Corrigendum
You are viewing the correction.
VIEW THE CORRECTED ARTICLEPublication: Journal of Comparative Effectiveness Research
In the Systematic Review by Kara Sarrel, Daniel Hameed, Jeremy Dubin, Michael A Mont, David J Jacofsky and Andréa B Coppolecchia, “Understanding economic analysis and cost–effectiveness of CT scan-guided, 3-dimensional, robotic-arm assisted lower extremity arthroplasty: a systematic review”, which appeared in the April 2024 issue of the Journal of Comparative Effectiveness Research (13[4], e230040 [2024]), some errors occurred within the text and Tables, as detailed below. These corrections do not affect the overall conclusions of the article.
Text corrections are as follows:
| Original text: | Has been corrected to: |
|---|---|
| • For index UKAs, they found a shorter LOS (1.8 vs 2 days, p = 0.0047), lower index costs ($25,786 vs $26,307, p = 0.05), and a decreased 2-year rate of revision (0.81 vs 5.28%, p = 0.002) for rUKA compared with mUKA. | • For index UKAs, they found a shorter LOS (1.8 vs 2 days, p = 0.0047), lower index costs ($25,786 vs $26,307, p > 0.05), and a decreased 2-year rate of revision (0.81 vs 5.28%, p = 0.002) for rUKA compared with mUKA. |
| • They found a decreased LOS in the rTKA cohort (1.2 vs 1.6 days, p < 0.0001) and overall lower index costs during the hospitalization ($12,356. vs $15,586, p < 0.001) when compared… | • They found a decreased LOS in the rTKA cohort (1.2 vs 1.6 days, p < 0.0001) and overall lower index costs during the hospitalization ($14,189 vs $15,586, p < 0.001) when compared… |
| • They found a shorter LOS in the rTKA cohort compared with mTKA (1.5 vs 1.8 days, p < 0.001)… | • They found a shorter LOS in the rTKA cohort compared with mTKA (1.5 vs 1.6 days, p < 0.001)… |
| • A 2021 paper by Mont et al. [23] utilized data from the Medicare Standard Analytic Files from 2016 to 2017 to evaluate differences in rTKA vs mTKA groups with regards to 90-day EOC costs, discharge dispositions, post-discharge utilizations, and readmissions. When compared with mTKA, they found a lower LOS in the rTKA cohort (1.8 vs 2.5 days, p < 0.0001), decreased index costs during the hospitalization ($12,384 vs $13,024, p = 0.0001), lower post-discharge costs ($5234 vs $6978, p < 0.0001), and lower 90-day EOC costs ($18,568 vs $20,960, p < 0.0001). Fewer patients in the rTKA were discharged to a SNF or inpatient rehabilitation (15.2 vs 28.3%, p < 0.0007), with the average cost of SNF lower in the rTKA cohort as well ($7201 vs $7947, p = 0.0230) vs mTKA. Post-discharge utilization was lower in the rTKA cohort, with 61.3% utilizing home health services with an average cost of $3045 for an average of 11.7 home health visits, compared with 62.7% and $3536 for an average of 14 visits in the mTKA cohort. Patients in the rTKA cohort also had significantly fewer outpatient clinic visits in the first 90 days post-operatively (35.5 vs 42.9%, p < 0.0001). Readmissions were also lower in the rTKA cohort (5.2 vs 7.8%, p = 0.0423). They found a lower, but not statistically significant, 90-day utilization of ED services in the rTKA group (11.2 vs 13.3%, p = 0.1726) compared with mTKA. | • A 2021 paper by Mont et al. [23] utilized data from the Medicare Standard Analytic Files from 2016 to 2017 to evaluate differences in rTKA vs mTKA groups with regards to total episode payments, health care utilization, and readmissions, at 30-, 60-, and 90-day time points. When compared with mTKA, they found lower total episode payments in the rTKA cohort at 30 days, US $17,768 versus US$19,899 (p < 0.0001), at 60 days, US$18,174 versus US$20,492 (p < 0.0001), and at 90 days, US$18,568 versus US$20,960 (p < 0.0001). At 30 days, 47% fewer rTKA patients utilized skilled nursing facility (SNF) services (13.5 vs 25.4%; p < 0.0001) and had lower SNF costs at 30 days (US$6,416 vs US$7,732; p = 0.0040), 60 days (US$6,678 vs US$7,901, p = 0.0072), and 90 days (US$7,201 vs US$7,947, p = 0.0230). rTKA patients also utilized fewer home health visits and costs at each time point (p < 0.05). Additionally, 31.3% fewer rTKA patients utilized emergency room services at 30 days postoperatively and had 90-day readmissions (5.20 vs 7.75%; p = 0.0423). |
