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Morphometry and variations of the human suprascapular notch
D Agrawal1, B Singh1, S G Dixit1
1Department of Anatomy, All India Institute of Medical Sciences (AIIMS), Jodhpur 342005, Rajasthan, India.
Morphologie : Bulletin De L'Association Des Anatomistes
|September 19, 2015
Summary
This study classifies suprascapular notch variations in 728 scapulae, identifying five types and subtypes. Findings aid clinicians in correlating notch morphology with suprascapular nerve entrapment.
Area of Science:
- Anatomy
- Orthopedics
- Morphology
Background:
- The suprascapular notch is a critical anatomical landmark.
- Variations in its shape and dimensions can lead to suprascapular nerve entrapment.
- Understanding these variations is crucial for clinical diagnosis and treatment.
Purpose of the Study:
- To develop a simple method for studying suprascapular notch variations.
- To classify different types and subtypes of the suprascapular notch.
- To measure the thickness of the superior transverse scapular bar.
Main Methods:
- Detailed examination of 728 dried human scapulae.
- Measurement of suprascapular notch dimensions and superior transverse scapular bar thickness using digital vernier calipers.
- Statistical analysis of collected data.
Main Results:
- Five types of suprascapular notches were identified: Type I (ill-defined), Type II (V-shaped), Type III (U-shaped), Type IV (inverted V-shaped), and Type V (absent notch).
- Type II and III notches were further subclassified based on depth.
- A superior transverse scapular bar was present in 12.91% of specimens, with variations in mean thickness.
Conclusions:
- The classification system provides a framework for understanding suprascapular notch morphology.
- This research can help clinicians correlate specific notch types and ossified transverse scapular ligament variations with suprascapular nerve entrapment.
- The findings contribute to improved diagnostic accuracy and patient management.
Keywords:
Bord supérieur de la scapulaForamen suprascapulaireIncisure scapulaireLigament transverse supérieur de la scapulaNerf suprascapulaireScapulaScapular notchSuperior transverse ligament of the scapulaSuprascapular foramenSuprascapular nerveTop edge of the scapulaMore Related Videos
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