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Bone & Joint Research
Vol. 11, Issue 5 | Pages 260 - 269
3 May 2022
Staats K Sosa BR Kuyl E Niu Y Suhardi V Turajane K Windhager R Greenblatt MB Ivashkiv L Bostrom MPG Yang X

Aims

To develop an early implant instability murine model and explore the use of intermittent parathyroid hormone (iPTH) treatment for initially unstable implants.

Methods

3D-printed titanium implants were inserted into an oversized drill-hole in the tibiae of C57Bl/6 mice (n = 54). After implantation, the mice were randomly divided into three treatment groups (phosphate buffered saline (PBS)-control, iPTH, and delayed iPTH). Radiological analysis, micro-CT (µCT), and biomechanical pull-out testing were performed to assess implant loosening, bone formation, and osseointegration. Peri-implant tissue formation and cellular composition were evaluated by histology.