This is a randomized controlled trial that will randomize 40 surgical skill naive medical students to practice on a robotic simulator or laparoscopic simulator after first completing a baseline evaluation on both surgical simulation platforms. Medical students will be evaluated again after 10 practice sessions on the laparoscopic or robotic platforms to assess transferability of skills between the surgical simulation platforms.
This is a randomized controlled trial that will randomize medical students to practice on a robotic simulator or a laparoscopic simulator. The investigators will first obtain baseline data by having the study participants perform one task (peg transfer exercise) on a laparoscopic simulator (Fundamentals of Laparoscopic Surgery (FLS), VT Medical Inc, Waltham, MA), and a similar task on a robotic trainer (Mimic da Vinci Simulator, Intuitive Surgical, Sunnyvale, CA). Participants will then be randomized to practice on the robotic simulator or practice on the laparoscopic trainer for at least 10 repetitions. After the participants complete 10 repetitions, they will be evaluated again on both the laparoscopic and robotic simulator using time to task completion and Mimi DV trainer motion metrics. Two expert laparoscopic and robotic surgeons will also evaluate participant performance using previously validated global rating scales for robotic and laparoscopic surgery.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
40
10 repetitions of practice on laparoscopic simulator.
10 repetitions of practice on Mimic da Vinci robotic simulator.
Time to Task Completion (Robotic Task)
Primary outcome will be time to task completion (seconds) on the robotic task
Time frame: 1 day of practice
Global Rating Scale Score on the Laparoscopic Task
Global rating scale score on the laparoscopic task. A composite score of (1) depth perception, (2) bimanual dexterity, (3) efficiency, (4) tissue handling, (5) time and motion, (6) instrument handling, and (7) flow of operation, each scored 1 through 5 on an anchored Likert scale where higher scores indicated improved proficiency. Point range 7 - 35.
Time frame: Study duration
Global Rating Scale Score on the Robotic Task
A composite score of (1) depth perception, (2) bimanual dexterity, (3) efficiency, (4) tissue handling, (5) time and motion, (6) instrument handling, and (7) flow of operation, each scored 1 through 5 on an anchored Likert scale where higher scores indicated improved proficiency. Point range 7 - 35.
Time frame: Study duration
Time to Task Completion on the Laparoscopic Task
Time to task completion (seconds) on the laparoscopic task
Time frame: 1 day of practice
Economy of Motion on the Robotic Task
(cm, where lower measurements represent improved economy of motion). This measures how many cm the instruments traveled in order to accomplish the task
Time frame: Study duration
Instrument Out of View
Automatically recorded data on the Mimic DV trainer, (sec). The longer out of view indicates decreased proficiency
Time frame: through study completion
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Instrument Collisions
Automatically recorded data on the Mimic DV trainer which records number of collisions
Time frame: study duration
Time Spent Using Excessive Force
Automatically recorded data on the Mimic DV trainer (seconds)
Time frame: study duration
Workspace Range
Automatically recorded data on the Mimic DV trainer consisting of workspace range (cm, this is the widest range traveled by the 2 instruments, one in each hand), and number of peg drops
Time frame: study duration