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[Computerized tomography findings following successful lumbar intervertebral disk surgery]
E Hofmann1, U Reiniger, M Ratzka
1Abteilung für Neuroradiologie, Kopfklinik Würzburg.
Digitale Bilddiagnostik
|December 1, 1987
Summary
Post-lumbar disk surgery, computed tomography reveals normal findings like small seromas and temporary dorsal disc bulging. These changes, often exceeding preoperative disc bulging, resolve naturally and are not recurrent herniation.
Area of Science:
- Neurosurgery
- Radiology
- Orthopedics
Background:
- Postoperative computed tomography (CT) is crucial for evaluating lumbar disk surgery outcomes.
- Understanding normal postoperative morphological changes is essential to differentiate from complications.
Purpose of the Study:
- To systematically analyze computed tomography findings following successful lumbar disk surgery.
- To characterize and differentiate common postoperative changes from recurrent or residual disc herniation.
Main Methods:
- Retrospective analysis of computed tomography scans from asymptomatic patients post-lumbar disk surgery.
- Detailed observation of morphological changes, including seromas and dorsal disc bulging.
Main Results:
- Small seromas were common, asymptomatic, and considered normal postoperative findings.
- Dorsal disc bulging, potentially exceeding preoperative levels, was observed and attributed to posterior longitudinal ligament changes.
- This bulging resolved spontaneously within months in the observed patients.
Conclusions:
- Computed tomography findings of small seromas and transient dorsal disc bulging are typical after successful lumbar disk surgery.
- These findings should not be misdiagnosed as recurrent or residual disc herniation, as they resolve naturally.