Fowler-Philip angle

Changed by Yaïr Glick, 14 Apr 2019

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The Fowler-Philip angle reflectsis the relation ofangle between the inferior calcaneus toand the posterior surface of the calcaneus.

Measurement

It is an angle measured on the lateral view of a loaded foot; formed between 2 lines:

  • a line tangent to the posterosuperior border of the calcaneus and the calcaneal tuberosity.
  • a line tangent to the inferior border of the calcaneus (longitudinal axis of the calcaneus), i.e. tangent to the calcaneal tubercle and processes of the calcaneal tuberosity (inferiormost point)
Interpretation

Its normal range is between 44° and 69°.

A Fowler-Philip angle of more than 75 degrees is supposedly diagnostic of enlargement of the posterior aspect of the calcaneus, as seen in the Haglund deformity or retrocalcaneal bursitis.

  • -</xml><![endif]-->The<strong> Fowler-Philip</strong> angle reflects the relation of the inferior <a href="/articles/calcaneus">calcaneus</a> to the posterior calcaneus.</p><h5>Measurement</h5><p>It is an angle measured on the lateral view of a loaded foot; formed between 2 lines:</p><ul>
  • -<li>a line tangent to the posterosuperior border of the calcaneus and the calcaneal tuberosity.</li>
  • -<li>a line tangent to the inferior border of the calcaneus (longitudinal axis of the calcaneus).</li>
  • +</xml><![endif]-->The<strong> Fowler-Philip</strong> angle is the angle between the inferior <a href="/articles/calcaneus">calcaneus</a> and the posterior surface of the calcaneus.</p><h5>Measurement</h5><p>It is an angle measured on the lateral view of a loaded foot; formed between 2 lines:</p><ul>
  • +<li>a line tangent to the posterosuperior border of the calcaneus and the calcaneal tuberosity</li>
  • +<li>a line tangent to the inferior border of the calcaneus (longitudinal axis of the calcaneus), i.e. tangent to the calcaneal tubercle and processes of the calcaneal tuberosity (inferiormost point)</li>
Images Changes:

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Figure 2: increased in Haglund deformity
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Image 2 Annotated image (Lateral) ( create )

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