| • This study reported on a subset of patients undergoing primary THA from 2008 to 2017. | • This study reported on a subset of patients undergoing primary THA from 2008 to 2018. |
| • Of note, this study also found in-hospital THA dislocation to be lower in the rTHA cohort compared with mTHA (0.1 vs 0.8%, p < 0.001), as well as lower minor perioperative complications (12.8 vs 21.6%, p = 0.004). | • Of note, this study also found lower rates of THA dislocation (0.1 vs 0.8, p < 0.001), minor perioperative complications (12.8 vs 21.6%, p = 0.004 and implant related mechanical complications (0.5 vs 3.1%, p < 0.001) for rTHA compared to mTHA. |
| • This study also evaluated in-hospital post-operative complications and found a lower rate of major complications in the rTHA cohort (2.2 vs 3.3%, p < 0.001), and lower rates of in-hospital implant-related mechanical complications (0.5 vs 3.1%, p < 0.001). | • This study also evaluated in-hospital post-operative complications and found no significant difference in the odds of experiencing either a major or a minor complication. |
| • Compared with mTHA, LOS was lower in the rTHA cohort (2.3 vs 2.5 days, p = 0.0137), and fewer patients in the rTHA cohort were discharged to a SNF (27.1 vs 35.6%). In addition, rTHA patients spent fewer days at a SNF (18 vs 19.6 days), which amounted to a $1224 average cost savings compared with mTHA. Total overall costs of home health services were lower in the rTHA cohort ($3352 vs $3496). | • Compared with mTHA, LOS was lower in the rTHA cohort (2.3 vs 2.5 days, p = 0.0137), and fewer patients in the rTHA cohort were admitted to a SNF (20.8 vs 25.0%). In addition, rTHA patients spent fewer days at a SNF (18 vs 19.6 days), which amounted to a $1224 average cost savings compared with mTHA. Total overall costs of home health services were lower in the rTHA cohort ($3352 vs $3496). |
| • … found lower cumulative costs for rTHAs compared with mTHAs, for both Medicare ($14,811 ± 40 vs $16,189 ± 115) and private payor scenarios ($15, 212 ± 82 vs $17,022 ± 204). | • … found lower cumulative costs for rTHAs compared with mTHAs, for both Medicare ($14,410 ± 40 vs $15,355 ± 115) and private payor scenarios ($15, 212 ± 82 vs $17,022 ± 204). |
| • In a 2022 retrospective study, Kolessar et al. [19] evaluated a series of 178 patients (6 mUKAs, 19 rUKAs, 58 mTKAs, and 85 rTKAs)… | • In a 2022 retrospective study, Kolessar et al. [19] evaluated a series of 178 patients (6 mUKAs, 29 rUKAs, 58 mTKAs, and 85 rTKAs)… |
| • Robotic-arm assisted UKA patients had increased operating times (86 vs 75.9 min, p = 0.004), but a lower length of stay (1.8 vs 4.8 days, p < 0.001). | • Robotic-arm assisted UKA patients had increased operating times (86 vs 75.9 min, p = 0.004), but a lower length of stay (1.8 vs 4.5 days, p < 0.001). |
In addition, Tables 2–6 were published with errors. The correct tables are shown here:
| Cool et al. (2019) | Clement et al. (2019) | |||
|---|---|---|---|---|
| M | R | M | R | |
| Robotic system cost inclusion | N/A | No | N/A | Yes |
| CT-scan cost inclusion | N/A | No | N/A | Yes |
| Total (n) | 492 | 246 | - | - |
| LOS | 2 days | 1.8 days | ||
| In hospital costs | $26,307 | $25,786 | ||
| Post D/C costs | ||||
| 90-day EOC cost | ||||
| Use of HH services (%) | ||||
| HH visits (n) | ||||
| Cost of home health | ||||
| Outpatient rehab costs | ||||
| Revision (1 year) | 5.3% | 0.8% | 1.1% | 0.5% |
| Increase in QALYs | 1.39 | 1.80 | ||
| $/QALY | $1170 | $1395 | ||
D/C: Discharge; ED: Emergency department; EOC: Episode of care; HH: Home healthcare; ICER: Incremental cost-effectiveness ratio; LOS: Length of stay; M: Manual; QALY: Quality-adjusted life-year; R: Robot; SNF: Skilled nursing facility.
