Incavo S J, Ronchetti P J, Choi J H, Wu H, Kinzig M, Sörgel F
University Orthopaedics, University of Vermont, Burlington 05405.
Antimicrob Agents Chemother. 1994 Apr;38(4):905-7. doi: 10.1128/AAC.38.4.905.
The penetration characteristics of piperacillin-tazobactam into cortical and cancellous bone tissues were investigated in 10 patients undergoing total hip replacement. The concentration ratios of piperacillin/tazobactam were 9.4 +/- 1.8 in cancellous bone tissue and 8.0 +/- 2.2 in cortical bone tissue, which were close to the 8:1 ratio of drugs administered. The mean ratios of drug concentrations in bone and plasma for cancellous and cortical tissue were 23 and 18%, respectively, for piperacillin and 26 and 22%, respectively, for tazobactam. The concentrations of tazobactam achieved are sufficient to exert anti-beta-lactamase activity and supportive of clinical trials involving bone and joint infections, including those caused by beta-lactamase-producing pathogens.
在10例接受全髋关节置换术的患者中,研究了哌拉西林-他唑巴坦在皮质骨和松质骨组织中的渗透特性。哌拉西林/他唑巴坦在松质骨组织中的浓度比为9.4±1.8,在皮质骨组织中的浓度比为8.0±2.2,接近给药药物的8:1比例。对于哌拉西林,松质骨和皮质组织中骨与血浆药物浓度的平均比值分别为23%和18%,对于他唑巴坦分别为26%和22%。所达到的他唑巴坦浓度足以发挥抗β-内酰胺酶活性,并支持涉及骨和关节感染(包括由产β-内酰胺酶病原体引起的感染)的临床试验。