Talo-calcaneal relationship in clubfoot

Benjamin Joseph, Maneesh Bhatia, N. Sreekumaran Nair

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Talo-calcaneal angles were measured on anteroposterior, stress dorsiflexion, and plantarflexion lateral radiographs of 75 normal feet and 145 clubfeet. The talus and calcaneum from 15 normal fetal limbs were dissected without disturbing the subtalar capsule. Anteroposterior and lateral radiographs of these specimens were also obtained. The long axes of the ossific nuclei and the long axes of the cartilaginous anlagen of the bones were marked, and the talo-calcaneal angles were measured. The talo-calcaneal angles were lower in clubfeet than in normal feet, but there was considerable overlap in the ranges of normal and clubfeet for all the angles measured. The lateral talo-calcaneal angles in normal feet were higher in dorsiflexion than in plantarflexion, whereas the converse was true in clubfeet. The talo-calcaneal angles measured from the axes of the ossific nuclei of the fetal specimens were higher than those measured from the axes of the cartilaginous anlagen. Using logistic regression analysis, a mathematical model was made to predict the probability of correction of clubfeet. A lateral talo-calcaneal angle difference (between the stress dorsiflexion and plantarflexion angles) of 20 degrees suggests that there is a 93% probability that the hindfoot deformity of clubfoot has been adequately corrected. A talo-calcaneal angle of 30 degrees or a talo-calcaneal index of 40 degrees does not ensure correction of clubfoot. A decrease of the talo-calcaneal angle by up to 10 degrees occurs as the child grows because of the alteration of the shape of the ossific nucleus of the talus that occurs normally with growth.

Original languageEnglish
Pages (from-to)60-64
Number of pages5
JournalJournal of Pediatric Orthopaedics
Volume21
Issue number1
DOIs
Publication statusPublished - 20-01-2001
Externally publishedYes

Fingerprint

Clubfoot
Foot
Talus
Capsules
Reference Values
Theoretical Models
Extremities
Logistic Models
Regression Analysis
Bone and Bones
Growth

All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health
  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Joseph, Benjamin ; Bhatia, Maneesh ; Nair, N. Sreekumaran. / Talo-calcaneal relationship in clubfoot. In: Journal of Pediatric Orthopaedics. 2001 ; Vol. 21, No. 1. pp. 60-64.
@article{72703194cb4f4afe9c5e43e9f53a253f,
title = "Talo-calcaneal relationship in clubfoot",
abstract = "Talo-calcaneal angles were measured on anteroposterior, stress dorsiflexion, and plantarflexion lateral radiographs of 75 normal feet and 145 clubfeet. The talus and calcaneum from 15 normal fetal limbs were dissected without disturbing the subtalar capsule. Anteroposterior and lateral radiographs of these specimens were also obtained. The long axes of the ossific nuclei and the long axes of the cartilaginous anlagen of the bones were marked, and the talo-calcaneal angles were measured. The talo-calcaneal angles were lower in clubfeet than in normal feet, but there was considerable overlap in the ranges of normal and clubfeet for all the angles measured. The lateral talo-calcaneal angles in normal feet were higher in dorsiflexion than in plantarflexion, whereas the converse was true in clubfeet. The talo-calcaneal angles measured from the axes of the ossific nuclei of the fetal specimens were higher than those measured from the axes of the cartilaginous anlagen. Using logistic regression analysis, a mathematical model was made to predict the probability of correction of clubfeet. A lateral talo-calcaneal angle difference (between the stress dorsiflexion and plantarflexion angles) of 20 degrees suggests that there is a 93{\%} probability that the hindfoot deformity of clubfoot has been adequately corrected. A talo-calcaneal angle of 30 degrees or a talo-calcaneal index of 40 degrees does not ensure correction of clubfoot. A decrease of the talo-calcaneal angle by up to 10 degrees occurs as the child grows because of the alteration of the shape of the ossific nucleus of the talus that occurs normally with growth.",
author = "Benjamin Joseph and Maneesh Bhatia and Nair, {N. Sreekumaran}",
year = "2001",
month = "1",
day = "20",
doi = "10.1097/00004694-200101000-00013",
language = "English",
volume = "21",
pages = "60--64",
journal = "Journal of Pediatric Orthopaedics",
issn = "0271-6798",
publisher = "Lippincott Williams and Wilkins",
number = "1",

}

Talo-calcaneal relationship in clubfoot. / Joseph, Benjamin; Bhatia, Maneesh; Nair, N. Sreekumaran.

