Comparing the effects of curvilinear position and micromovement on prevention of intraoperative acquired pressure injuries among patients undergoing surgery in the supine position: A randomized controlled trial

Abstract

Background

Patients undergoing surgery are at significant risk of developing pressure injuries due to immobility and fixed positioning on the operating table, particularly during lengthy procedures. Therefore, implementing effective prevention strategies for pressure injuries should begin as early as the surgical phase. This study aims to compare the two methods of curvilinear position and micromovement in preventing pressure injuries among patients undergoing general surgery in the supine position.

Method

This was a double-blind, prospective, randomized, controlled trial conducted from October 2024 to January 2025. The study included a sample size of 120 patients randomly divided into three groups: control (n = 40), micromovement (n = 40), and curvilinear (n = 40). Skin assessments were conducted using the National Pressure Ulcer Scale immediately after surgery and again one day later.

Results

A total of 114 patients were included in the analysis: 39 in the control group, 38 in the micromovement group, and 37 in the curvilinear group. A significant difference was found between the three groups regarding the incidence of pressure injuries (p < 0.05). However, there was no considerable difference regarding the location and stage of the pressure injury between groups (p > 0.05).

Conclusion

Micromovement and curvilinear supine position can significantly reduce the incidence of intraoperative acquired pressure injuries. Therefore, it is recommended that these methods be utilized as an effective intervention by the surgical team, especially for high-risk patients and those undergoing prolonged surgeries.