The effect of trochlear design on patellofemoral shear and compressive forces in total knee arthroplasty

W. J. Petersilge, C. S. Oishi, Kenton R Kaufman, S. E. Irby, C. W. Colwell

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

Biomechanical testing was performed on 5 candaveric knees to evaluate the effect of patellofemoral design on shear and compressive force at the patellar component-bone interface. Three patellofemoral designs with identical tibiofemoral articular surfaces were tested. The knees were tested under dynamic loading conditions from 0° to 100° flexion. A transducer that measured 3 orthogonal force components was mounted between the patellar component and the patella. The combination of an oval dome patella with a 2- mm deeper trochlear groove and associated increased femoral resection was compared with a biconcave patella with standard trochlea and normal femoral resection. Alignment of the trochlear groove in 7° valgus (anatomic) decreased medial-lateral shear by 10% to symmetric trochlear groove alignment.

Original languageEnglish (US)
Pages (from-to)124-130
Number of pages7
JournalClinical Orthopaedics and Related Research
Issue number309
StatePublished - 1994
Externally publishedYes

Fingerprint

Knee Replacement Arthroplasties
Patella
Thigh
Knee
Transducers
Joints
Bone and Bones

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

The effect of trochlear design on patellofemoral shear and compressive forces in total knee arthroplasty. / Petersilge, W. J.; Oishi, C. S.; Kaufman, Kenton R; Irby, S. E.; Colwell, C. W.

In: Clinical Orthopaedics and Related Research, No. 309, 1994, p. 124-130.

Research output: Contribution to journalArticle

@article{a737ffe0e8234d7dba2195d7320f7ea1,
title = "The effect of trochlear design on patellofemoral shear and compressive forces in total knee arthroplasty",
abstract = "Biomechanical testing was performed on 5 candaveric knees to evaluate the effect of patellofemoral design on shear and compressive force at the patellar component-bone interface. Three patellofemoral designs with identical tibiofemoral articular surfaces were tested. The knees were tested under dynamic loading conditions from 0° to 100° flexion. A transducer that measured 3 orthogonal force components was mounted between the patellar component and the patella. The combination of an oval dome patella with a 2- mm deeper trochlear groove and associated increased femoral resection was compared with a biconcave patella with standard trochlea and normal femoral resection. Alignment of the trochlear groove in 7° valgus (anatomic) decreased medial-lateral shear by 10{\%} to symmetric trochlear groove alignment.",
author = "Petersilge, {W. J.} and Oishi, {C. S.} and Kaufman, {Kenton R} and Irby, {S. E.} and Colwell, {C. W.}",
year = "1994",
language = "English (US)",
pages = "124--130",
journal = "Clinical Orthopaedics and Related Research",
issn = "0009-921X",
publisher = "Springer New York",
number = "309",

}

TY - JOUR

T1 - The effect of trochlear design on patellofemoral shear and compressive forces in total knee arthroplasty

AU - Petersilge, W. J.

AU - Oishi, C. S.

AU - Kaufman, Kenton R

AU - Irby, S. E.

AU - Colwell, C. W.

PY - 1994

Y1 - 1994

N2 - Biomechanical testing was performed on 5 candaveric knees to evaluate the effect of patellofemoral design on shear and compressive force at the patellar component-bone interface. Three patellofemoral designs with identical tibiofemoral articular surfaces were tested. The knees were tested under dynamic loading conditions from 0° to 100° flexion. A transducer that measured 3 orthogonal force components was mounted between the patellar component and the patella. The combination of an oval dome patella with a 2- mm deeper trochlear groove and associated increased femoral resection was compared with a biconcave patella with standard trochlea and normal femoral resection. Alignment of the trochlear groove in 7° valgus (anatomic) decreased medial-lateral shear by 10% to symmetric trochlear groove alignment.

AB - Biomechanical testing was performed on 5 candaveric knees to evaluate the effect of patellofemoral design on shear and compressive force at the patellar component-bone interface. Three patellofemoral designs with identical tibiofemoral articular surfaces were tested. The knees were tested under dynamic loading conditions from 0° to 100° flexion. A transducer that measured 3 orthogonal force components was mounted between the patellar component and the patella. The combination of an oval dome patella with a 2- mm deeper trochlear groove and associated increased femoral resection was compared with a biconcave patella with standard trochlea and normal femoral resection. Alignment of the trochlear groove in 7° valgus (anatomic) decreased medial-lateral shear by 10% to symmetric trochlear groove alignment.

UR - http://www.scopus.com/inward/record.url?scp=0028559797&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028559797&partnerID=8YFLogxK

M3 - Article

C2 - 7994950

AN - SCOPUS:0028559797

SP - 124

EP - 130

JO - Clinical Orthopaedics and Related Research

JF - Clinical Orthopaedics and Related Research

SN - 0009-921X

IS - 309

ER -