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Synovial pseudarthrosis: a clinical, roentgenographic-scintigraphic, and pathologic study
The Journal of Trauma
|May 1, 1987
Summary
Synovial pseudarthrosis, a unique nonunion of bone, often affects the humerus, femur, and tibia. Technetium-99m scans effectively identify this condition, with varied treatment success rates based on infection presence.
Area of Science:
- Orthopedic Surgery
- Pathology
- Radiology
Background:
- Synovial pseudarthrosis is a distinct pathologic entity, differing from standard nonunion.
- It commonly affects long bones such as the humerus, femur, and tibia.
Purpose of the Study:
- To review cases of synovial pseudarthrosis.
- To evaluate diagnostic methods and treatment outcomes.
Main Methods:
- Review of seventy-six patients diagnosed with synovial pseudarthrosis.
- Assessment of diagnostic utility of routine roentgenograms and 99mTc scans.
- Histopathological examination using light and electron microscopy.
- Analysis of treatment success rates in infected versus noninfected cases.
Main Results:
- Routine roentgenograms were not beneficial for diagnosis.
- 99mTc scans identified synovial pseudarthrosis in 93% of cases.
- Microscopy revealed normal synovial lining tissue.
- Treatment success rates were 43% for infected cases and 59% for noninfected cases.
Conclusions:
- Synovial pseudarthrosis is a unique nonunion potentially caused by motion or infection.
- Technetium-99m scans are valuable for diagnosis.
- Treatment outcomes differ significantly from those of regular nonunion.