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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...

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Updated: May 19, 2026

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Imaging in patellofemoral instability: an abnormality-based approach.

Paulo Renato Fernandes Saggin1, Jose Idílio Saggin, David Dejour

  • 1Instituto de Ortopedia e Traumatologia de Passo Fundo, Passo Fundo RS Brazil.

Sports Medicine and Arthroscopy Review
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Imaging plays a crucial role in diagnosing and managing patellofemoral instability. A structured approach using various imaging techniques helps identify causes for effective treatment.

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Area of Science:

  • Orthopedic imaging
  • Diagnostic radiology
  • Sports medicine

Background:

  • Patellofemoral instability requires accurate diagnosis for effective treatment.
  • Imaging is essential for identifying the root causes of instability.
  • Multiple imaging modalities can offer comparable diagnostic information.

Purpose of the Study:

  • To review imaging findings in patellofemoral instability.
  • To describe acute and chronic abnormalities detected via imaging.
  • To emphasize the importance of imaging in guiding treatment decisions.

Main Methods:

  • Review of current literature on patellofemoral instability imaging.
  • Analysis of imaging findings in acute and chronic settings.
  • Structured approach to identifying instability factors.

Main Results:

  • Imaging confirms patellofemoral instability diagnosis.
  • Identifies specific etiological factors contributing to instability.
  • Highlights abnormalities in both acute and chronic presentations.

Conclusions:

  • Imaging is indispensable for diagnosing patellofemoral instability.
  • A systematic imaging approach aids in identifying causative factors.
  • Understanding acute and chronic findings optimizes patient management.