Efficacy of Different Types of Foot Orthoses on Postural Control in Subjects With Lateral Ankle Sprain: A Systematic Review

Background and Objectives: Lateral ankle sprain is one of the most common injuries to the musculoskeletal system, especially among active people. This injury causes complex complications, such as recurrent sprain because of reduced postural control. Foot orthoses are among the interventions used to improve postural control in this population. This review aims to investigate foot orthoses to improve postural control among patients with an acute or chronic lateral ankle sprain.  Methods: Four electronic databases (Scopus, PubMed, ISI Web of knowledge, and Google scholar) were searched for experimental studies. Articles were selected using the preferred reporting items for systematic reviews and meta-analyses (PRISMA) method. The articles were reviewed for their quality based on the standards for reporting diagnostic accuracy statements and then entered into this review. Results: The search results in all databases provided a total of 48 articles. After reviewing the documents, we excluded 38 articles that did not pass the inclusion criteria, resulting in 10 remaining articles. Data extraction from population, interventions, and outcome measures was done for these 10 articles. Conclusion: Foot orthoses are effective in improving the postural control of individuals with an acute or chronic lateral ankle sprain. Considering the existence of mechanical and functional instability, foot orthosis which is made to affect the proprioception and follow the biomechanics of the body seems to be the most effective in this field; however, more studies are required to confirm this.