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Dorsal defect of the patella
M R Safran1, P McDonough, L Seeger
1University of California Los Angeles School of Medicine, Department of Orthopaedic Surgery 90024.
Journal of Pediatric Orthopedics
|September 1, 1994
Summary
Dorsal defect of the patella is a common, benign knee lesion often found incidentally in adolescents. This study reviews eight cases, highlighting its typical radiographic features and characteristics.
Area of Science:
- Orthopedic imaging
- Radiology of bone lesions
- Patellofemoral joint abnormalities
Background:
- Dorsal defect of the patella is a benign subchondral lesion.
- Etiology remains unknown.
- Typically located in the superolateral patella.
Observation:
- Presents as a rounded radiolucent focus with a sclerotic margin on radiographs.
- Often an incidental finding, but can be symptomatic.
- Affects males and females equally, with bilateral occurrence in one-third of cases.
- Most common in adolescents.
Findings:
- This report details eight dorsal defects of the patella in five patients.
- The characteristic radiographic appearance is described.
- Clinical presentation and demographic data are presented.
Implications:
- Enhances understanding of this benign patellar lesion.
- Aids radiologists and clinicians in accurate diagnosis.
- Contributes to the literature on patellofemoral abnormalities.