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Related Experiment Videos

Proximal tibiofibular joint: a radiographic and computed tomographic study

T Sugita1, Y Matsumura, J Umehara

  • 1Department of Orthopedic Surgery, Tohoku University School of Medicine, Sendai, Japan.

The Tohoku Journal of Experimental Medicine
|May 1, 1995
PubMed
Summary

Radiological investigation of the proximal tibiofibular joint revealed three contour types. Type B, common in younger individuals, shows specific rotation and inclination, while Type C, seen in older patients, exhibits distinct joint characteristics.

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Area of Science:

  • Orthopedics
  • Radiology
  • Anatomy

Background:

  • The proximal tibiofibular joint is crucial for lower limb biomechanics.
  • Understanding its anatomical variations is important for diagnosing and treating knee pathologies.

Purpose of the Study:

  • To classify the radiological contour of the proximal tibiofibular joint.
  • To investigate the relationship between joint contour and its rotational and inclinational parameters.
  • To characterize different joint contour types using CT imaging.

Main Methods:

  • Radiographic investigation of 671 proximal tibiofibular joints under fluoroscopic control.
  • Classification of joint contour into three types (A, B, C) based on joint line morphology.
  • Measurement of joint rotation and inclination.

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  • CT examination of 51 knees to assess joint obliquity and fibular positioning.

    • Main Results:

    • Type A: Straight joint lines.
    • Type B: Convex fibular joint line, associated with younger patients, lower rotation, higher inclination, sagittal joint line, and anterior fibular position on CT.
    • Type C: Convex tibial joint line, associated with older patients, higher rotation, lower inclination, frontal joint line, and posterior fibular position on CT.

    Conclusions:

    • The proximal tibiofibular joint exhibits distinct radiological morphologies (Types A, B, C).
    • These morphologies correlate with patient age, joint rotation, inclination, and fibular positioning.
    • These findings provide valuable insights into the anatomical variations of the proximal tibiofibular joint.