An Innovative Approach to Produce Silicone Mold-Based Antibiotic-Loaded Knee Spacer for Infected Knee Arthroplasty

Document Type : CASE REPORT

Authors

1 Department of Surgery, School of Medicine, Imam Ali Hospital, North Khorasan University of Medical Sciences

2 Student research committee, School of Medicine, Imam Ali Hospital, North Khorasan University of Medical Sciences

3 Department of Medical Physics and Radiology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran

Abstract

This study aimed to evaluate the efficacy of antibiotic -loaded cement articulating spacers produced 
through a silicone mold in the two-stage revision of infected total knee arthroplasty. Five individuals 
were prospectively treated with 2-stage revision using spacers made by this mold. Clinical assessment 
was conducted during and after implantation using the WOMAC Score, Oxford knee score, and range 
of motion (ROM). The results showed that the ROM increased by an average of 35 degrees during the 
spacer stage, with an average ROM of 100 degrees. Furthermore, there was an average gain of 85.2 
points in the Knee Society Score and an average rise of 22.8 points in the total WOMAC scores. This 
approach had a similar effect on improving infection, motion performanc e, and patients’ satisfaction 
with metal articular molds but without high-technology equipment and low-cost price. Therefore, this 
method could be applied to any operating room that performs arthroplasty surgery.
 Level of evidence: IV

Keywords

Main Subjects


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