Alendronate Inhibits Bone Resorption at the Bone-screw Interface

Autor: Yoshiaki Azuma, Nobuyuki Shimizu, Yasuo Uchiyama, Takanobu Nakase, Hideki Yoshikawa, Takahiro Miyaji
Rok vydání: 2005
Předmět:
Zdroj: Clinical Orthopaedics & Related Research. 430:195-201
ISSN: 0009-921X
DOI: 10.1097/01.blo.0000137553.91189.67
Popis: In the current study, we investigated whether the systemic administration of alendronate, a third-generation bisphosphonate, suppressed the loosening of screws at the bone-screw interface. We systemically administered alendronate to rats fitted with external fixators. External fixators with two half pins were applied to the right femurs of rats, and alendronate was administrated once a week during a 5-week postoperative period. Radiographic, histologic, and immuno-histochemical findings subsequently were analyzed. Treatment with alendronate reduced the width of the fibrous loosening membrane and the number of osteoclasts at the bone-screw interface. These findings indicate that systemic treatment with alendronate exerts an inhibitory effect on local bone resorption at the bone-screw interface.
Databáze: OpenAIRE