Surface Shape of the Calcaneal Tuberosity and the Occurrence of Retrocalcaneal Bursitis among Runners

Agnieszka Wnuk-Scardaccione, Ewa Mizia, Klaudia Zawojska, Jan Bilski and Jakub Wojdyła
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Agnieszka Wnuk-Scardaccione: Department of Biomechanics and Kinesiology, Faculty of Health Sciences, Jagiellonian University Collegium Medicum, 31-008 Krakow, Poland
Ewa Mizia: Department of Anatomy, Jagiellonian University Collegium Medicum, 31-008 Krakow, Poland
Klaudia Zawojska: Department of Biomechanics and Kinesiology, Faculty of Health Sciences, Jagiellonian University Collegium Medicum, 31-008 Krakow, Poland
Jan Bilski: Department of Biomechanics and Kinesiology, Faculty of Health Sciences, Jagiellonian University Collegium Medicum, 31-008 Krakow, Poland
Jakub Wojdyła: Faculty of Applied Mathematics, AGH University of Science and Technology, 30-059 Krakow, Poland

IJERPH, 2021, vol. 18, issue 6, 1-11

Abstract: Purpose: The aim of the study was to establish the relationship between the shape of the calcaneal tuberosity (flat, stepped, rounded, normal) and the probability that retrocalcaneal bursitis among people who train running regularly. Methods: The study included a group of 30 runners who suffered from retrocalcaneal bursitis in the past, and 30 people who never had symptoms of this disease. The study was based on a diagnostic survey, as well as on clinical examination. The surface of the calcaneal tuberosity and the slope of the calcaneus were assessed using X-rays. The mobility of the bursa, its surface size, the thickness of the Achilles tendon and its attachment rate were established during an ultrasound examination. Results: Flat surface of the calcaneal tuberosity increases fourfold the risk of suffering from retrocalcaneal bursitis (OR = 4.3). The people whose calcaneus slope is above 25° are at increased risk of suffering from such an inflammation compared with the people whose calcaneus bone is more horizontal (OR = 2.8). The analysis shows that the thickness of the Achilles tendon ( p = 0.001), the surface size of the bursa ( p = 0.009), as well as the flat surface of the calcaneal tuberosity ( p = 0.008) are strongly associated with the occurrence of retrocalcaneal bursitis. Conclusions: The flat shape of the calcaneal tuberosity increases the risk of bursitis. The risk of inflammation is higher when the Achilles tendon is thicker and the surface of the bursa is smaller than normal.

Keywords: retrocalcaneal bursa; calcaneal tuberosity; running (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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