Nerve traction during correction of knee flexion deformity. A case report and calculation

R. M. Aspden, R. W. Porter*

*Corresponding author for this work

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We report the case of a child with cerebral palsy and spastic diplegia treated for bilateral fixed flexion of the knee by bilateral hamstring lengthening. An attempt to straighten the legs from 90° to 20° flexion damaged the sciatic nerve. There are no objective means of estimating how much deformity can be reduced safely. We present a method of calculating the extra strain in the sciatic nerve produced by reducing a flexion deformity. The result, combined with clinical judgement, provides guidelines for safe corrective surgery.

Original languageEnglish
Pages (from-to)471-473
Number of pages3
JournalJournal of Bone & Joint Surgery - British Volume
Volume76
Issue number3
Publication statusPublished - 1994

Fingerprint

Traction
Sciatic Nerve
Knee
Leg
Guidelines
Cerebral palsy, spastic, diplegic

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

Nerve traction during correction of knee flexion deformity. A case report and calculation. / Aspden, R. M.; Porter, R. W.

In: Journal of Bone & Joint Surgery - British Volume, Vol. 76, No. 3, 1994, p. 471-473.

Research output: Contribution to journalArticle

@article{c37d9e04f2ca4736844ec087a8cbece1,
title = "Nerve traction during correction of knee flexion deformity. A case report and calculation",
abstract = "We report the case of a child with cerebral palsy and spastic diplegia treated for bilateral fixed flexion of the knee by bilateral hamstring lengthening. An attempt to straighten the legs from 90° to 20° flexion damaged the sciatic nerve. There are no objective means of estimating how much deformity can be reduced safely. We present a method of calculating the extra strain in the sciatic nerve produced by reducing a flexion deformity. The result, combined with clinical judgement, provides guidelines for safe corrective surgery.",
author = "Aspden, {R. M.} and Porter, {R. W.}",
year = "1994",
language = "English",
volume = "76",
pages = "471--473",
journal = "Journal of Bone & Joint Surgery - British Volume",
issn = "0301-620X",
publisher = "British Editorial Society of Bone and Joint Surgery",
number = "3",

}

TY - JOUR

T1 - Nerve traction during correction of knee flexion deformity. A case report and calculation

AU - Aspden, R. M.

AU - Porter, R. W.

PY - 1994

Y1 - 1994

N2 - We report the case of a child with cerebral palsy and spastic diplegia treated for bilateral fixed flexion of the knee by bilateral hamstring lengthening. An attempt to straighten the legs from 90° to 20° flexion damaged the sciatic nerve. There are no objective means of estimating how much deformity can be reduced safely. We present a method of calculating the extra strain in the sciatic nerve produced by reducing a flexion deformity. The result, combined with clinical judgement, provides guidelines for safe corrective surgery.

AB - We report the case of a child with cerebral palsy and spastic diplegia treated for bilateral fixed flexion of the knee by bilateral hamstring lengthening. An attempt to straighten the legs from 90° to 20° flexion damaged the sciatic nerve. There are no objective means of estimating how much deformity can be reduced safely. We present a method of calculating the extra strain in the sciatic nerve produced by reducing a flexion deformity. The result, combined with clinical judgement, provides guidelines for safe corrective surgery.

UR - http://www.scopus.com/inward/record.url?scp=0028300017&partnerID=8YFLogxK

M3 - Article

VL - 76

SP - 471

EP - 473

JO - Journal of Bone & Joint Surgery - British Volume

JF - Journal of Bone & Joint Surgery - British Volume

SN - 0301-620X

IS - 3

ER -