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In Vitro Inhibitive Effect Of Antibiotic-Loaded Beads To Chronic Osteomyelitis: Hand-Made Vs Commercial Beads

In Vitro Inhibitive Effect Of Antibiotic-Loaded Beads To Chronic Osteomyelitis: Hand-Made Vs Commercial Beads
Hermawan N. Rasyid, Kuspriyanto, Tati R. Mengko, Soegijardjo Soegijoko, Jim R. van Horn, Henny C. van der Mei, Henk J. Busscher, Daniëlle Neut
Unpad, ITB, University of Groningen, The Netherlands
Indonesia
Unpad, ITB, University of Groningen, The Netherlands
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Di bidang orthopaedi, campuran antibiotik-semen tulang berbentuk beads (antibiotic-loaded beads) telah diterima sebagai pengobatan standar untuk mematikan kuman patogen pada osteomielitis kronis. Satu-satunya campuran antibiotik-semen tulang yang ada di pasaran adalah Septopal®, berharga mahal dan hanya berisi gentamicin. Tujuan dari penelitian ini adalah membandingkan secara in vitro daya mematikan bakteri antara hand-made antibiotik-semen tulang (fosfomycin-sodium) dengan yang ada di pasaran yaitu Septopal® terhadap sepuluh jenis bakteri patogen pada osteomielitis kronis, pada waktu yang ditetapkan. Hasil menunjukkan bahwa Septopal® efektif mematikan delapan dari sepuluh bakteri. Sedangkan hand-made fosfomycin beads hanya efektif terhadap dua jenis bakteri yaitu Staphylococcus aureus 7323 dan CNS 7391. Dapat diambil kesimpulan bahwa Septopal® dapat mematikan sebagian besar jenis bakteri dibandingkan dengan hand-made fosfomycin beads. Walaupun efektifitas hand-made fosfomycin beads ini minimal, keberhasilan klinis sangat didukung oleh ketelitian pada saat tindakan operasi dan pemberian antibiotik secara Sistemik.

Local antibiotic-loaded beads have been approved for standard treatment of orthopaedic pathogens, especially chronic osteomyelitis. Septopal®, the only commercial local antibiotic bead available on the market, is expensive and contains only gentamicin. This study aimed to compare the in vitro inhibitive effect of hand-made antibiotic-loaded beads (fosfomycin-sodium) with Septopal® for ten bacterial strains of chronic osteomyelitis by diffussion technique at various indicated time points. The results showed that Septopal® could inhibit all bacterial strains except CNS 7334 and CNS 7391. Hand-made fosfomycin beads were only slightly effective in two of the ten bacterial strains is used (Staphylococcus aureus 7323 and CNS 7391). In conclusion, this study demonstrated that Septopal® can inhibit common orthopaedic pathogens better than hand-made antibiotic beads in vitro study, however, good clinical results achieved with hand-made fosfomycin beads must come from the combination of thorough debridement together with the systemic antibiotics.

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