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Congenital dislocation of the patella
Benjamin Z Koplewitz1, Paul S Babyn, William G Cole
1Department of Diagnostic Imaging, Hospital for Sick Children and the University of Toronto, Toronto, Canada. ben_kop@hadassah.org.il
AJR. American Journal of Roentgenology
|April 28, 2005
Summary
Congenital dislocation of the patella is uncommon. Imaging modalities like sonography, radiography, and MRI are crucial for diagnosis and management of this condition.
Area of Science:
- Orthopedics
- Radiology
- Pediatric Imaging
Background:
- Congenital dislocation of the patella is a rare condition.
- It presents with varied clinical symptoms across different age groups.
Purpose of the Study:
- To detail the imaging findings of congenital dislocation of the patella.
- To highlight the utility of various imaging modalities in diagnosing and managing this condition.
Main Methods:
- Review of imaging findings in patients with congenital dislocation of the patella.
- Evaluation of sonography, conventional radiography, and MRI for diagnostic accuracy and management planning.
Main Results:
- Sonography effectively visualizes patellar displacement and adjacent joint structures, especially in immature skeletons.
- Radiography is useful for diagnosis post-patellar ossification and for postoperative assessment.
- MRI provides detailed visualization of the extensor mechanism for preoperative planning.
Conclusions:
- Sonography is valuable for assessing soft-tissue and bony structures in congenital patellar dislocation.
- Conventional radiography aids in diagnosis and follow-up.
- MRI is the preferred method for detailed preoperative evaluation.