Greater knee flexion excursion/moment in hopping is associated with better knee function following anterior cruciate ligament reconstruction

Luke G. Perraton, Ross A. Clark, Kay M. Crossley, Yong-Hao Pua, Hayden G. Morris, Tim S. Whitehead, Adam G. Culvenor, Adam L. Bryant

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Purpose: Individuals with impaired knee function after anterior cruciate ligament reconstruction (ACLR) may be at greater risk of developing knee osteoarthritis related to abnormal knee joint movement and loading. The aim of this study was to assess the association between knee biomechanics and knee laxity during hopping and clinically assessed knee function (i.e., patient-reported knee function and hop tests) following ACLR. Methods: Sixty-six participants (23 women, mean age 28 ± 6 years, mean 18 ± 3 months following ACLR) completed a standardized single-leg hopping task. Three-dimensional movement analysis was used to assess knee flexion excursion and body weight/height normalized knee flexion moments during landing for the involved limb. Anterior–posterior knee laxity was assessed with a KT-1000 knee arthrometer. Participants then completed a patient-reported knee function questionnaire and three separate hop tests (% of uninvolved limb) and were divided into poor and satisfactory knee function groups (satisfactory: ≥85% patient-reported knee function and ≥ 85% hop test symmetry). Associations between knee function and hop biomechanics/knee laxity were assessed using logistic regression and interquartile range scaled odds ratios (OR IQR ). Results: Greater knee flexion excursion (OR IQR 2.9, 95%CI 1.1–7.8), greater knee flexion moment (OR IQR 4.9, 95%CI 1.6–14.3) and lesser knee laxity (OR IQR 4.7, 95%CI 1.5–14.9) were significantly associated with greater odds of having satisfactory knee function (≥ 85% patient-reported knee function and ≥ 85% hop test symmetry). Conclusion: Greater knee flexion excursion/moment during hop-landing and lesser knee laxity is associated with better patient-reported knee function and single-leg hop test performance following ACLR. Patients with lower levels of knee function following ACLR demonstrated hop-landing biomechanics previously associated with early patellofemoral osteoarthritis. Therefore, interventions aimed at improving hop landing biomechanics in people with poor knee function are likely required. Level of evidence: III, Cross-sectional study.

Original languageEnglish
Pages (from-to)596-603
Number of pages8
JournalKnee Surgery, Sports Traumatology, Arthroscopy
Volume27
Issue number2
DOIs
Publication statusPublished - 14 Feb 2019

Keywords

  • ACL reconstruction
  • Biomechanics
  • Hopping
  • Knee function

Cite this

Perraton, Luke G. ; Clark, Ross A. ; Crossley, Kay M. ; Pua, Yong-Hao ; Morris, Hayden G. ; Whitehead, Tim S. ; Culvenor, Adam G. ; Bryant, Adam L. / Greater knee flexion excursion/moment in hopping is associated with better knee function following anterior cruciate ligament reconstruction. In: Knee Surgery, Sports Traumatology, Arthroscopy. 2019 ; Vol. 27, No. 2. pp. 596-603.
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title = "Greater knee flexion excursion/moment in hopping is associated with better knee function following anterior cruciate ligament reconstruction",
abstract = "Purpose: Individuals with impaired knee function after anterior cruciate ligament reconstruction (ACLR) may be at greater risk of developing knee osteoarthritis related to abnormal knee joint movement and loading. The aim of this study was to assess the association between knee biomechanics and knee laxity during hopping and clinically assessed knee function (i.e., patient-reported knee function and hop tests) following ACLR. Methods: Sixty-six participants (23 women, mean age 28 ± 6 years, mean 18 ± 3 months following ACLR) completed a standardized single-leg hopping task. Three-dimensional movement analysis was used to assess knee flexion excursion and body weight/height normalized knee flexion moments during landing for the involved limb. Anterior–posterior knee laxity was assessed with a KT-1000 knee arthrometer. Participants then completed a patient-reported knee function questionnaire and three separate hop tests ({\%} of uninvolved limb) and were divided into poor and satisfactory knee function groups (satisfactory: ≥85{\%} patient-reported knee function and ≥ 85{\%} hop test symmetry). Associations between knee function and hop biomechanics/knee laxity were assessed using logistic regression and interquartile range scaled odds ratios (OR IQR ). Results: Greater knee flexion excursion (OR IQR 2.9, 95{\%}CI 1.1–7.8), greater knee flexion moment (OR IQR 4.9, 95{\%}CI 1.6–14.3) and lesser knee laxity (OR IQR 4.7, 95{\%}CI 1.5–14.9) were significantly associated with greater odds of having satisfactory knee function (≥ 85{\%} patient-reported knee function and ≥ 85{\%} hop test symmetry). Conclusion: Greater knee flexion excursion/moment during hop-landing and lesser knee laxity is associated with better patient-reported knee function and single-leg hop test performance following ACLR. Patients with lower levels of knee function following ACLR demonstrated hop-landing biomechanics previously associated with early patellofemoral osteoarthritis. Therefore, interventions aimed at improving hop landing biomechanics in people with poor knee function are likely required. Level of evidence: III, Cross-sectional study.",
keywords = "ACL reconstruction, Biomechanics, Hopping, Knee function",
author = "Perraton, {Luke G.} and Clark, {Ross A.} and Crossley, {Kay M.} and Yong-Hao Pua and Morris, {Hayden G.} and Whitehead, {Tim S.} and Culvenor, {Adam G.} and Bryant, {Adam L.}",
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Greater knee flexion excursion/moment in hopping is associated with better knee function following anterior cruciate ligament reconstruction. / Perraton, Luke G.; Clark, Ross A.; Crossley, Kay M.; Pua, Yong-Hao; Morris, Hayden G.; Whitehead, Tim S.; Culvenor, Adam G.; Bryant, Adam L.

