Knee kinetics during walking continue to change at eight years after ACL reconstruction

Erhart‐Hledik, Jennifer C.; Chu, C.R.; Asay, Jessica L.; Andriacchi, Thomas P.

doi:10.1016/j.joca.2017.02.050

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, the increase in anterior TT and internal TR of the contralateral knee from baseline to 2‐year suggests that the uninjured knee has also undergone significant biomechanical changes. These findings are consistent with Erhart‐hledik et al 31 who demonstrated similar changes in gait and joint kinetics in reconstructed and contralateral limbs following ACLR. Hofbauer et al 32 also demonstrated adaptions to tibiofemoral position in the contralateral knee that mirrored the injured knee and reduced asymmetry between the two knees as early as 1‐year after surgery.…”

Section: Discussionsupporting

confidence: 91%

Altered tibiofemoral position following ACL reconstruction is associated with cartilage matrix changes: A voxel‐based relaxometry analysis

Ochoa

Pedoia

et al. 2020

Journal Orthopaedic Research

View full text Add to dashboard Cite

The purpose of this study was to analyze the relationship between postsurgical tibial translation (TT) and tibial rotation (TR) with cartilage matrix changes using quantitative magnetic resonance imaging, specifically voxel-based relaxometry with T1ρ and T2 mapping sequences. Knee magnetic resonance imaging's (MRI's) of 51 patients with unilateral anterior cruciate ligament injury, no concomitant ligamentous injury, history of osteoarthritis (OA), and previous knee surgery were scanned prior to surgery. Thirty-four patients completed follow-up MRI scans at 6-month, 1-and 2-year postreconstruction and were included in this study. Knee biomechanics, T1ρ, and T2 were calculated using an in-house Matlab program. Compared to the contralateral knee, the injured knee demonstrated significantly increased anterior TT at baseline (P < .001), 6-month (P < .001), 1-(P = .001), and 2-year (P < .001). Furthermore, patients were divided into groups based on TT at 6-month. When compared to patients with normal TT, those with increased anterior TT at 6-month displayed significantly longer T1ρ and T2 relaxation times in 10.4% and 7.4% of the voxels in the injured medial tibia at 1-year, respectively, as well as 12.4% and 9.8% of the voxels in the injured medial tibia at 2-year, respectively. Our results demonstrate an association between abnormal tibiofemoral position and early degradative changes to the articular cartilage matrix of the injured knee. Clinical significance: These findings suggest that altered tibiofemoral position following ACL reconstruction is associated with early degeneration of knee cartilage. Future prospective studies employing longer follow-up times are warranted to evaluate the relationship between abnormal tibiofemoral position and the early onset of posttraumatic OA.

show abstract

Section: Discussionsupporting

confidence: 91%

Altered tibiofemoral position following ACL reconstruction is associated with cartilage matrix changes: A voxel‐based relaxometry analysis

Ochoa

Pedoia

et al. 2020

Journal Orthopaedic Research

View full text Add to dashboard Cite

show abstract

“…The incidence of secondary injury of ACLR has been estimated to be 1:4 in athletes returning to the sport, indicating a high risk of secondary injury 5 . It has been demonstrated that the neuromuscular patterns in athletes after surgery change up to two years after ACLR which may explain the high incidence rate of re-injury 6 . Therefore, to optimize the results of conventional post-operative rehabilitation, there is a need to have tertiary prevention.…”

Section: Introductionmentioning

confidence: 99%

The effects of core stabilization exercises on the neuromuscular function of athletes with ACL reconstruction

Saki

Shafiee

Tahayori

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Athletes who have undergone anterior cruciate ligament reconstruction (ACLR) often exhibit persistently impaired kinematics and strength. Core stability training appears to be effective for reducing high-risk landing mechanics and preventing primary anterior cruciate ligament (ACL) injuries; however, there have been few attempts to examine their effects in athletes who have undergone ACLR. This study aimed to investigate the effect of eight weeks of simple core stability training on core endurance, hip strength, and knee kinematics in ACLR athletes. Twenty-six male athletes (20–30 years old) with a history of ACL surgery with hamstring tendon autograft were randomly divided into training (n = 13) and control groups (n = 13). The training group performed core stability exercises for eight weeks before starting their team training; the control group did not receive any intervention. Both groups continued their regular team schedule. The core endurance, hip muscle strength, and knee kinematics were assessed by the McGill test, a hand-held dynamometer, and video-taping, respectively. Analysis of covariance test was used for data analysis. The training group showed a significant increase in core endurance, hip abductor and external rotator strength, knee flexion angle, and a significant decrease in the knee valgus angle during single-leg landing in post-training tests compared to their baseline tests (P < 0.05). Our results demonstrated that core stability exercise alters neuromuscular function to a level that is clinically acceptable and statistically significant. Because of the high incidence rate of secondary ACL injury after ACLR, it is recommended that athletes with a history of ACLR benefit from adding core stability exercises to warm-up routines or tertiary prevention programs even after completing post-operative rehabilitation. It is fast and not time-consuming to perform for athletes to reduce the risk factors of re-injury. Trial registration: This study was registered in the Iranian Registry of Clinical Trials with the number IRCT20190224042827N2, registered on 19 December 2019.

show abstract

Knee kinetics during walking continue to change at eight years after ACL reconstruction

Cited by 2 publications

References 0 publications

Altered tibiofemoral position following ACL reconstruction is associated with cartilage matrix changes: A voxel‐based relaxometry analysis

Altered tibiofemoral position following ACL reconstruction is associated with cartilage matrix changes: A voxel‐based relaxometry analysis

The effects of core stabilization exercises on the neuromuscular function of athletes with ACL reconstruction

Contact Info

Product

Resources

About