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  • Title: Posterior heel pain associated with a calcaneal step and Achilles tendon calcification.
    Author: Fiamengo SA, Warren RF, Marshall JL, Vigorita VT, Hersh A.
    Journal: Clin Orthop Relat Res; 1982 Jul; (167):203-11. PubMed ID: 7094464.
    Abstract:
    Factors are examined which may be associated with chronic posterior heel pain of nonrheumatologic and nonmetabolic etiology. The charts of patients in whom Haglund's disease retrocalcaneal bursitis, or "pump bumps" was diagnosed during the period from 1963-1978 at The Hospital for Special Surgery, were reviewed. Nineteen patients met the criteria of symptomatic patients. The radiographs in 12 of these patients were available for review. These cases and 104 control cases were evaluated for the presence of calcaneal spurs, Achilles tendon calcifications and a posterior calcaneal step. In addition, Fowler-Philip measurements were obtained from the radiographs and compared with Fowler and Philip's results. Although the Fowler-Philip angles of the two groups were not significantly different (p greater than 0.05), the symptomatic heels had a significantly longer horizontal calcaneal length (p less than 0.05). The incidences of Achilles tendon calcification (p = 0.004) and of a posterior calcaneal step (p less than 0.001) were higher in patients who had chronic posterior heel pain as compared to a control population. An increased horizontal length of the calcaneus and the presence of a posterior calcaneal step appeared to cause chronic posterior heel pain and degenerative lesions of the Achilles tendon. Although a posterosuperior calcaneal prominence is theoretically important, it was not in this series. A posterior calcaneal step may alter the tension within the tendon, resulting in microscopic tendon injury, decreased vascularity and loss of strength, with subsequent calcification or rupture.
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