In: Journal of Pediatric Orthopaedics, Vol. 21, No. 1, 20.01.2001, p. 60-64.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Talo-calcaneal relationship in clubfoot

AU - Joseph, Benjamin

AU - Bhatia, Maneesh

AU - Nair, N. Sreekumaran

PY - 2001/1/20

Y1 - 2001/1/20

N2 - Talo-calcaneal angles were measured on anteroposterior, stress dorsiflexion, and plantarflexion lateral radiographs of 75 normal feet and 145 clubfeet. The talus and calcaneum from 15 normal fetal limbs were dissected without disturbing the subtalar capsule. Anteroposterior and lateral radiographs of these specimens were also obtained. The long axes of the ossific nuclei and the long axes of the cartilaginous anlagen of the bones were marked, and the talo-calcaneal angles were measured. The talo-calcaneal angles were lower in clubfeet than in normal feet, but there was considerable overlap in the ranges of normal and clubfeet for all the angles measured. The lateral talo-calcaneal angles in normal feet were higher in dorsiflexion than in plantarflexion, whereas the converse was true in clubfeet. The talo-calcaneal angles measured from the axes of the ossific nuclei of the fetal specimens were higher than those measured from the axes of the cartilaginous anlagen. Using logistic regression analysis, a mathematical model was made to predict the probability of correction of clubfeet. A lateral talo-calcaneal angle difference (between the stress dorsiflexion and plantarflexion angles) of 20 degrees suggests that there is a 93% probability that the hindfoot deformity of clubfoot has been adequately corrected. A talo-calcaneal angle of 30 degrees or a talo-calcaneal index of 40 degrees does not ensure correction of clubfoot. A decrease of the talo-calcaneal angle by up to 10 degrees occurs as the child grows because of the alteration of the shape of the ossific nucleus of the talus that occurs normally with growth.

AB - Talo-calcaneal angles were measured on anteroposterior, stress dorsiflexion, and plantarflexion lateral radiographs of 75 normal feet and 145 clubfeet. The talus and calcaneum from 15 normal fetal limbs were dissected without disturbing the subtalar capsule. Anteroposterior and lateral radiographs of these specimens were also obtained. The long axes of the ossific nuclei and the long axes of the cartilaginous anlagen of the bones were marked, and the talo-calcaneal angles were measured. The talo-calcaneal angles were lower in clubfeet than in normal feet, but there was considerable overlap in the ranges of normal and clubfeet for all the angles measured. The lateral talo-calcaneal angles in normal feet were higher in dorsiflexion than in plantarflexion, whereas the converse was true in clubfeet. The talo-calcaneal angles measured from the axes of the ossific nuclei of the fetal specimens were higher than those measured from the axes of the cartilaginous anlagen. Using logistic regression analysis, a mathematical model was made to predict the probability of correction of clubfeet. A lateral talo-calcaneal angle difference (between the stress dorsiflexion and plantarflexion angles) of 20 degrees suggests that there is a 93% probability that the hindfoot deformity of clubfoot has been adequately corrected. A talo-calcaneal angle of 30 degrees or a talo-calcaneal index of 40 degrees does not ensure correction of clubfoot. A decrease of the talo-calcaneal angle by up to 10 degrees occurs as the child grows because of the alteration of the shape of the ossific nucleus of the talus that occurs normally with growth.

UR - http://www.scopus.com/inward/record.url?scp=0035149660&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035149660&partnerID=8YFLogxK

U2 - 10.1097/00004694-200101000-00013

DO - 10.1097/00004694-200101000-00013

M3 - Article

C2 - 11176355

AN - SCOPUS:0035149660

VL - 21

SP - 60

EP - 64

JO - Journal of Pediatric Orthopaedics

JF - Journal of Pediatric Orthopaedics

SN - 0271-6798

IS - 1

ER -