| Cotter et al. (2020) | Mont et al. (2021) | Pierce et al. (2020) | Cool et al. (2019) | Tompkins et al. (2022) | Fang et al. (2022) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Category | M | R | M | R | M | R | M | R | M | R | M | R |
| Robotic system cost inclusion | N/A | Yes | N/A | No | N/A | No | N/A | No | N/A | Yes | N/A | No |
| CT scan cost inclusion | N/A | No | N/A | No | N/A | No | N/A | No | N/A | No | N/A | No |
| Total (n) | 139 | 147 | 2595 | 519 | 1785 | 357 | 2595 | 519 | 2392 | 2392 | 1795 | 263 |
| LOS | 1.6 | 1.2 | 2.5 | 1.8 | 2.7 | 1.8 | 2.5 | 1.8 | 1.84 | 1.76 | 2.1 | 1.8 |
| In-hospital costs | $15,586 | $14,189 | $13,024 | $12,384 | $24,069 | $21,347 | $13,024 | $12,384 | $16,330 | $21,006 | X | 1.1X |
| Post D/C costs | $2134 | $1441 | $6978 | $5234 | $8189 | $6857 | $6978 | $5234 | ||||
| 90-day EOC cost | $17,721 | $15,630 | $20,960 | $18,568 | $32,253 | $28,204 | $20,960 | $18,568 | ||||
| Discharge to SNF/rehab | 8.6% | 4.1% | 28.3% | 15.22% | 6.1% | 1.7% | 28.2% | 15.2% | 5.0% | 5.0% | 6.3% | 1.5% |
| Cost of SNF | $7947 | $7201 | $7849 | $6269 | ||||||||
| Use of HH services | 62.7% | 61.3% | 69.2% | 67.0% | 29.0% | 38.0% | ||||||
| HH visits (n) | 14 | 11.7 | 6.4 | 5.3 | 14.3 | 11.9 | ||||||
| Cost of home health | $3536 | $3045 | $2038 | $2009 | $3536 | $3045 | ||||||
| Outpatient rehab costs | $746 | $802 | $2494 | $2272 | ||||||||
| Readmission within 90 days | 4.3% | 2.7% | 7.8% | 5.2% | 3.9% | 2.2% | 7.8% | 5.2% | 4.9% | 1.2% | ||
| Average readmission costs | $305 | $73.37 | $24,289 | $13,328 | $9696 | $10,570 | ||||||
| Utilizing emergency department (ED) in 90 days post D/C | 7.9% | 8.8% | 13.3% | 11.2% | 9.0% | 9.0% | 13.3% | 11.20% | ||||
| ED costs in 90 days post D/C | $147 | $57 | $736 | $614 | $4179 | $7033 | $736 | $614 | ||||
| In-hospital periprosthetic fracture | 0.7% | 0.0% | ||||||||||
D/C: Discharge; ED: Emergency department; EOC: Episode of care; HH: Home healthcare; ICER: Incremental cost-effectiveness ratio; LOS: Length of stay; M: Manual; PPFx: Periprosthetic fracture; QALY: Quality-adjusted life-year; R: Robot; SNF: Skilled nursing facility.
| Rajan et al. (2022) | Ong et al. (2022) | Gregory et al. (2022) | Grosso et al. (2022) | Hua et al. (2022) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Category | M | R | M | R | M | R | M | R | M | R |
| Robotic system cost inclusion | N/A | Yes | N/A | No | N/A | No | N/A | Yes | N/A | Yes |
| CT scan cost inclusion | N/A | Yes | N/A | No | N/A | Yes | N/A | No | N/A | No |
| Total (n) | 3710 | 742 | 4135 | 4135 | 460 | 460 | ||||
| LOS | 1.91 | 1.56 | 1.98 | 1.74 | 1.6 | 1.5 | ||||
| In-hospital costs | $34,509 | $32,747 | $31,280 | $29,984 | $28,737 | $33,581 | ||||
| Post D/C costs | $6949 | $6513 | $7728 | $7189 | $6983 | $4066 | $2397 | $1618 | ||
| 90-day EOC cost | $41,458 | $39,260 | $39,008 | $37,174 | $20,608 | $17,777 | $31,134 | $32,018 | ||
| Discharge to SNF/rehab (%) | 12.2 | 5.9 | ||||||||
| Cost of SNF | $135 | $91 | ||||||||
| Use of HH services | 72% | 68.5% | ||||||||
| HH visits (n) | ||||||||||
| Cost of home health | $1394 | $1354 | $374 | $404 | ||||||
| Outpatient rehab costs | $3151 | $1865 | ||||||||
| Readmission within 90 days | 15% | 14.8% | 2.39% | 2.83% | ||||||
| Average readmission costs | $2137 | $1781 | ||||||||
| Total discounted cost | $31,917 | $32,535 | ||||||||
| Revision (1 year) | 0.8% | 0.3% | 0.7% | 0.3% | ||||||
| In-hospital PPFx | 0.03% | 0.0% | ||||||||
| Increase in QALYs | 13.29 | 13.55 | 6.17 | 6.18 | ||||||
| ICER - R ($/QALY) | $15,685 | $41,331 | ||||||||
D/C: Discharge; ED: Emergency department; EOC: Episode of care; HH: Home healthcare; ICER: Incremental cost-effectiveness ratio; LOS: Length of stay; M: Manual; PPFx: Periprosthetic fracture; QALY: Quality-adjusted life-year; R: Robot; SNF: Skilled nursing facility.
