the registry are indexed under Arthritis, Infectious; 25 are open to participants now.

This study's enrollment of 161 is above the median of 100 across 73 observational studies indexed under Arthritis, Infectious.

Browse Arthritis, Infectious studies →

Lead sponsor

Connecticut Children's Medical Center is the lead sponsor of 59 studies on the registry; 13 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 3 (60%) have results posted.

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

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Who can participate

Ages eligible
1 Month to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The target population are children 18 years and younger presenting to the Emergency Department at Connecticut Children's Medical Center with a chief complaint that necessitates hip ultrasonography as determined by the physician caring for the patient at the time of the visit. Those presenting during the study period of October 2019-December 2023 will be recruited. This is a multi-center, international study that will also be conducted in the Pediatric Emergency Departments at the following institutions: Connecticut Children's, Cohen Children's Medical Center, New York-Presbyterian / Columbia University Medical Center, Yale New Haven Hospital, Newark Beth Israel Medical Center, and Gold Coast Hospital (Queensland, Australia).

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

  • Age 18 years or younger
  • Clinical presentation necessitating hip ultrasonography as determined by the evaluating clinician
  • Study physician available at the time of presentation to ED
  • Patient or legal guardian provides consent

Exclusion criteria

Exclusion Criteria:

  • Children who present when a study physician is not available or those for whom consent is not given.
  • Children who have had hip ultrasound imaging prior to their ED visit. Children with prior hip/pelvis x-rays will not be excluded.
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
161 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. The presence or absence of a hip effusion.

    The presence or absence of an effusion as determined by the pediatric emergency medicine physician performing the point-of-care-ultrasound study on both the affected and unaffected sides (i.e. right hip and left hip).

    Time frame: From the time the point-of-care ultrasound is performed by the physician during the emergency department visit through study completion, average of 2 years.

  2. The presence of absence of a hip effusion.

    The presence or absence of an effusion as determined by the Radiologist on both the affected and unaffected sides.

    Time frame: From the time the radiologist reviews the ultrasound as performed by the radiology technician during the emergency department visit, through study completion, average of 2 years.

Secondary outcomes

  1. The size of the effusion.

    As measured by the pediatric emergency medicine provider in millimeters.

    Time frame: From the time the point-of-care ultrasound is performed by the physician during the emergency department visit to study completion, average of 2 years

  2. The location of the measurement of the effusion.

    Pediatric emergency medicine physicians will measure an effusion at two designated locations. One location is based off of current published literature whereas the second is to provide a comparison to determine if the exact location alters the final diagnosis (effusion or no effusion). Investigators will determine whether the location along the angle of the neck affects the measurement obtained when compared with the current standard practice of measuring fluid along the widest part of the femoral neck.

    Time frame: Upon chart review: between the time the measurement was obtained in the emergency department up to six weeks later when the chart is reviewed by primary investigator.

Other outcomes

  1. Number of point-of-care ultrasound studies performed by PEM providers that have a different final diagnosis when compared to radiology ultrasound.

    Investigators will compare the final diagnosis (hip effusion or no hip effusion) between point-of-care-ultrasound and radiology ultrasound to determine the number of discrepancies between the groups.

    Time frame: Upon chart review: between the time the measurement was obtained in the emergency department up to six weeks later when the chart is reviewed by primary investigator.

  2. Association between point-of-care ultrasound and Kocher score (0-4).

    Investigators will determine if the addition of ultrasonography results coupled with Kocher score (0-4; increased risk of septic arthritis with higher scores), which includes laboratory markers, increases the likelihood of septic arthritis.

    Time frame: Upon chart review: between the time the measurement was obtained in the emergency department up to six weeks later when the chart is reviewed by primary investigator.

07

Study locations

6 sites
  • Ruchika M Jones
    Hartford, Connecticut 06106, United States
  • Yale University
    New Haven, Connecticut 06550, United States
  • Newark Beth Israel Medical Center
    Newark, New Jersey 07112, United States
  • Cohen Children's Medical Center
    New Hyde Park, New York 11042, United States
  • Columbia University Medical Center
    New York, New York 10032, United States
  • Gold Coast Hospital and Health Service
    Southport, Queensland 4211, Australia
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References and documents

