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Classification of the popliteofibular ligament
Łukasz Olewnik1, Bartosz Gonera1, Konrad Kurtys1
1Department of Anatomical Dissection and Donation, Medical University of Lodz, Lodz, Poland.
Clinical Anatomy (New York, N.Y.)
|February 4, 2022
Summary
The popliteofibular ligament (PFL) shows significant morphological variations, with a new classification identifying three common types. This understanding aids surgical planning and radiological evaluation of knee joint anatomy.
Area of Science:
- Orthopedic surgery
- Human anatomy
- Biomechanical research
Background:
- The popliteofibular ligament (PFL) is crucial for knee joint stability.
- Understanding its distal attachment variations is essential for accurate surgical interventions and imaging interpretation.
Purpose of the Study:
- To characterize the morphological variations of the distal popliteofibular ligament (PFL) attachment.
- To develop a classification system for PFL variations to aid surgical planning and radiological assessment.
Main Methods:
- Dissection and morphological analysis of 137 formalin-fixed lower limbs.
- Documentation of the presence, course, and insertion patterns of the PFL.
- Development of a three-fold classification system based on observed variations.
Main Results:
- The PFL was present in 88.3% of the examined limbs.
- A three-fold classification was proposed: Type I (72.3%) attached to the fibular head apex; Type II (8.7%) showed bifurcation; Type III (7.3%) presented a double PFL with distinct origins and insertions.
- Significant morphological variations in PFL distal attachment were confirmed.
Conclusions:
- The PFL exhibits considerable morphological variability, necessitating a standardized classification system.
- The proposed classification provides a valuable tool for clinicians evaluating knee joint anatomy and performing related surgical procedures.
- Awareness of PFL variations is critical for addressing potential clinical and biomechanical challenges.
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