Introduction: The primary aim of this randomized controlled trial was to assess if a head-mounted display (HMD) providing telemedicine support improves performance of a two-incision lower leg fasciotomy by a NATO special operations combat medic (combat medic).
Materials and methods: Thirty-six combat medics were randomized into two groups: One group performed a two-incision lower leg fasciotomy with the assistance of an HMD, while the control group completed the procedure without guidance. A Mann-Whitney U test was used to determine the possible differences in release of compartments and performance scores, as assessed by a supervising medical specialist. A Fisher's exact test was used to compare the proportions of collateral damage between groups. An independent-samples t-test was used to interpret total procedure times. The usability and technical factors involving HMD utilization were also assessed.
Results: Combat medics in the HMD group released the anterior compartment (P ≤ .001) and deep posterior compartment (P = .008) significantly better. There was significantly more iatrogenic muscle (P ≤ .001) and venous damage (P ≤ .001) in the control group. The overall performance of combat medics in the HMD group was significantly better than that of the control group (P < .001). Combat medics in the control group were significantly faster (P = .012). The combat medics were very satisfied with the HMD. The HMD showed no major technical errors.
Conclusions: This randomized controlled trial shows that a HMD providing telemedicine support leads to significantly better performance of a two-incision lower leg fasciotomy by a combat medic with less iatrogenic muscle and venous damage.
© The Association of Military Surgeons of the United States 2023.