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Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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  1. Home
  3. Ultrasonographic Features And Recurrence Risk Of Transient Synovitis Of The Hip In Children: A Retrospective Study.
  1. Home
  3. Ultrasonographic Features And Recurrence Risk Of Transient Synovitis Of The Hip In Children: A Retrospective Study.

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Ultrasonographic features and recurrence risk of transient synovitis of the hip in children: a retrospective study.

Haoran Feng1, Xin Qiu2, Jianlin Chen1

  • 1Shenzhen Children's Hospital, Shenzhen, People's Republic of China.

BMC Musculoskeletal Disorders
|January 17, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Recurrence of transient synovitis of the hip (TSH) in children is linked to increased anterior capsule distance (ACD) and ACD ratio. These ultrasound measurements can help predict TSH recurrence, aiding in prognosis assessment.

Keywords:
ChildrenHip anterior capsule distanceRecurrenceTransient synovitis of hip

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Area of Science:

  • Pediatric Orthopedics
  • Musculoskeletal Imaging
  • Diagnostic Ultrasound

Background:

  • Transient synovitis of the hip (TSH) recurrence is clinically significant yet difficult to predict.
  • Hip ultrasonography is crucial for evaluating hip effusion in TSH patients.
  • Identifying predictive factors for TSH recurrence is essential for patient management.

Purpose of the Study:

  • To identify ultrasonographic features associated with recurrent TSH in children.
  • To determine factors predicting the recurrence of transient synovitis of the hip.

Main Methods:

  • Retrospective review of medical records and hip ultrasound data from 668 children with TSH.
  • Analysis included age, anterior capsule distance (ACD) in both hips, and ACD ratio.
  • Statistical methods included correlation and logistic regression analyses to identify recurrence factors.

    • Main Results:

    • Children with recurrent TSH showed a greater affected-side ACD compared to non-recurrent cases.
    • Higher ACD (OR 1.14) and ACD ratio (OR 2.51) were significantly associated with TSH recurrence.
    • A positive correlation was observed between ACD and age in children with TSH (R=0.47).

    Conclusions:

    • Increased anterior capsule distance (ACD) and ACD ratio are significant risk factors for TSH recurrence in children.
    • The ACD ratio helps mitigate the effect of age when assessing TSH recurrence risk.
    • These findings enhance understanding of TSH characteristics and aid in prognosis assessment.