2017 ISAKOS Biennial Congress ePoster #1076

 

Foot Posture and Ankle Flexibility Differences Between ACL Injured and Healthy Controls: a Systematic Review with Meta-Analysis

Mei Ganse, PT, PhD, Hiroshima, Hiroshima JAPAN
Noboru Shimada, MS, Hiroshima, Hiroshima JAPAN
Yukio Mikami, PhD, MD, Hiroshima JAPAN
Hiroaki Kimura, Hiroshima, Hiroshima JAPAN
Evangelos Pappas, PT, PhD, OCS, Lidcombe, NSW AUSTRALIA
Mitsuo Ochi, MD, PhD, Higashi, Hiroshima JAPAN

University of Sydney, Sydney, NSW, AUSTRALIA

FDA Status Not Applicable

Summary

No systematic review has currently summarized reported on foot posture/ankle flexibility differences between ACL injured patients and healthy controls. Our result identified evidence people with a history of ACL injury stand with a more pronated position than healthy controls.

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Abstract

Background

and purpose:
Anterior cruciate ligament (ACL) tear is a serious knee joint injury that occurs during sports. It is a multifactorial injury, resulting from the interplay of various risk factors. Several studies have suggested a link between foot posture, ankle flexibility and ACL injury. However, no systematic review has currently summarized reported on foot posture/ankle flexibility differences between ACL injured patients and healthy controls.

Methods

We searched electronic databases MEDLINE, EMBASE,CINAHL, and SPORTDiscus from inception to 9th May 2016, with keywords related to foot posture and ankle flexibility. Studies that reported on at least one outcome related to foot posture (navicular drop, calcaneal stance) or ankle dorsiflexion flexibility and included an ACL injured and a healthy control group were included.

Results

Eleven studies met the inclusion criteria (n=293 ACL groups, n=993 healthy groups). Using data from nine studies, the ACL injured group had higher navicular drop than the healthy control group. However, there was not enough data to perform a meta-analysis for calcaneal stance and ankle dorsiflexion flexibility.

Conclusion

This meta-analysis identified evidence people with a history of ACL injury stand with a more pronated position than healthy controls. A biomechanical link between a more pronated foot and higher internal tibial rotation may be a potential mechanistic explanation.