Osteomyelitis: Focus on Conventional Treatments and Innovative Drug Delivery Systems

Author(s): Marina Gallarate, Daniela Chirio*, Giulia Chindamo, Elena Peira, Simona Sapino

Journal Name: Current Drug Delivery

Volume 18 , Issue 5 , 2021

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Graphical Abstract:


Osteomyelitis is a bone marrow infection which generally involves cortical plates and which may occur after bone trauma, orthopedic/maxillofacial surgery or after vascular insufficiency episodes. It mostly affects people from the Third World Countries, the elderly and patients affected by systemic diseases e.g. autoimmune disorders, AIDS, osteoporosis and microvascular disease. The highest percentage of osteomyelitis cases (almost 75%) is caused by Staphylococcus spp., and in particular by Staphylococcus aureus (more than 50%). The ideal classification and the diagnosis of osteomyelitis are two important tools which help the physicians to choose the best therapeutic strategies. Currently, common therapies provide an extensive debridement in association with intravenous administration of antibiotics (penicillin or clindamycin, vancomycin and fluoroquinolones among all for resistant microorganisms), to avoid the formation of sequestra. However, conventional therapeutic approach involves several drawbacks like low concentration of antibiotics in the infected site, leading to resistance and adverse effects due to the intravenous administration. For these reasons, in the last years several studies have been focused on the development of drug delivery systems such as cements, beads, scaffolds and ceramics made of hydroxyapatite (HA), calcium phosphate (CaP) and β-tricalcium phosphate (β-TCP) which demonstrated to be biocompatible, poorly toxic and capable to allow osteointegration and a prolonged drug release. The aim of this review is to provide a focus on current therapies and latest developed drug delivery systems with particular attention on those based on CaP and its derivatives, hoping that this work could allow further direction in the field of osteomyelitis.

Keywords: Osteomyelitis, drug delivery systems, antibiotic, bone, calcium phosphate, hydroxyapatite, cement.

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Article Details

Year: 2021
Published on: 14 September, 2020
Page: [532 - 545]
Pages: 14
DOI: 10.2174/1567201817666200915093224
Price: $65

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