Publications

  • Caird MS, Flynn JM, Leung YL, Millman JE, D'Italia JG, Dormans JP. Factors distinguishing septic arthritis from transient synovitis of the hip in children. A prospective study. J Bone Joint Surg Am. 2006 Jun;88(6):1251-7. doi: 10.2106/JBJS.E.00216. PubMed 16757758 ↗
  • Kocher MS, Zurakowski D, Kasser JR. Differentiating between septic arthritis and transient synovitis of the hip in children: an evidence-based clinical prediction algorithm. J Bone Joint Surg Am. 1999 Dec;81(12):1662-70. doi: 10.2106/00004623-199912000-00002. PubMed 10608376 ↗
  • Klein DM, Barbera C, Gray ST, Spero CR, Perrier G, Teicher JL. Sensitivity of objective parameters in the diagnosis of pediatric septic hips. Clin Orthop Relat Res. 1997 May;(338):153-9. doi: 10.1097/00003086-199705000-00022. PubMed 9170376 ↗
  • Del Beccaro MA, Champoux AN, Bockers T, Mendelman PM. Septic arthritis versus transient synovitis of the hip: the value of screening laboratory tests. Ann Emerg Med. 1992 Dec;21(12):1418-22. doi: 10.1016/s0196-0644(05)80052-6. PubMed 1443834 ↗
  • Fabry G, Meire E. Septic arthritis of the hip in children: poor results after late and inadequate treatment. J Pediatr Orthop. 1983 Sep;3(4):461-6. doi: 10.1097/01241398-198309000-00008. PubMed 6630490 ↗
  • Lunseth PA, Heiple KG. Prognosis in septic arthritis of the hip in children. Clin Orthop Relat Res. 1979 Mar-Apr;(139):81-5. PubMed 455855 ↗
  • Hallel T, Salvati EA. Septic arthritis of the hip in infancy: end result study. Clin Orthop Relat Res. 1978 May;(132):115-28. PubMed 307996 ↗
  • Bennett OM, Namnyak SS. Acute septic arthritis of the hip joint in infancy and childhood. Clin Orthop Relat Res. 1992 Aug;(281):123-32. PubMed 1499198 ↗
  • Kocher MS, Mandiga R, Zurakowski D, Barnewolt C, Kasser JR. Validation of a clinical prediction rule for the differentiation between septic arthritis and transient synovitis of the hip in children. J Bone Joint Surg Am. 2004 Aug;86(8):1629-35. doi: 10.2106/00004623-200408000-00005. PubMed 15292409 ↗
  • Cruz AI Jr, Anari JB, Ramirez JM, Sankar WN, Baldwin KD. Distinguishing Pediatric Lyme Arthritis of the Hip from Transient Synovitis and Acute Bacterial Septic Arthritis: A Systematic Review and Meta-analysis. Cureus. 2018 Jan 25;10(1):e2112. doi: 10.7759/cureus.2112. PubMed 29581924 ↗
  • Plumb J, Mallin M, Bolte RG. The role of ultrasound in the emergency department evaluation of the acutely painful pediatric hip. Pediatr Emerg Care. 2015 Jan;31(1):54-8; quiz 59-61. doi: 10.1097/PEC.0000000000000332. PubMed 25560622 ↗
  • Laine JC, Denning JR, Riccio AI, Jo C, Joglar JM, Wimberly RL. The use of ultrasound in the management of septic arthritis of the hip. J Pediatr Orthop B. 2015 Mar;24(2):95-8. doi: 10.1097/BPB.0000000000000134. PubMed 25588046 ↗
  • Ehrendorfer S, LeQuesne G, Penta M, Smith P, Cundy P. Bilateral synovitis in symptomatic unilateral transient synovitis of the hip: an ultrasonographic study in 56 children. Acta Orthop Scand. 1996 Apr;67(2):149-52. doi: 10.3109/17453679608994660. PubMed 8623569 ↗
  • Yabunaka K, Ohue M, Morimoto N, Kitano N, Shinohara K, Takamura M, Gotanda T, Sanada S. Sonographic measurement of transient synovitis in children: diagnostic value of joint effusion. Radiol Phys Technol. 2012 Jan;5(1):15-9. doi: 10.1007/s12194-011-0128-z. Epub 2011 Jul 12. PubMed 21748477 ↗
  • Agarwal A, Aggarwal AN. Bone and Joint Infections in Children: Septic Arthritis. Indian J Pediatr. 2016 Aug;83(8):825-33. doi: 10.1007/s12098-015-1816-1. Epub 2015 Jul 21. PubMed 26189923 ↗
  • Vieira RL, Levy JA. Bedside ultrasonography to identify hip effusions in pediatric patients. Ann Emerg Med. 2010 Mar;55(3):284-9. doi: 10.1016/j.annemergmed.2009.06.527. Epub 2009 Aug 20. PubMed 19695738 ↗
  • Luhmann SJ, Jones A, Schootman M, Gordon JE, Schoenecker PL, Luhmann JD. Differentiation between septic arthritis and transient synovitis of the hip in children with clinical prediction algorithms. J Bone Joint Surg Am. 2004 May;86(5):956-62. doi: 10.2106/00004623-200405000-00011. PubMed 15118038 ↗

Individual participant data

Plan to share: Yes — Each study site will enter data into Redcap hosted by the lead site, Connecticut Children's. Data will be available for review and combined by Connecticut Children's investigators for data analysis. Each participating site has completed a data use agreement with the lead site agreeing to this plan.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

Time frame: Shared as patients are seen throughout the course of the study.

Access criteria: Only the designated study investigator at each participating site will have Redcap access for purposes of data entry only. Primary investigators at the lead site will have access to the combined data set for data analyses.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2019 to primary completion in Apr 2024, 54 months.

Of 29 observational studies under Arthritis, Infectious, half reached primary completion within 27 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 185. This study's 54 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 13, 2023
First posted
Aug 2, 2023
StartActual
Oct 15, 2019
Primary completionActual
Apr 25, 2024
CompletionActual
Apr 25, 2024
Last update
Aug 22, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 22, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05971745
Lead sponsor
Connecticut Children's Medical Center
Collaborators
Columbia University, Newark Beth Israel Medical Center, Cohen Children's Medical Center, Gold Coast Hospital and Health Service, Yale University
Responsible party
Ruchika Jones (Principal Investigator, Connecticut Children's Medical Center) — Principal investigator
First posted
Aug 2, 2023
Start date
Oct 15, 2019
Primary completion
Apr 25, 2024
Completion
Apr 25, 2024
Last update
Aug 22, 2024

Study contacts

Ruchika M Jones, MD, MS
principal investigator · Connecticut Children's

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 Aug 2024. You cannot join it, but the record below documents what was studied.

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