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Morphological features of the cervical ligament
M Edama1, T Takabayashi2, T Inai2
1Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-ku, Niigata, 950-3198, Japan. edama@nuhw.ac.jp.
Surgical and Radiologic Anatomy : SRA
|November 3, 2019
Summary
The cervical ligament (CL) has three distinct morphological types, identified in Japanese cadavers. These variations in CL structure may influence sub-talar joint control.
Area of Science:
- Anatomy
- Biomechanics
Background:
- The cervical ligament (CL) is a key anatomical structure.
- Understanding its morphology is crucial for biomechanical analysis.
Purpose of the Study:
- To elucidate the morphological characteristics of the cervical ligament (CL).
- To classify the CL based on its fiber bundle composition.
Main Methods:
- Analysis of 80 Japanese cadaveric legs (40 individuals).
- Classification of the CL by fiber bundle count.
- Measurement of fiber bundle length, width, thickness, and angle relative to the sagittal plane.
Main Results:
- Three CL types were identified: Type I (single fiber), Type II (superficial and inferior fibers), and Type III (superficial, intermediate, and inferior fibers).
- Type II was most common (57 feet), followed by Type I (15 feet) and Type III (8 feet).
- Significant differences in fiber bundle dimensions and angles were observed within and among CL types, with wider total width in Types II and III.
Conclusions:
- The identified morphological variations in the cervical ligament (CL) suggest distinct functional roles.
- Each CL type may exert differential control over sub-talar joint mechanics.
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