Fowler-Philip angle
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The Fowler-Philip angle is the angle between the inferior calcaneus and 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
tangenttangential to the posterosuperior border of the calcaneus and the calcaneal tuberosity - a line
tangenttangential 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 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>-</ul><h5>Interpretation</h5><p>Its normal range is between 44° and 69°.</p><p>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 <a href="/articles/haglund-deformity">Haglund deformity</a> or <a href="/articles/retrocalcaneal-bursitis">retrocalcaneal bursitis</a>.</p><p><!--[if gte mso 9]><xml>- +</xml><![endif]-->The<strong> Fowler-Philip</strong> <strong>angle</strong> is the angle between the inferior <a href="/articles/calcaneus">calcaneus</a> and the posterior surface of the calcaneus.</p><h4>Measurement</h4><p>It is an angle measured on the lateral view of a loaded foot; formed between 2 lines:</p><ul>
- +<li>a line tangential to the posterosuperior border of the calcaneus and the calcaneal tuberosity</li>
- +<li>a line tangential 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>
- +</ul><h4>Interpretation</h4><p>Its normal range is between 44° and 69°.</p><p>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 <a href="/articles/haglund-deformity">Haglund deformity</a> or <a href="/articles/retrocalcaneal-bursitis">retrocalcaneal bursitis</a>.</p><p><!--[if gte mso 9]><xml>
References changed:
- 2. Ruch JA. Haglund's disease. (1974) Journal of the American Podiatric Medical Association. 64 (12): 1000. <a href="https://doi.org/10.7547/87507315-64-12-1000">doi:10.7547/87507315-64-12-1000</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/4443536">Pubmed</a> <span class="ref_v4"></span>
- 3. William H. M. Castro, Joerg Jerosch. Examination and Diagnosis of Musculoskeletal Disorders. (2011) <a href="https://books.google.co.uk/books?vid=ISBN9783131605818">ISBN: 9783131605818</a><span class="ref_v4"></span>
- 2. Ruch JA: Haglund's disease. J Am Pocliatry,'lssoc 64(12): 1000- 1003, 1974.
- 3. Castro W, Jerosch J. Examination and Diagnosis of Musculoskeletal Disorders, History - Physical Examination - Imaging Techniques - Arthroscopy. TIS. (2001). ISBN: 3131605812
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