Anatomical determinants of sphenoid sinus volume: insights from a meta-analysis of observational studies.
Surg Radiol AnatSep 2, 2026 (epub)
Adil Asghar, Ravi Kant Narayan, Apurba Patra et al.
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In 30 seconds
This meta-analysis examined the anatomical determinants of sphenoid sinus volume across 27 studies with 1263 observations. The pooled mean total sphenoid sinus volume was 9.30 cm³, with significant increases observed from conchal to postsellar pneumatization types. The study highlights the influence of demographic factors such as sex and age on sinus volume.
Key findings
- The pooled mean total sphenoid sinus volume was 9.30 cm³.
- Sinus volume increased from 2.41 cm³ in conchal to 11.26 cm³ in postsellar types.
- Sphenoid volumes were higher in males by 2.07 cm³.
- A positive correlation with age in children (r = 0.69) and a decline in the elderly (r = -0.29) were observed.
Why it matters
Understanding the anatomical variations in sphenoid sinus volume is crucial for clinicians involved in skull base surgery. These insights can aid in surgical planning and potentially reduce complications associated with neurovascular structures.