Correlations between simulator task performance and intraoperative GEARS domains vary by task, and one study found no correlation between dVSS scores and intraoperative GEARS scores¶

Claim · All claims
Evidence · 1 study · quant-synthesis r2 · q2 · i3 large
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2024: tool and model accuracy changes quickly

Subclaims¶

q2 i3 Aghazadeh et al. found good correlations between dVSS scores and GEARS scores for most tasks (r = 0.582–0.784), with suturing and object-transfer tasks correlating best with bimanual dexterity (r = 0.716–0.763) and pick-and-place tasks with depth perception (r = 0.675–0.810); Mills et al. found no correlation between dVSS simulator scores and intraoperative GEARS scores. → Schmidt MW 2021

Evidence¶

Schmidt MW 2021¶

Schmidt MW, Köppinger KF, Fan C, Kowalewski K-F, Schmidt LP, Vey J, Proctor T, Probst P, Bintintan VV, Müller-Stich B-P, Nickel F. (2021). Virtual reality simulation in robot-assisted surgery: meta-analysis of skill transfer and predictability of skill. BJS Open. https://doi.org/10.1093/bjsopen/zraa066

q2 · i3 · quant-synthesis · r2

Cross-sectional study (Table 4) of 21 urological trainees and experts completing eight dVSS tasks before endopelvic fascia dissection assessment on human patients. The article reports suturing and object-transfer tasks "correlated best with bimanual dexterity (r = 0.716–0.763; P ≤ 0.001)" and pick-and-place tasks with depth perception (r = 0.675–0.810).

"suturing exercises (suture sponge 3 and tubes) as well as exercises moving objects in space (ring and rail 2) correlated best with bimanual dexterity (r = 0.716–0.763; P ≤ 0.001), whereas pick and place tasks (peg board 1 and 2, match board 3) and ring walk 3 correlated best with depth perception (r = 0.675–0.810, P ≤ 0.003)"

Discussion¶

Related Claims¶

• Hung et al. found a high correlation between GEARS scores for a simulated robotic partial nephrectomy and GEARS scores for the procedure on a live porcine model — related
• Virtual reality simulator performance has limited correlation with intraoperative robotic hysterectomy performance. — related
• Only two of the included studies demonstrated predictive validity of their metrics for live robotic hysterectomy performance. — related
• Robotic VR simulator performance is positively correlated with intraoperative performance, with a pooled correlation of r = 0.67 (95% CI 0.22 to 0.88) — a broader claim this one bears on