Open Access
Table 2
NAVI and VRAS time analysis results.
| NAVI | VRAS | Effect size | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Characteristics | Mean ± SD | Range | Median | IQR | Mean ± SD | Range | Median | IQR | p-value | MD | 95% CI |
| Total OR time (min) | 72.87 ± 6.72 | 61.37–80.95 | 74.49 | 67.48–78.36 | 69.40 ± 7.08 | 60.07–83.32 | 67.86 | 65.81–70.58 | n.s. | 3.47 | −3.0 to 9.9 |
| Preparation time (min) | 22.16 ± 3.39 | 15.48–27.02 | 21.33 | 20.81–24.27 | 21.77 ± 2.52 | 16.23–25.77 | 21.76 | 21.10–22.92 | n.s. | 0.39 | −2.4 to 3.2 |
| Surgery time (min) | 38.89 ± 4.39 | 32.73–45.60 | 38.09 | 35.43–42.70 | 34.30 ± 5.43 | 26.98–43.75 | 33.58 | 30.19–36.38 | n.s. | 4.59 | −0.1 to 9.2 |
| Breakdown time (min)* | 11.71 ± 2.94 | 8.58–19.32 | 11.08 | 10.20–11.87 | 12.61 ± 2.98 | 8.92–18.78 | 11.85 | 10.95–14.33 | n.s. | −.89 | 0.4 to 4.6 |
| Prep knee (min) | 9.87 ± 1.42 | 8.32–12.67 | 9.28 | 8.85–10.94 | 10.66 ± 1.39 | 8.83–12.92 | 10.30 | 9.70–11.63 | n.s. | −.79 | −2.1 to 0.5 |
| TKR resection (min) | 11.63 ± 2.21 | 9.07–16.02 | 11.43 | 10.03–11.87 | 8.57 ± 1.79 | 5.47–10.98 | 8.62 | 7.69–9.61 | 0.03 | 3.06 | 1.2 to 5.0 |
| TKR trial (min) | 2.75 ± 1.29 | 1.07–4.55 | 2.61 | 1.82–3.90 | 1.95 ± 0.93 | 0.65–3.80 | 1.76 | 1.55–2.50 | n.s. | .80 | −0.7 to 5.2 |
| TKR implants (min) | 5.97 ± 1.61 | 3.77–8.33 | 5.68 | 4.87–7.22 | 5.34 ± 0.98 | 3.23–6.50 | 5.44 | 5.13–6.00 | n.s. | .63 | −0.3 to 1.9 |
| Sewing* (min) | 8.67 ± 2.72 | 6.37–14.30 | 7.78 | 6.89–8.59 | 7.79 ± 3.55 | 4.53–12.45 | 5.88 | 4.78–11.59 | n.s. | .88 | −2.1 to 3.9 |
| Knee approach (min) | 6.60 ± 0.58 | 5.88–7.90 | 6.68 | 6.19–6.79 | 7.28 ± 1.38 | 5.13–9.70 | 7.27 | 6.44–7.70 | n.s. | −.68 | −1.7 to 0.3 |
| Landmarking (min)* | 1.52 ± 0.54 | 1.08–2.85 | 1.38 | 1.13–1.54 | 1.74 ± 0.31 | 1.25–2.27 | 1.73 | 1.53–1.94 | n.s. | −.23 | −0.6 to 0.2 |
| Evaluation (min) | 0.58 ± 0.27 | 0.28–1.22 | 0.53 | 0.40–0.64 | 0.73 ± 0.37 | 0.25–1.45 | 0.57 | 0.52–0.94 | n.s. | −.15 | −0.5 to 0.2 |
| Surgical planning* (min) | 1.18 ± 0.69 | 0.60–2.48 | 0.87 | 0.70–1.53 | 0.91 ± 0.40 | 0.35–1.52 | 0.93 | 0.60–1.23 | n.s. | .26 | −0.3 to 0.8 |
*Nonparametric value based on the Mann–Whitney U test.
Abbreviations: Navi: navigation; VRAS: Velys robotic-assisted surgery; SD: standard deviation; IQR: interquartile range; MD: mean difference; CI: confidence interval.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.