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The value of hip aspiration in pediatric transient synovitis
Boaz Liberman1, Amir Herman, Amos Schindler
1Orthopaedic Oncology Unit, Edmond and Lilly Safra Hospital for Children, Sheba Medical Center, Tel-Hashomer, Israel.
Insights
Ultrasound-guided hip aspiration offers rapid relief for pediatric transient synovitis (TS), significantly reducing pain and improving mobility. This procedure also aids in differentiating TS from septic arthritis, improving diagnostic accuracy.
Area of Science:
- Pediatric Orthopaedics
- Musculoskeletal Imaging
- Pediatric Rheumatology
Background:
- Transient synovitis (TS) is a frequent pediatric orthopaedic condition.
- TS causes temporary disability and diagnostic challenges due to its similarity to septic arthritis.
- Evaluating novel treatment modalities for TS is crucial for pediatric care.
Purpose of the Study:
- To assess the efficacy of ultrasound-guided hip aspiration as a treatment for pediatric transient synovitis.
- To compare recovery parameters between traditional treatment and aspiration-based treatment for TS.
- To determine if hip aspiration can aid in the differential diagnosis of hip joint pain in children.
Main Methods:
- A retrospective study comparing two groups of children diagnosed with TS.
- Group 1 (1984-1989): 112 children treated with bed rest and NSAIDs.
- Group 2 (1990-1999): 119 children treated with hip aspiration, bed rest, and NSAIDs.
Main Results:
- Significantly lower rates of limping (10% vs 92%) and refusal to bear weight (1% vs 14%) in the aspiration group (Group 2) within 24 hours.
- Markedly reduced hip joint pain (6% vs 81%) in Group 2 compared to Group 1.
- Larger joint effusions correlated with the inability to bear weight, suggesting a mechanism for pain relief through aspiration.
Conclusions:
- Ultrasound-guided hip aspiration effectively alleviates pain and movement limitations in pediatric transient synovitis.
- The procedure facilitates rapid differential diagnosis between TS and septic arthritis.
- Aspiration addresses joint capsule distension, a likely cause of pain in TS.
Introduction:
Hip transient synovitis (TS) is a common pediatric orthopaedic problem. Although a self-limiting illness, it often makes the patient temporarily disabled and poses a diagnostic difficulty because of its similarity to septic arthritis in clinical manifestations. The aim of this study was to evaluate the use of a single ultrasound-guided hip aspiration as a treatment modality for TS.
Methods:
Between the years 1984 and 1989, 112 children with TS were treated through bed rest and using nonsteroidal anti-inflammatory drugs (group 1). Between the years 1990 and 1999, 119 children diagnosed with TS were treated using hip aspiration, bed rest, and nonsteroidal anti-inflammatory drugs (group 2). Recovery parameters were compared between these patient groups.
Results:
Twenty-four hours after admission, limping was noted in 92% and 10% of the patients in groups 1 and 2, respectively, (P < 0.001). Refusal to bear weight was observed in 14% and 1% in groups 1 and 2, respectively, (P < 0.001), and hip joint pain was reported in 81% and 6% in groups 1 and 2, respectively, (P < 0.001). Larger joint effusions were found to be the reason behind the inability to bear weight.
Conclusions:
Pain due to TS may be because of capsule stretching owing to the accumulation of joint effusion. Ultrasound-guided hip aspiration relieves pain and limitation in movement and provides rapid differential diagnosis from septic arthritis of the hip joint.
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