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Dynamic Single-Leg Postural Control is Impaired Bilaterally Following ACL Reconstruction : Implications for Reinjury Risk

Culvenor, Adam G; Alexander, Bryce C; Clark, Ross A; Collins, Natalie J; Ageberg, Eva LU ; Morris, Hayden G; Whitehead, Timothy S and Crossley, Kay M (2016) In Journal of Orthopaedic and Sports Physical Therapy 46(5). p.357-364
Abstract

Study Design Controlled laboratory study; cross-sectional. Background Postural control following anterior cruciate ligament reconstruction (ACLR) primarily has been investigated during static single-leg balance tasks. Little is known about dynamic postural control deficits post-ACLR. Objectives To compare dynamic postural control (bilaterally) in persons who have undergone ACLR and healthy controls, and to evaluate the relationship between dynamic postural control and self-reported and objective function. Methods 97 participants (66 males, median age 28 years) 12 months post-ACLR and 48 healthy controls (20 males, median age 30 years) underwent balance assessment using a Nintendo Wii Balance Board during a single-leg squat. Center of... (More)

Study Design Controlled laboratory study; cross-sectional. Background Postural control following anterior cruciate ligament reconstruction (ACLR) primarily has been investigated during static single-leg balance tasks. Little is known about dynamic postural control deficits post-ACLR. Objectives To compare dynamic postural control (bilaterally) in persons who have undergone ACLR and healthy controls, and to evaluate the relationship between dynamic postural control and self-reported and objective function. Methods 97 participants (66 males, median age 28 years) 12 months post-ACLR and 48 healthy controls (20 males, median age 30 years) underwent balance assessment using a Nintendo Wii Balance Board during a single-leg squat. Center of pressure (CoP) path velocity, as well as CoP amplitude and standard deviation (SD) in both mediolateral (ML) and anteroposterior (AP) directions, were recorded. Self-reported function was assessed with the International Knee Documentation Committee Subjective form (IKDC), while hop-for-distance was used to evaluate functional status. Results Compared to healthy controls, the ACLR group had greater mean CoP path velocity (16% higher, p=0.004), ML range (23%, p<0.001), ML SD (28%, p<0.001), AP range (14%, p=0.009) and AP SD (15%, p=0.013) indicating worse dynamic balance post-ACLR. Dynamic balance performance was similar between the ACLR limb and the uninjured contralateral limb. AP SD was weakly associated with hop performance (β -0.2, p=0.046); no balance measures were associated with the IKDC score. Conclusion Individuals who have undergone ACLR demonstrate impaired dynamic balance bilaterally when performing a single-leg squat which may have implications for physical function and future injury risk. Routine dynamic balance assessment may help identify patients who could benefit from targeted neuromuscular training programs to improve objective function and potentially lower re-injury risk. J Orthop Sports Phys Ther, Epub 21 Mar 2016. doi:10.2519/jospt.2016.6305.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Orthopaedic and Sports Physical Therapy
volume
46
issue
5
pages
28 pages
publisher
J O S P T, Alliance Group Communications
external identifiers
  • Scopus:84964953204
ISSN
0190-6011
DOI
10.2519/jospt.2016.6305
language
English
LU publication?
yes
id
97128d4f-f611-43ed-83d9-926a1642f2f9
date added to LUP
2016-04-15 11:55:30
date last changed
2016-10-27 09:21:51
@misc{97128d4f-f611-43ed-83d9-926a1642f2f9,
  abstract     = {<p>Study Design Controlled laboratory study; cross-sectional. Background Postural control following anterior cruciate ligament reconstruction (ACLR) primarily has been investigated during static single-leg balance tasks. Little is known about dynamic postural control deficits post-ACLR. Objectives To compare dynamic postural control (bilaterally) in persons who have undergone ACLR and healthy controls, and to evaluate the relationship between dynamic postural control and self-reported and objective function. Methods 97 participants (66 males, median age 28 years) 12 months post-ACLR and 48 healthy controls (20 males, median age 30 years) underwent balance assessment using a Nintendo Wii Balance Board during a single-leg squat. Center of pressure (CoP) path velocity, as well as CoP amplitude and standard deviation (SD) in both mediolateral (ML) and anteroposterior (AP) directions, were recorded. Self-reported function was assessed with the International Knee Documentation Committee Subjective form (IKDC), while hop-for-distance was used to evaluate functional status. Results Compared to healthy controls, the ACLR group had greater mean CoP path velocity (16% higher, p=0.004), ML range (23%, p&lt;0.001), ML SD (28%, p&lt;0.001), AP range (14%, p=0.009) and AP SD (15%, p=0.013) indicating worse dynamic balance post-ACLR. Dynamic balance performance was similar between the ACLR limb and the uninjured contralateral limb. AP SD was weakly associated with hop performance (β -0.2, p=0.046); no balance measures were associated with the IKDC score. Conclusion Individuals who have undergone ACLR demonstrate impaired dynamic balance bilaterally when performing a single-leg squat which may have implications for physical function and future injury risk. Routine dynamic balance assessment may help identify patients who could benefit from targeted neuromuscular training programs to improve objective function and potentially lower re-injury risk. J Orthop Sports Phys Ther, Epub 21 Mar 2016. doi:10.2519/jospt.2016.6305.</p>},
  author       = {Culvenor, Adam G and Alexander, Bryce C and Clark, Ross A and Collins, Natalie J and Ageberg, Eva and Morris, Hayden G and Whitehead, Timothy S and Crossley, Kay M},
  issn         = {0190-6011},
  language     = {eng},
  month        = {03},
  number       = {5},
  pages        = {357--364},
  publisher    = {ARRAY(0xc70bb80)},
  series       = {Journal of Orthopaedic and Sports Physical Therapy},
  title        = {Dynamic Single-Leg Postural Control is Impaired Bilaterally Following ACL Reconstruction : Implications for Reinjury Risk},
  url          = {http://dx.doi.org/10.2519/jospt.2016.6305},
  volume       = {46},
  year         = {2016},
}