Objective psychomotor laparoscopic skills evaluation using a low-cost wearable device based on accelerometry: construct and concurrent validity study

Franco-González, Iván Tlacaélel; Minor-Martínez, Arturo; Ordorica-Flores, Ricardo; Azuela, Juan Humberto Sossa; Pérez-Escamirosa, Fernando

doi:10.1007/s00464-023-09953-4

Cited by 1 publication

(2 citation statements)

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“…A vision-based forceps motion measurement system was also developed and utilized to analyze the skills of surgeons [12,13]. However, the surgical skill analysis in dry-lab training [4][5][6][7] focused only on fundamental laparoscopic procedures such as handling forceps and suturing/knotting. Although forceps motion measurements conducted during wet-lab training using a porcine cadaver organ [8] is more practical than that during dry-lab training, the training task did not involve forceps exchange, and the skills that could be measured were limited.…”

Section: Plos Onementioning

confidence: 99%

“…Oropesa et al [ 4 ] and Chmarra et al [ 5 ] measured and analyzed the motion of surgical instruments for handling tasks such as pipe cleaners and peg transfer in a dry lab, respectively. Kowalewski et al [ 6 ] and Franco-González et al [ 7 ] performed motion analysis of needle drivers in the suturing/knotting task conducted in a dry lab. In a wet lab, Hofstad et al [ 8 ] conducted cholecystectomy surgical measurements and an analysis of a porcine liver box model.…”

Section: Introductionmentioning

confidence: 99%

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A surgical instrument motion measurement system for skill evaluation in practical laparoscopic surgery training

Ebina,

Abe,

Yan

et al. 2024

PLoS ONE

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This study developed and validated a surgical instrument motion measurement system for skill evaluation during practical laparoscopic surgery training. Owing to the various advantages of laparoscopic surgery including minimal invasiveness, this technique has been widely used. However, expert surgeons have insufficient time for providing training to beginners due to the shortage of surgeons and limited working hours. Skill transfer efficiency has to be improved for which there is an urgent need to develop objective surgical skill evaluation methods. Therefore, a simple motion capture–based surgical instrument motion measurement system that could be easily installed in an operating room for skill assessment during practical surgical training was developed. The tip positions and orientations of the instruments were calculated based on the marker positions attached to the root of the instrument. Because the patterns of these markers are individual, this system can track multiple instruments simultaneously and detect exchanges. However due to the many obstacles in the operating room, the measurement data included noise and outliers. In this study, the effect of this decrease in measurement accuracy on feature calculation was determined. Accuracy verification experiments were conducted during wet-lab training to demonstrate the capability of this system to measure the motion of surgical instruments with practical accuracy. A surgical training experiment on a cadaver was conducted, and the motions of six surgical instruments were measured in 36 cases of laparoscopic radical nephrectomy. Outlier removal and smoothing methods were also developed and applied to remove the noise and outliers in the obtained data. The questionnaire survey conducted during the experiment confirmed that the measurement system did not interfere with the surgical operation. Thus, the proposed system was capable of making reliable measurements with minimal impact on surgery. The system will facilitate surgical education by enabling the evaluation of skill transfer of surgical skills.

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