Fowler-Philip angle
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TheThe Fowler-Philip angle reflects the relation of the inferior calcaneus to the posterior 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).
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]--><strong>The Fowler-Philip</strong> angle reflects the relation of the inferior <a href="/articles/calcaneus">calcaneus</a> to the posterior calcaneus. It is an angle measured on the lateral view of a loaded foot; formed between 2 lines:</p><ul>- +</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>
-</ul><p> </p><p>Its normal range is between 44° and 69°.</p><p><strong>A Fowler-Philip</strong> 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>- +</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>
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>
- 1. Fowler, A., and Philip, J. F.: Abnormality of the calcaneus as a cause of painful heel. Its diagnosis and operative treatment. British J. Surg., 32: 494-498, 1945
- 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>
- Ruch JA: Haglund's disease. J Am Pocliatry,'lssoc 64(12): 1000- 1003, 1974.
- Fowler, A., and Philip, J. F.: Abnormality of the calcaneus as a cause of painful heel. Its diagnosis and operative treatment. British J. Surg., 32: 494-498, 1945
- Castro W, Jerosch J. Examination and Diagnosis of Musculoskeletal Disorders, History - Physical Examination - Imaging Techniques - Arthroscopy. TIS. (2001). ISBN: 3131605812
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Figure 2: Exaggerated Fowler-Philip angle increased in Haglund deformity.
Image 1 Annotated image (Lateral) ( update )
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