Alignment Accuracy and Cost-Savings Threshold of Patient-Specific Instrumentation In Total Ankle Replacements:

Foot & Ankle Orthopaedics

KamranHamid¹ 

关键词: total ankle replacement;    TAR;    computer navigation;    patient-specific instrumentation;    alignment;    accuracy;    cost;    value;   

DOI  :  10.1177/2473011417S000001

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Category:Ankle ArthritisIntroduction/Purpose:Traditional intraoperative referencing for total ankle replacements (TAR) involves multiple steps and fluoroscopic guidance to determine mechanical alignment. Recent adoption of patient-specific instrumentation (PSI) allows for referencing to be determined preoperatively, resulting in less steps and potentially decreased operative time. We hypothesize that usage of PSI will result in decreased operating room time that offsets the additional cost of PSI as compared to standard referencing (SR). Additionally, we aim to demonstrate similar postoperative radiographic alignment between PSI and SR.Methods:Between 2014 and 2015, 87 patients undergoing TAR were enrolled in a prospectively collected TAR database. Patients were divided into cohorts based on PSI versus SR and operative times were reviewed. Radiographic alignment parameters were retrospectively measured at 6 weeks postoperatively. Time-driven activity-based costing (TDABC) was utilized to derive direct cos...

【 授权许可】

CC BY