Hydroxyapatite crystal thickness and orientation at the bone implant interface : spatial and temporal evolutions

Sophie Le Cann (1) , Elin Törnquist (2) , Isabella Silva Barreto (2) , Manon Fraulob (1) , Mariana Verezhak (3) , Manuel Guizar-Sicairos (3) , Hugues Albini Lomani (1) , Hanna Isaksson (2) , Guillaume Haiat (1)

1 MSME - Laboratoire Modélisation et Simulation Multi-Echelle
2 Skane University Hospital [Lund]
3 SLS-PSI - The Swiss Light Source (SLS)

Bone structure is complex and evolves over time, especially during osseointegration, when bone forms around and onto an implant surface. Sufficient bone ingrowth together with adequate quality, depending on its compositional, structural and mechanical properties, will condition the long-term stability of the implant. The nanoscale arrangement and reorganization is of particular interest since a relationship between mineral crystals thickness and elastic properties of bone tissue has been observed [1]. Thus, characterizing crystal thickness around an implant may help to evaluate the mechanical properties of the interface. but only little work is available [2, 3]. We investigated spatial and temporal evolutions of crystal thickness and orientation close to a metallic implant using small angle x-ray scattering (SAXS); this work has been published [4].

Domaines: Biomécanique [physics.med-ph]

Sophie Le Cann, Elin Törnquist, Isabella Silva Barreto, Manon Fraulob, Mariana Verezhak, et al.. Hydroxyapatite crystal thickness and orientation at the bone implant interface : spatial and temporal evolutions. 27th Congress of the European Society of Biomechanics, Jun 2022, Porto, Portugal. , 2022. ⟨hal-03827271⟩