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Abstract
Aim To study the effect of cooling of polymethylmethacrylate dough in an ice bath to prolong working time of cement during percutaneous kyphoplasty.
Materials and methods Polymethylmethacrylate dough filled cement cartridges were placed in a saline ice bath for varying lengths of time to study the effect of cooling cartridges on working time of cement during percutaneous kyphoplasty using the Kyphon® (Medtronic Spine, Sunnyvale, CA, USA) Balloon Kyphoplasty system.
Results Cement dough was easily injectable through the bone filler with the injection gun immediately after removal from an ice bath at 15, 30, and 60 minutes of storage. Consistency of the mixture was ideally doughy at all time points. After 15 minutes at room temperature, the mixture continued to be injectable with slightly more resistance at these time points. The mixture was more firm yet maintained a doughy consistency. Cement dough could not be injected after 120 minutes of storage, either immediately after removal or after 15 minutes at room temperature.
Conclusion We demonstrate the prolongation of working time of polymethylmethacrylate cement in percutaneous kyphoplasty using ice bath cooling of dough filled cement cartridges. Cement dough was injectable after storage in an ice bath for up to 60 minutes. In the clinical setting, intraprocedual cooling using this simple, low cost technique may extend the working time of polymethylmethacrylate for the operator and may improve the utility of a single Balloon Kyphoplasty kit when treating multiple vertebral compression fractures.
Disclosures B. Kim: None.
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