Quadriceps Strength following Anterior Cruciate Ligament Reconstruction: Normative Values based on Sex, Graft Type and Meniscal Status at 3, 6 & 9 Months

# Background Higher postoperative quadriceps function has been positively associated with surgical outcomes after anterior cruciate ligament reconstruction (ACLR). However, the impact of autograft harvest and/or a concomitant meniscal procedure on the recovery of quadriceps strength is not well def...

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Main Authors: Nicole A. Schwery, Michael T. Kiely, Christopher M. Larson, Corey A. Wulf, Christie S. Heikes, Ryan W. Hess, M. Russell Giveans, Braidy S. Solie, Chrisopher P. Doney
Format: Article
Language:English
Published: North American Sports Medicine Institute 2022-04-01
Series:International Journal of Sports Physical Therapy
Online Access:https://doi.org/10.26603/001c.32378
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author Nicole A. Schwery
Michael T. Kiely
Christopher M. Larson
Corey A. Wulf
Christie S. Heikes
Ryan W. Hess
M. Russell Giveans
Braidy S. Solie
Chrisopher P. Doney
author_facet Nicole A. Schwery
Michael T. Kiely
Christopher M. Larson
Corey A. Wulf
Christie S. Heikes
Ryan W. Hess
M. Russell Giveans
Braidy S. Solie
Chrisopher P. Doney
author_sort Nicole A. Schwery
collection DOAJ
description # Background Higher postoperative quadriceps function has been positively associated with surgical outcomes after anterior cruciate ligament reconstruction (ACLR). However, the impact of autograft harvest and/or a concomitant meniscal procedure on the recovery of quadriceps strength is not well defined. # Purpose To describe postoperative recovery of quadriceps strength following ACLR related to autograft selection, meniscal status, and sex. # Study Design Retrospective Cohort. # Methods One hundred and twenty-five participants who underwent ACLR with either a hamstring tendon (HT), bone-patellar tendon-bone (BPTB) or quadriceps tendon (QT) autograft were included. At postoperative months 3, 6 and 9, each participant completed an isometric quadriceps strength testing protocol at 90-degrees of knee flexion. Participants’ quadriceps average peak torque (Q-AvgPKT), average peak torque relative to body weight (Q-RPKT), and calculated limb symmetry index (Q-LSI) were collected and used for data analysis. Patients were placed in groups based on sex, graft type, and whether they had a concomitant meniscal procedure at the time of ACLR. At each time point, One-way ANOVAs, independent samples t-test and chi-square analyses were used to test for any between-group differences in strength outcomes. # Results At three months after ACLR, Q-RPKT was significantly higher in those with the HT compared to the QT. At all time points, males had significantly greater Q-RPKT than females and HT Q-LSI was significantly higher than BPTB and QT. A concomitant meniscal procedure at the time of ACLR did not significantly affect Q-LSI or Q-RPKT at any testing point. # Conclusion This study provides outcomes that are procedure specific as well as highlights the objective progression of quadriceps strength after ACLR. This information may help better-define the normal recovery of function, as well as guide rehabilitation strategies after ACLR. # Level of Evidence 3
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publisher North American Sports Medicine Institute
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series International Journal of Sports Physical Therapy
spelling doaj-art-1ed9c439932748b182069e76ac0cba882025-02-11T20:27:40ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962022-04-01173Quadriceps Strength following Anterior Cruciate Ligament Reconstruction: Normative Values based on Sex, Graft Type and Meniscal Status at 3, 6 & 9 MonthsNicole A. SchweryMichael T. KielyChristopher M. LarsonCorey A. WulfChristie S. HeikesRyan W. HessM. Russell GiveansBraidy S. SolieChrisopher P. Doney# Background Higher postoperative quadriceps function has been positively associated with surgical outcomes after anterior cruciate ligament reconstruction (ACLR). However, the impact of autograft harvest and/or a concomitant meniscal procedure on the recovery of quadriceps strength is not well defined. # Purpose To describe postoperative recovery of quadriceps strength following ACLR related to autograft selection, meniscal status, and sex. # Study Design Retrospective Cohort. # Methods One hundred and twenty-five participants who underwent ACLR with either a hamstring tendon (HT), bone-patellar tendon-bone (BPTB) or quadriceps tendon (QT) autograft were included. At postoperative months 3, 6 and 9, each participant completed an isometric quadriceps strength testing protocol at 90-degrees of knee flexion. Participants’ quadriceps average peak torque (Q-AvgPKT), average peak torque relative to body weight (Q-RPKT), and calculated limb symmetry index (Q-LSI) were collected and used for data analysis. Patients were placed in groups based on sex, graft type, and whether they had a concomitant meniscal procedure at the time of ACLR. At each time point, One-way ANOVAs, independent samples t-test and chi-square analyses were used to test for any between-group differences in strength outcomes. # Results At three months after ACLR, Q-RPKT was significantly higher in those with the HT compared to the QT. At all time points, males had significantly greater Q-RPKT than females and HT Q-LSI was significantly higher than BPTB and QT. A concomitant meniscal procedure at the time of ACLR did not significantly affect Q-LSI or Q-RPKT at any testing point. # Conclusion This study provides outcomes that are procedure specific as well as highlights the objective progression of quadriceps strength after ACLR. This information may help better-define the normal recovery of function, as well as guide rehabilitation strategies after ACLR. # Level of Evidence 3https://doi.org/10.26603/001c.32378
spellingShingle Nicole A. Schwery
Michael T. Kiely
Christopher M. Larson
Corey A. Wulf
Christie S. Heikes
Ryan W. Hess
M. Russell Giveans
Braidy S. Solie
Chrisopher P. Doney
Quadriceps Strength following Anterior Cruciate Ligament Reconstruction: Normative Values based on Sex, Graft Type and Meniscal Status at 3, 6 & 9 Months
International Journal of Sports Physical Therapy
title Quadriceps Strength following Anterior Cruciate Ligament Reconstruction: Normative Values based on Sex, Graft Type and Meniscal Status at 3, 6 & 9 Months
title_full Quadriceps Strength following Anterior Cruciate Ligament Reconstruction: Normative Values based on Sex, Graft Type and Meniscal Status at 3, 6 & 9 Months
title_fullStr Quadriceps Strength following Anterior Cruciate Ligament Reconstruction: Normative Values based on Sex, Graft Type and Meniscal Status at 3, 6 & 9 Months
title_full_unstemmed Quadriceps Strength following Anterior Cruciate Ligament Reconstruction: Normative Values based on Sex, Graft Type and Meniscal Status at 3, 6 & 9 Months
title_short Quadriceps Strength following Anterior Cruciate Ligament Reconstruction: Normative Values based on Sex, Graft Type and Meniscal Status at 3, 6 & 9 Months
title_sort quadriceps strength following anterior cruciate ligament reconstruction normative values based on sex graft type and meniscal status at 3 6 9 months
url https://doi.org/10.26603/001c.32378
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