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Related Experiment Videos

Morphological study on the acetabular labrum.

Ye-Yeon Won1, In-Hyuk Chung, Nam-Su Chung

  • 1Department of Orthopaedic Surgery, Ajou University College of Medicine, Suwon, Korea. thrtkr@ajou.ac.kr

Yonsei Medical Journal
|October 30, 2003
PubMed
Summary

Acetabular labrum morphology varies, with specific anterior features potentially linked to tears. Understanding these anatomical differences is crucial for diagnosing and treating labral pathology effectively.

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Area of Science:

  • Orthopedic anatomy
  • Surgical anatomy

Background:

  • Accurate diagnosis and treatment of labral pathology require detailed knowledge of acetabular labrum morphology.
  • Previous studies suggest the anterior labrum is a common site for tears, but specific anatomical characteristics are not fully elucidated.

Purpose of the Study:

  • To analyze the cross-sectional morphology and attachment patterns of the acetabular labrum.
  • To identify anatomical variations and their potential correlation with labral tears.

Main Methods:

  • Morphological analysis of 54 Korean adult cadaveric labra, sectioned radially and perpendicularly.
  • Measurement of dimensions, classification of cut surface shapes (4 types), and observation of attachment patterns (5 types) on 432 surfaces.
  • Detailed examination of the anterior labrum, a known predilection site for tears.

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Main Results:

  • Dominance of tall triangular shapes (61.1%) and longer labral heights (7.4-7.0 mm) in the anterior portion.
  • Common anterior attachment patterns included no extra-extended portion (68.5%) and presence of sublabral slits (39.0%).
  • Observed variations in cut surface shapes and attachment patterns showed a tendency for distribution with labral tears.

Conclusions:

  • Acetabular labra exhibit diverse cross-sectional shapes and attachment patterns.
  • Anterior labral morphology, including shape and height, differs from other regions and may be associated with tear susceptibility.
  • These anatomical findings provide valuable data for managing acetabular labral pathology.