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Pneumatization types of the dorsum sellae: a computed tomography study
Baran Can Alpergin1, Umit Eroglu2, Elif Gokalp2
1Ankara Etlik City Hospital, Department of Neurosurgery, Ankara, Turkey.
Surgical and Radiologic Anatomy : SRA
|May 27, 2024
Summary
Pneumatization of the dorsum sellae (DS) increases with age, particularly in older adults. Awareness of DS pneumatization is crucial for neurosurgeons to prevent complications like cerebrospinal fluid fistulas during surgery.
Area of Science:
- Anatomy
- Radiology
- Neurosurgery
Background:
- Pneumatization of the dorsum sellae (DS) is an anatomical variation.
- Understanding its prevalence and characteristics is important for surgical planning.
Purpose of the Study:
- To classify the pneumatization of the dorsum sellae (DS) in individuals aged 1-90 years.
- To analyze the relationship between DS pneumatization and age/sex.
Main Methods:
- Computed tomography (CT) scans of 1080 subjects (aged 1-90 years) were analyzed.
- Four types of DS pneumatization were defined: Type 0 (none), Type 1 (<50%), Type 2 (>50%), and Type 3 (total).
Main Results:
- DS pneumatization was present in 32.8% of subjects, with higher incidence in adults (36.1%) than children (21.2%).
- The frequency of pneumatization types was: Type 0 (67.2%), Type 1 (21.6%), Type 2 (8.1%), and Type 3 (3.1%).
- DS pneumatization incidence significantly increased with age (p<0.001) but was not influenced by sex.
Conclusions:
- DS pneumatization incidence rises with adult age, especially in the elderly.
- Neurosurgeons and neuroradiologists must consider DS pneumatization to mitigate risks like cerebrospinal fluid fistulas during procedures like posterior clinoidectomy.
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