Determination of subtalar joint axis location by restriction of talocrural joint motion

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The location of the subtalar joint axis is an important determinant of the mechanical function of the foot. The moments of muscle forces and of the ground reaction force about the subtalar joint are dependent upon the location of this joint axis. There is substantial variation in subtalar axis location across subjects, but current methods for determining its location are often invasive or involve expensive imaging protocols. A novel technique for location of the subtalar axis is presented in which the talocrural joint is passively immobilized so that motion of the tibia relative to the calcaneus can be used to estimate the subtalar axis. This paper presents results of cadaver testing in which accuracy of the technique was assessed by comparing helical axes computed from calcaneus-tibia bone motions to axes computed from calcaneus-talus bone motions. Only small motions at the talocrural joint were observed, and good estimates of the subtalar axis (errors less than 15° and 2 mm) were achieved in four of six specimens.

Original languageEnglish (US)
Pages (from-to)63-69
Number of pages7
JournalGait and Posture
Volume25
Issue number1
DOIs
StatePublished - Jan 1 2007

Fingerprint

Subtalar Joint
Calcaneus
Joints
Tibia
Bone and Bones
Talus
Cadaver
Foot
Muscles

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation

Cite this

@article{b2741bcf579241768c1015fac30896f1,
title = "Determination of subtalar joint axis location by restriction of talocrural joint motion",
abstract = "The location of the subtalar joint axis is an important determinant of the mechanical function of the foot. The moments of muscle forces and of the ground reaction force about the subtalar joint are dependent upon the location of this joint axis. There is substantial variation in subtalar axis location across subjects, but current methods for determining its location are often invasive or involve expensive imaging protocols. A novel technique for location of the subtalar axis is presented in which the talocrural joint is passively immobilized so that motion of the tibia relative to the calcaneus can be used to estimate the subtalar axis. This paper presents results of cadaver testing in which accuracy of the technique was assessed by comparing helical axes computed from calcaneus-tibia bone motions to axes computed from calcaneus-talus bone motions. Only small motions at the talocrural joint were observed, and good estimates of the subtalar axis (errors less than 15° and 2 mm) were achieved in four of six specimens.",
author = "Gregory Lewis and Kirby, {Kevin A.} and Piazza, {Stephen Jacob}",
year = "2007",
month = "1",
day = "1",
doi = "10.1016/j.gaitpost.2006.01.001",
language = "English (US)",
volume = "25",
pages = "63--69",
journal = "Gait and Posture",
issn = "0966-6362",
publisher = "Elsevier",
number = "1",

}

Determination of subtalar joint axis location by restriction of talocrural joint motion. / Lewis, Gregory; Kirby, Kevin A.; Piazza, Stephen Jacob.

In: Gait and Posture, Vol. 25, No. 1, 01.01.2007, p. 63-69.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Determination of subtalar joint axis location by restriction of talocrural joint motion

AU - Lewis, Gregory

AU - Kirby, Kevin A.

AU - Piazza, Stephen Jacob

PY - 2007/1/1

Y1 - 2007/1/1

N2 - The location of the subtalar joint axis is an important determinant of the mechanical function of the foot. The moments of muscle forces and of the ground reaction force about the subtalar joint are dependent upon the location of this joint axis. There is substantial variation in subtalar axis location across subjects, but current methods for determining its location are often invasive or involve expensive imaging protocols. A novel technique for location of the subtalar axis is presented in which the talocrural joint is passively immobilized so that motion of the tibia relative to the calcaneus can be used to estimate the subtalar axis. This paper presents results of cadaver testing in which accuracy of the technique was assessed by comparing helical axes computed from calcaneus-tibia bone motions to axes computed from calcaneus-talus bone motions. Only small motions at the talocrural joint were observed, and good estimates of the subtalar axis (errors less than 15° and 2 mm) were achieved in four of six specimens.

AB - The location of the subtalar joint axis is an important determinant of the mechanical function of the foot. The moments of muscle forces and of the ground reaction force about the subtalar joint are dependent upon the location of this joint axis. There is substantial variation in subtalar axis location across subjects, but current methods for determining its location are often invasive or involve expensive imaging protocols. A novel technique for location of the subtalar axis is presented in which the talocrural joint is passively immobilized so that motion of the tibia relative to the calcaneus can be used to estimate the subtalar axis. This paper presents results of cadaver testing in which accuracy of the technique was assessed by comparing helical axes computed from calcaneus-tibia bone motions to axes computed from calcaneus-talus bone motions. Only small motions at the talocrural joint were observed, and good estimates of the subtalar axis (errors less than 15° and 2 mm) were achieved in four of six specimens.

UR - http://www.scopus.com/inward/record.url?scp=33750971444&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33750971444&partnerID=8YFLogxK

U2 - 10.1016/j.gaitpost.2006.01.001

DO - 10.1016/j.gaitpost.2006.01.001

M3 - Article

C2 - 16472526

AN - SCOPUS:33750971444

VL - 25

SP - 63

EP - 69

JO - Gait and Posture

JF - Gait and Posture

SN - 0966-6362

IS - 1

ER -