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TL;DR
It found that specific variations in tibia-fibula shape, like a thicker upper midshaft with prominent condyles, were associated with increased tibial strain in certain regions.
Royal Society Open Science · 3 authors, 1 centre
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It found that specific variations in tibia-fibula shape, like a thicker upper midshaft with prominent condyles, were associated with increased tibial strain in certain regions.
This preclinical, computational study used statistical shape models of the tibia-fibula and finite-element simulations to analyze how geometric variations affect tibial strain during running. The central result was that a specific shape characteristic (PC6), describing increased thickness of the midshaft to upper tibia with increased condyle prominence, was significantly associated with higher effective strain in specific regions of the distal anterolateral and proximal posterior tibial shaft at all speeds. Another shape characteristic (PC2), describing increased midshaft cortical thickness and decreased medullary cavity diameter, was significantly associated with increased strain in a distal medial region only at 5 m/s. The study is limited by the use of generic running loads and notes that the statistically significant areas for strain were small, though trends were observed in surrounding areas.