Haglund deformity, also known as a pump bump or Bauer bump or Mulholland deformity, is defined as bony enlargement formed at posterosuperior aspect of calcaneum. This deformity leads to retrocalcaneal bursitis.
It may result secondary to chronic pressure of rigid shoes.
Bony prominence is seen on postero-superior aspect of calcaneal tuberosity. Repeated trauma to bursa leads to loss of flat planes secondary to retrocalcaneal bursitis. Soft tissue swelling can also be seen on plain radiograph.
MRI is helpful in detecting the degenerative changes that occur within the Achilles tendon. Also useful to the surgeon to know the extent of the degenerative changes.
- 1. Chauveaux D, Liet P, Huec J et-al. A new radiologic measurement for the diagnosis of Haglund's deformity. Surg Radiol Anat. 1991;13 (1): 39-44. Surg Radiol Anat (abstract) - doi:10.1007/BF01623140
- 2. Rosenberg ZS, Beltran J, Bencardino JT. From the RSNA Refresher Courses. Radiological Society of North America. MR imaging of the ankle and foot. Radiographics. 2000;20 Spec No (suppl 1): S153-79. Radiographics (full text) - Pubmed citation
- 3. Reinherz RP, Smith BA, Henning KE. Understanding the pathologic Haglund's deformity. J Foot Surg. 1991;29 (5): 432-5. Pubmed citation
- 4. Stephens MM. Haglund's deformity and retrocalcaneal bursitis. Orthop. Clin. North Am. 1994;25 (1): 41-6. Pubmed citation