In: Knee Surgery, Sports Traumatology, Arthroscopy, Vol. 27, No. 2, 14.02.2019, p. 596-603.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Greater knee flexion excursion/moment in hopping is associated with better knee function following anterior cruciate ligament reconstruction

AU - Perraton, Luke G.

AU - Clark, Ross A.

AU - Crossley, Kay M.

AU - Pua, Yong-Hao

AU - Morris, Hayden G.

AU - Whitehead, Tim S.

AU - Culvenor, Adam G.

AU - Bryant, Adam L.

PY - 2019/2/14

Y1 - 2019/2/14

N2 - Purpose: Individuals with impaired knee function after anterior cruciate ligament reconstruction (ACLR) may be at greater risk of developing knee osteoarthritis related to abnormal knee joint movement and loading. The aim of this study was to assess the association between knee biomechanics and knee laxity during hopping and clinically assessed knee function (i.e., patient-reported knee function and hop tests) following ACLR. Methods: Sixty-six participants (23 women, mean age 28 ± 6 years, mean 18 ± 3 months following ACLR) completed a standardized single-leg hopping task. Three-dimensional movement analysis was used to assess knee flexion excursion and body weight/height normalized knee flexion moments during landing for the involved limb. Anterior–posterior knee laxity was assessed with a KT-1000 knee arthrometer. Participants then completed a patient-reported knee function questionnaire and three separate hop tests (% of uninvolved limb) and were divided into poor and satisfactory knee function groups (satisfactory: ≥85% patient-reported knee function and ≥ 85% hop test symmetry). Associations between knee function and hop biomechanics/knee laxity were assessed using logistic regression and interquartile range scaled odds ratios (OR IQR ). Results: Greater knee flexion excursion (OR IQR 2.9, 95%CI 1.1–7.8), greater knee flexion moment (OR IQR 4.9, 95%CI 1.6–14.3) and lesser knee laxity (OR IQR 4.7, 95%CI 1.5–14.9) were significantly associated with greater odds of having satisfactory knee function (≥ 85% patient-reported knee function and ≥ 85% hop test symmetry). Conclusion: Greater knee flexion excursion/moment during hop-landing and lesser knee laxity is associated with better patient-reported knee function and single-leg hop test performance following ACLR. Patients with lower levels of knee function following ACLR demonstrated hop-landing biomechanics previously associated with early patellofemoral osteoarthritis. Therefore, interventions aimed at improving hop landing biomechanics in people with poor knee function are likely required. Level of evidence: III, Cross-sectional study.

AB - Purpose: Individuals with impaired knee function after anterior cruciate ligament reconstruction (ACLR) may be at greater risk of developing knee osteoarthritis related to abnormal knee joint movement and loading. The aim of this study was to assess the association between knee biomechanics and knee laxity during hopping and clinically assessed knee function (i.e., patient-reported knee function and hop tests) following ACLR. Methods: Sixty-six participants (23 women, mean age 28 ± 6 years, mean 18 ± 3 months following ACLR) completed a standardized single-leg hopping task. Three-dimensional movement analysis was used to assess knee flexion excursion and body weight/height normalized knee flexion moments during landing for the involved limb. Anterior–posterior knee laxity was assessed with a KT-1000 knee arthrometer. Participants then completed a patient-reported knee function questionnaire and three separate hop tests (% of uninvolved limb) and were divided into poor and satisfactory knee function groups (satisfactory: ≥85% patient-reported knee function and ≥ 85% hop test symmetry). Associations between knee function and hop biomechanics/knee laxity were assessed using logistic regression and interquartile range scaled odds ratios (OR IQR ). Results: Greater knee flexion excursion (OR IQR 2.9, 95%CI 1.1–7.8), greater knee flexion moment (OR IQR 4.9, 95%CI 1.6–14.3) and lesser knee laxity (OR IQR 4.7, 95%CI 1.5–14.9) were significantly associated with greater odds of having satisfactory knee function (≥ 85% patient-reported knee function and ≥ 85% hop test symmetry). Conclusion: Greater knee flexion excursion/moment during hop-landing and lesser knee laxity is associated with better patient-reported knee function and single-leg hop test performance following ACLR. Patients with lower levels of knee function following ACLR demonstrated hop-landing biomechanics previously associated with early patellofemoral osteoarthritis. Therefore, interventions aimed at improving hop landing biomechanics in people with poor knee function are likely required. Level of evidence: III, Cross-sectional study.

KW - ACL reconstruction

KW - Biomechanics

KW - Hopping

KW - Knee function

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U2 - 10.1007/s00167-018-5197-7

DO - 10.1007/s00167-018-5197-7

M3 - Article

VL - 27

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EP - 603

JO - Knee Surgery, Sports Traumatology, Arthroscopy

JF - Knee Surgery, Sports Traumatology, Arthroscopy

SN - 0942-2056

IS - 2

ER -