Interfragmentary strain measurement post-fixation to guide intraoperative decision making: a narrative review

Rechenmacher, Albert J.; Helmkamp, Joshua; Brown, Matthew; Paul, Alexandra V.; Campbell, Sean T.; Pean, Christian A.; DeBaun, Malcolm R.

doi:10.1007/s00590-023-03605-y

Cited by 1 publication

(1 citation statement)

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“…These findings suggest that appropriate IFM promotes fracture healing. However, optimization of IFM is difficult to implement in clinical practice, and actual studies have been limited to preclinical trials [30]. There are anticipations for the development of techniques that enable surgeons to directly assess IFM and interfragmentary movement strain across fracture fragments in real-time during surgical procedures.…”

Section: Importance Of Interfragmentary Movement In Fracture Healingmentioning

confidence: 99%

A Review of the Impacts of Implant Stiffness on Fracture Healing

Mori,

Kamimura,

Ito

et al. 2024

Applied Sciences

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The bone healing process is influenced by various physiological factors. Fracture fixation traditionally relied on rigid metallic implants. However, excessively rigid constructs can lead to complications, necessitating revision surgery. This review focuses on approaches to improve bone healing by introducing adequate interfragmentary movement (IFM) at the fracture site. IFM promotes secondary fracture healing and callus formation. Studies suggest that rigid fixation may impair fracture healing by inhibiting callus formation and causing stress shielding. Titanium alloy locking plates have been shown to be biomechanically superior to stainless steel. Flexible fixation and techniques to regulate implant stiffness are crucial for managing fractures with bridge plating. Materials with a lower Young’s modulus balance biomechanical properties. A novel TiNbSn alloy with a low Young’s modulus has been developed to address stress shielding issues. It is effective in promoting osteosynthesis, bone healing, and superior mechanical properties compared with materials with higher Young’s moduli. The enhanced formation of bone and callus associated with TiNbSn alloy suggests its promise for use in fracture treatment plates. Understanding the biomechanics of fracture healing, optimizing fixation stiffness, and exploring innovative materials like TiNbSn alloys, are crucial for advancing approaches to accelerate and enhance bone healing.

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Section: Importance Of Interfragmentary Movement In Fracture Healingmentioning

confidence: 99%