| Emara et al. (2021) | Kirchner et al. (2021) | Pierce et al. (2021) | Clement et al. (2022) | Barsoum et al. (2022) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Category | M | R | M | R | M | R | M | R | M | R |
| Robotic system cost inclusion | N/A | No | N/A | No | N/A | No | N/A | Yes | N/A | No |
| CT scan cost inclusion | N/A | No | N/A | No | N/A | No | N/A | Yes | N/A | Yes |
| Total (n) | 128,356 | 32,092 | 758 | 758 | 4670 | 938 | 512 | 48 | 8660 | 1732 |
| LOS | 2.3 | 2.2 | 2.8 | 2.7 | 2.5 | 2.3 | 1.7 | 1.5 | ||
| In-hospital costs | $17,266 | $18,416 | $18,258 | $20,046 | $12,665 | $12,827 | $32,804 | $31,507 | ||
| Post D/C costs | $7854 | $6907 | $4205 | $3929 | ||||||
| 90-day EOC cost | $20,519 | $19,734 | $37,009 | $35,436 | ||||||
| Discharge to SNF/rehab | 18.5% | 17.4% | 27.7% | 20.8% | ||||||
| Use of HH services | 64.9% | 72.9% | ||||||||
| Cost of home health | $3496 | $3352 | ||||||||
| Utilizing ED in 90 days post D/C | 13.5% | 13.6% | ||||||||
| ED costs in 90 days post D/C | $786 | $715 | ||||||||
| Revision (1 year) | 0.40% | 0.40% | ||||||||
| In-hospital PPFx | 0.5% | 0.2% | ||||||||
| Increase in QALYs | 1.06 | |||||||||
| ICER - R ($/QALY) | £1432 | |||||||||
D/C: Discharge; ED: Emergency department; EOC: Episode of care; HH: Home healthcare; ICER: Incremental cost-effectiveness ratio; LOS: Length of stay; M: Manual; PPFx: Periprosthetic fracture; QALY: Quality-adjusted life-year; R: Robot; SNF: Skilled nursing facility.
| Kolessar et al. (2022) | Varughese et al. (2022) | |||||
|---|---|---|---|---|---|---|
| Category | UKA (M) | UKA (R) | TKA (M) | TKA (R) | UKA (R) | TKA (M) |
| Robotic system cost inclusion | N/A | No | N/A | No | No | N/A |
| CT-scan cost inclusion | N/A | Yes | N/A | Yes | Yes | N/A |
| Total (n) | 6 | 19 | 58 | 85 | 120 | 120 |
| LOS | 1.6 | 1.4 | 1.8 | 1.8 | ||
| In-hospital costs | $3287 | $4025 | $4087 | $4668 | $12,020 | $19,199 |
| 90-day EOC cost | $1239 | $1051 | $1602 | $1196 | ||
| Use of HH services | 83.0% | 17.0% | 29.0% | 6.0% | ||
| HH visits (n) | 5 | 5 | 17 | 5 | ||
| Cost of home health | $609 | $241 | ||||
| Outpatient rehab costs | $482 | $137 | ||||
| Opioids - R UKA (ME) | 125 | |||||
| Opioids - M TKA (ME) | 522.1 | |||||
D/C: Discharge; ED: Emergency department; EOC: Episode of care; HH: Home healthcare; ICER: Incremental cost-effectiveness ratio; LOS: Length of stay; M: Manual; ME: Morphine equivalents; PPFx: Periprosthetic fracture; QALY: Quality-adjusted life-year; R: Robot; SNF: Skilled nursing facility; TKA: Total knee arthroplasty; UKA: Unicompartmental knee arthroplasty.
The authors and editors of the Journal of Comparative Effectiveness Research would like to sincerely apologize for any inconvenience or confusion this may have caused our readers.
Information & Authors
Information
Published In
Copyright
© 2024 Becaris Publishing Limited. This work is licensed under the Attribution-NonCommercial-NoDerivatives 4.0 Unported License
History
Published online: 2 August 2024
Authors
Metrics & Citations
Metrics
Article Usage
Article usage data only available from February 2023. Historical article usage data, showing the number of article downloads, is available upon request.
Citations
How to Cite
Corrigendum. (2024) Journal of Comparative Effectiveness Research. DOI: 10.57264/cer-2024-0126
Export citation
Select the citation format you wish to export for this article or chapter.