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Technetium-99m bone scintigraphy and mandibular condylar hyperplasia.
M J Henderson1, M L Wastie, M Bromige
1Department of Radiology, University Hospital, Nottingham.
Clinical Radiology
|June 1, 1990
Summary
Radionuclide skeletal scintigraphy helps assess mandibular condylar hyperplasia causing asymmetry. Symmetrical uptake on bone scans suggests growth has stopped, while asymmetrical uptake may indicate active growth.
Area of Science:
- Medical Imaging
- Orthodontics
- Pediatric Dentistry
Background:
- Mandibular condylar hyperplasia can cause facial asymmetry.
- Assessing active growth in the condylar region is crucial for treatment planning.
Observation:
- Radionuclide skeletal scintigraphy was used to evaluate 14 cases of mandibular asymmetry.
- Bone scintigrams were analyzed for radionuclide uptake in the condylar regions.
Findings:
- Symmetrical radionuclide uptake in both condylar regions indicates no continuing asymmetrical growth.
- Unilateral increased uptake often suggests an abnormally active condylar growth focus.
- Temporomandibular joint disease can lead to false positive results for active growth.
Implications:
- Radionuclide scintigraphy is a valuable tool for diagnosing mandibular asymmetry due to condylar hyperplasia.
- The findings aid in differentiating between active and inactive growth phases.
- Accurate diagnosis influences surgical and orthodontic treatment strategies for facial asymmetry.