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To determine the effort required to provide a service, the United States Medicare uses Relative Value Units (RVUs). Consequently, higher RVUs are assigned to the procedures or services that require more effort, which ultimately means the physician will be properly compensated for the additional effort required. In total ankle arthroplasty (TAA), revision cases usually are more technically challenging and require more effort than primary TAA. Therefore, the purpose of this study was to compare the: 1) RVUs; 2) length-of-surgery; 3) RVU per unit of time between primary and revision total ankle arthroplasty; and 4) the individualized idealized surgeon annual cost difference analysis.We utilized the American College of Surgeons, National Surgical Quality Improvement Program database from 2008 to 2015 to identify patients who underwent either a primary Current Procedural Terminology [CPT]: 27702) or revision (CPT: 27703) TAA. There were a total of 653 patients, 586 of which underwent a primary, and 67 who underwent a revision, TAA. The mean RVUs, length of surgery (in minutes), and RVU per minute, were calculated. Dollar amount per minute, per case, per day, and per year, to find an individualized idealized surgeon annual cost difference, were also calculated. An analysis of variance was used to compare variables between primary and revision TAA. A p-value of less than 0.05 was used to determine statistical significance.The mean RVU was significantly higher in revision versus primary TAA (16.93 vs. 14.41, p=0.001). However, there was no significant difference in the mean lengths of surgery between primary and revision TAA (160 vs. 157 minutes, p=0.613). Additionally, the mean RVU per minute was significantly higher in revision versus primary TAA (0.13 vs. 0.10, p=0.001).Based on the results of this study, it appears that revision TAA cases are appropriately assigned a higher RVU per minute for performing them as they require more effort and are more challenging compared to the primary TAA. Furthermore, not only did the revision cases have lower mean lengths of surgery, but they also maintained a higher RVU per minute. Therefore, orthopaedists can use this information to further help them yield the best potential practice design. |
