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Legg-Calve-Perthes disease following transient synovitis. How often?
Insights
Transient synovitis in children typically resolves without lasting issues. However, prolonged symptoms may indicate a risk for developing Legg-Calve-Perthes disease, requiring careful monitoring.
Area of Science:
- Pediatric Orthopedics
- Rheumatology
Background:
- Transient synovitis of the hip is a common condition in children.
- Legg-Calve-Perthes disease is a hip disorder affecting children.
Purpose of the Study:
- To evaluate the outcomes of children diagnosed with transient synovitis.
- To determine the relationship between transient synovitis and the development of Legg-Calve-Perthes disease.
Main Methods:
- A retrospective analysis of 41 children with transient synovitis and 10 with Legg-Calve-Perthes disease.
- Review of 455 cases of transient synovitis from existing literature.
Main Results:
- All 41 children with transient synovitis experienced a benign outcome.
- One case initially diagnosed with transient synovitis later developed Legg-Calve-Perthes disease after 4 months of persistent symptoms.
- Literature review indicated only one instance of transient synovitis progressing to Legg-Calve-Perthes disease after a 3-month asymptomatic period.
Conclusions:
- Transient synovitis is generally a benign condition.
- Children with persistent symptoms of transient synovitis are at higher risk for developing Legg-Calve-Perthes disease.
Abstract:
Forty-one children with transient synovitis of the hip and 10 children with Legg-Calve-Perthes disease were followed. All 41 cases of transient synovitis had a benign outcome. In this series, nine of the 10 children with Legg-Calve-Perthes disease were diagnosed upon their first roentgenographic examination. One child whose first diagnosis was transient synovitis remained symptomatic for 4 months, when he developed roentgenologic changes consistent with Perthes disease. The literature is reviewed and 455 cases of transient synovitis analyzed. Only one patient with transient synovitis developed Legg-Calve-Perthes disease after having been asymptomatic for a period of 3 months. In 17 other cases, symptoms persisted until Legg-Calve-Perthes was diagnosed. It is suggested that transient synovitis is a benign disease and that only children with protracted symptoms are at risk to develop Perthes disease.