Heckmann Nathanael D, Mayfield Cory K, Richardson Mary K, Liu Kevin C, Wang Jennifer C, Piple Amit S, Stambough Jeffrey B, Oakes Daniel A, Christ Alexander B, Lieberman Jay R
Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA.
Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Arthroplast Today. 2024 Feb 28;26:101336. doi: 10.1016/j.artd.2024.101336. eCollection 2024 Apr.
Inpatient total hip arthroplasty (THA) and total knee arthroplasty (TKA) practices were dramatically affected in the United States in 2020 as elective surgeries were paused in response to the COVID-19 pandemic. This study sought to provide an updated estimate of inpatient total joint arthroplasty (TJA) case volumes in the United States in 2020.
A retrospective cohort study was performed by identifying all adult patients who underwent primary, elective TJA from January 1st, 2017 to December 31st, 2020, using the National Inpatient Sample. Monthly and annual case volumes were reported with descriptive statistics. Baseline case volumes were established by taking the average number of monthly cases performed in 2017, 2018, and 2019. These monthly averages were compared to 2020 values.
From 2017 to 2019, the average case volume was 1,056,669 cases per year (41.0% THA, 59.0% TKA) and 88,055 cases per month. In 2020, 535,441 cases were identified (45.4% THA, 54.6% TKA), corresponding to a 49.3% reduction from the 2017-2019 annual average. Monthly cases decreased to 4515 in April during the "first wave" of COVID-19, corresponding to a 94.8% decrease from prior years. In June, cases rebounded to 55,520 before decreasing again in July to 50,100 during the "second wave" of COVID-19. During the "third wave," COVID-19 cases decreased month-over-month from October through December (56.5% decrease).
This updated estimate identified a 49.3% decrease in inpatient TJA cases in 2020 compared to prior years. This is similar to the 46.5-47.7% decrease in case volume previously reported.
2020年，美国的住院全髋关节置换术（THA）和全膝关节置换术（TKA）业务受到了极大影响，因为为应对新冠疫情，择期手术被暂停。本研究旨在提供2020年美国住院全关节置换术（TJA）病例数量的最新估计。
通过使用国家住院样本，对2017年1月1日至2020年12月31日期间接受初次择期TJA的所有成年患者进行回顾性队列研究。报告每月和每年的病例数量，并进行描述性统计。通过计算2017年、2018年和2019年每月病例的平均数来确定基线病例数量。将这些月平均数与2020年的值进行比较。
2017年至2019年，平均病例数量为每年1,056,669例（THA占41.0%，TKA占59.0%），每月88,055例。2020年，共识别出535,441例（THA占45.4%，TKA占54.6%），比2017 - 2019年的年均数量减少了49.3%。在新冠疫情“第一波”期间，4月份的月病例数降至4515例，比前几年减少了94.8%。6月份病例数反弹至55,520例，随后在7月份新冠疫情“第二波”期间再次降至50,100例。在“第三波”期间，10月至12月新冠病例逐月减少（减少了56.5%）。
与前几年相比，此次更新的估计显示2020年住院TJA病例减少了49.3%。这与之前报告的病例数量减少46.5 - 47.7%相似。
