Relationship between Joint and Ligament Structures of the Subtalar Joint and Degeneration of the Subtalar Articular Facet

Ryoya Togashi; Mutsuaki Edama; Mayuu Shagawa; Haruki Osanami; Hirotake Yokota; Ryo Hirabayashi; Chie Sekine; Tomonobu Ishigaki; Hiroshi Akuzawa; Yuki Yamada; Taku Toriumi; Ikuo Kageyama

doi:10.3390/ijerph20043075

Relationship between Joint and Ligament Structures of the Subtalar Joint and Degeneration of the Subtalar Articular Facet

Int J Environ Res Public Health. 2023 Feb 9;20(4):3075. doi: 10.3390/ijerph20043075.

Authors

Affiliations

¹ Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan.
² Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata 951-1500, Japan.

Abstract

This study aimed to clarify the relationship between the joint and ligament structures of the subtalar joint and degeneration of the subtalar articular facet. We examined 50 feet from 25 Japanese cadavers. The number of articular facets, joint congruence, and intersecting angles were measured for the joint structure of the subtalar joint, and the footprint areas of the ligament attachments of the cervical ligament, interosseous talocalcaneal ligament (ITCL), and anterior capsular ligament were measured for the ligament structure. Additionally, subtalar joint facets were classified into Degeneration (+) and (-) groups according to degeneration of the talus and calcaneus. No significant relationship was identified between the joint structure of the subtalar joint and degeneration of the subtalar articular facet. In contrast, footprint area of the ITCL was significantly higher in the Degeneration (+) group than in the Degeneration (-) group for the subtalar joint facet. These results suggest that the joint structure of the subtalar joint may not affect degeneration of the subtalar articular facet. Degeneration of the subtalar articular facet may be related to the size of the ITCL.

Keywords: chronic ankle instability; footprint; osteoarthritis; subtalar joint instability.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Ankle Joint
Humans
Joint Instability*
Ligaments, Articular
Subtalar Joint*

Substances

5-(benzoylamino)-N-(4-chlorophenyl)-3-methyl-4-isothiazolecarboxamide

Grants and funding

This study was supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Number JP22K19739 and a Grant-in-Aid program from Niigata University of Health and Welfare.